Bộ não của bạn không chỉ là một túi hóa chất-David Anderson

Your brain is more than a bag of chemicals - David Anderson
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Your brain is more than a bag of chemicals - David Anderson

 


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[Music] [Music] [Applause]



so<00:00:16.240> raise<00:00:16.520> your<00:00:16.760> hand<00:00:17.600> if<00:00:18.000> you<00:00:18.480> know<00:00:18.840> someone
so raise your hand if you know someone so raise your hand if you know someone in<00:00:19.480> your<00:00:19.760> immediate<00:00:20.359> family<00:00:20.880> or<00:00:21.080> circle<00:00:21.400> of in your immediate family or circle of in your immediate family or circle of friends<00:00:21.880> who<00:00:22.039> suffers<00:00:22.400> from<00:00:22.640> some<00:00:22.920> form<00:00:23.199> of friends who suffers from some form of friends who suffers from some form of mental mental mental illness<00:00:26.080> I<00:00:26.240> thought<00:00:26.439> so<00:00:26.920> not<00:00:27.359> surprised<00:00:28.359> and illness I thought so not surprised and illness I thought so not surprised and raise<00:00:28.880> your<00:00:29.119> hand<00:00:29.519> if<00:00:29.640> you<00:00:30.039> think<00:00:30.279> that<00:00:30.480> basic raise your hand if you think that basic raise your hand if you think that basic research<00:00:31.199> on<00:00:31.439> fruit<00:00:31.759> flies<00:00:32.239> has<00:00:32.480> anything<00:00:32.800> to research on fruit flies has anything to research on fruit flies has anything to do<00:00:33.239> with<00:00:33.719> understanding<00:00:34.040> mental<00:00:34.320> illness<00:00:34.719> in



humans<00:00:38.239> yeah<00:00:38.680> I<00:00:38.920> thought<00:00:39.120> so<00:00:39.399> I'm<00:00:39.559> also<00:00:39.840> not
humans yeah I thought so I'm also not humans yeah I thought so I'm also not surprised<00:00:40.559> I<00:00:40.640> can<00:00:40.760> see<00:00:40.920> I<00:00:41.039> got<00:00:41.200> my<00:00:41.320> work<00:00:41.600> cut surprised I can see I got my work cut surprised I can see I got my work cut out<00:00:41.960> for<00:00:42.160> me out for me out for me here<00:00:44.000> as<00:00:44.120> we<00:00:44.280> heard<00:00:44.520> from<00:00:44.760> Dr<00:00:45.000> Insel<00:00:45.520> this here as we heard from Dr Insel this here as we heard from Dr Insel this morning<00:00:46.559> psychiatric<00:00:47.280> disorders<00:00:48.199> like morning psychiatric disorders like morning psychiatric disorders like autism<00:00:49.280> depression<00:00:49.680> and<00:00:49.840> schizophrenia<00:00:50.600> take autism depression and schizophrenia take autism depression and schizophrenia take a<00:00:50.960> terrible<00:00:51.399> toll<00:00:52.079> on<00:00:52.320> human<00:00:53.079> suffering<00:00:54.079> we a terrible toll on human suffering we a terrible toll on human suffering we know<00:00:54.520> much<00:00:54.800> less<00:00:55.440> about<00:00:55.719> their<00:00:55.960> treatment<00:00:56.879> and know much less about their treatment and know much less about their treatment and the<00:00:57.920> understanding<00:00:58.120> of<00:00:58.239> their<00:00:58.440> basic the understanding of their basic the understanding of their basic mechanisms<00:00:59.359> than<00:00:59.480> we<00:00:59.600> do<00:01:00.199> about<00:01:00.440> diseases<00:01:00.879> of mechanisms than we do about diseases of mechanisms than we do about diseases of the<00:01:01.239> body<00:01:01.879> think<00:01:02.079> about<00:01:02.280> it<00:01:02.760> in the body think about it in the body think about it in 2013<00:01:04.600> the<00:01:04.799> second<00:01:05.159> decade<00:01:05.519> of<00:01:05.640> the<00:01:05.760> Millennium 2013 the second decade of the Millennium 2013 the second decade of the Millennium if<00:01:06.640> you're<00:01:06.840> concerned<00:01:07.240> about<00:01:07.400> a<00:01:07.600> cancer if you're concerned about a cancer if you're concerned about a cancer diagnosis<00:01:09.000> and<00:01:09.119> you<00:01:09.240> go<00:01:09.360> to<00:01:09.479> your<00:01:09.680> doctor<00:01:10.280> you diagnosis and you go to your doctor you diagnosis and you go to your doctor you get<00:01:10.640> bone<00:01:11.000> scans<00:01:11.840> biopsies<00:01:12.799> and<00:01:13.000> blood<00:01:13.320> tests get bone scans biopsies and blood tests get bone scans biopsies and blood tests in<00:01:14.759> 2013<00:01:15.759> if<00:01:15.960> you're<00:01:16.080> concerned<00:01:16.439> about<00:01:16.600> a in 2013 if you're concerned about a in 2013 if you're concerned about a depression<00:01:17.360> diagnosis<00:01:18.320> you<00:01:18.479> go<00:01:18.600> to<00:01:18.720> your depression diagnosis you go to your depression diagnosis you go to your doctor<00:01:19.159> and<00:01:19.280> what<00:01:19.360> do<00:01:19.439> you<00:01:19.640> get<00:01:20.240> a doctor and what do you get a doctor and what do you get a questionnaire<00:01:22.240> part<00:01:22.400> of<00:01:22.520> the<00:01:22.680> reason<00:01:23.000> for questionnaire part of the reason for questionnaire part of the reason for this<00:01:23.759> is<00:01:23.960> that<00:01:24.200> we<00:01:24.400> have<00:01:24.720> an<00:01:25.200> oversimplified this is that we have an oversimplified this is that we have an oversimplified and<00:01:26.479> increasingly<00:01:27.400> outmoded<00:01:28.159> view<00:01:28.479> of<00:01:28.600> the and increasingly outmoded view of the and increasingly outmoded view of the biological<00:01:29.400> basis<00:01:30.079> of<00:01:30.240> psychiatric biological basis of psychiatric biological basis of psychiatric disorders<00:01:32.159> we<00:01:32.320> tend<00:01:32.560> to<00:01:32.720> view<00:01:32.960> them<00:01:33.439> and<00:01:33.680> the disorders we tend to view them and the disorders we tend to view them and the popular<00:01:34.399> press<00:01:34.960> AIDS<00:01:35.240> and<00:01:35.439> abets<00:01:35.920> this<00:01:36.079> view popular press AIDS and abets this view popular press AIDS and abets this view as<00:01:37.000> chemical<00:01:37.560> imbalances<00:01:38.560> in<00:01:38.680> the<00:01:38.840> brain<00:01:39.280> as as chemical imbalances in the brain as as chemical imbalances in the brain as if<00:01:39.560> the<00:01:39.680> brain<00:01:40.000> were<00:01:40.320> some<00:01:40.600> kind<00:01:40.759> of<00:01:41.079> bag<00:01:41.759> of if the brain were some kind of bag of if the brain were some kind of bag of chemical<00:01:42.479> soup<00:01:43.159> full<00:01:43.439> of<00:01:43.640> dopamine<00:01:44.479> serotonin chemical soup full of dopamine serotonin chemical soup full of dopamine serotonin and<00:01:45.479> neopine<00:01:46.159> phrine<00:01:47.159> this<00:01:47.399> view<00:01:48.000> is and neopine phrine this view is and neopine phrine this view is conditioned<00:01:48.840> by<00:01:49.000> the<00:01:49.200> fact<00:01:49.560> that<00:01:49.759> many<00:01:50.000> of<00:01:50.119> the conditioned by the fact that many of the conditioned by the fact that many of the drugs<00:01:50.680> that<00:01:50.840> are<00:01:51.040> prescribed<00:01:51.560> to<00:01:51.719> treat<00:01:52.119> these drugs that are prescribed to treat these drugs that are prescribed to treat these disorders<00:01:53.200> like<00:01:53.520> Prozac<00:01:54.520> act<00:01:55.040> by<00:01:55.320> globally disorders like Prozac act by globally disorders like Prozac act by globally changing<00:01:56.399> brain<00:01:56.759> chemistry<00:01:57.680> as<00:01:57.880> if<00:01:58.079> the<00:01:58.200> brain changing brain chemistry as if the brain changing brain chemistry as if the brain were<00:01:58.799> indeed<00:01:59.360> a<00:01:59.520> bag<00:01:59.960> of<00:02:00.159> chemical<00:02:00.840> soup<00:02:01.840> but were indeed a bag of chemical soup but were indeed a bag of chemical soup but that<00:02:02.320> can't<00:02:02.600> be<00:02:02.840> the<00:02:03.039> answer<00:02:03.640> because<00:02:04.039> these that can't be the answer because these that can't be the answer because these drugs<00:02:04.680> actually<00:02:05.000> don't<00:02:05.280> work<00:02:05.560> all<00:02:05.799> that<00:02:06.000> well drugs actually don't work all that well drugs actually don't work all that well a<00:02:06.840> lot<00:02:06.960> of<00:02:07.159> people<00:02:07.439> won't<00:02:07.880> take<00:02:08.080> them<00:02:08.440> or<00:02:08.679> stop a lot of people won't take them or stop a lot of people won't take them or stop taking<00:02:09.440> them<00:02:09.879> because<00:02:10.080> of<00:02:10.200> their<00:02:10.440> unpleasant taking them because of their unpleasant taking them because of their unpleasant side<00:02:11.560> effects<00:02:12.560> these<00:02:12.760> drugs<00:02:13.280> have<00:02:13.480> so<00:02:13.680> many side effects these drugs have so many side effects these drugs have so many side<00:02:14.280> effects<00:02:14.920> because<00:02:15.400> using<00:02:15.879> them<00:02:16.120> to<00:02:16.319> treat side effects because using them to treat side effects because using them to treat a<00:02:16.800> complex<00:02:17.239> psychiatric<00:02:17.959> disorder<00:02:18.680> is<00:02:18.840> a<00:02:18.959> bit a complex psychiatric disorder is a bit a complex psychiatric disorder is a bit like<00:02:19.319> trying<00:02:19.519> to<00:02:19.720> change<00:02:20.040> your<00:02:20.280> engine<00:02:20.680> oil<00:02:21.280> by like trying to change your engine oil by like trying to change your engine oil by opening<00:02:21.800> a<00:02:22.040> can<00:02:22.519> and<00:02:22.720> pouring<00:02:23.040> it<00:02:23.239> all<00:02:23.400> over opening a can and pouring it all over opening a can and pouring it all over the<00:02:23.720> engine<00:02:24.480> block<00:02:25.480> some<00:02:25.680> of<00:02:25.800> it<00:02:25.959> will<00:02:26.200> dribble the engine block some of it will dribble the engine block some of it will dribble into<00:02:26.840> the<00:02:27.000> right<00:02:27.280> place<00:02:27.599> but<00:02:27.840> a<00:02:27.920> lot<00:02:28.080> of<00:02:28.200> it into the right place but a lot of it into the right place but a lot of it will<00:02:28.480> do<00:02:28.680> more<00:02:28.959> harm<00:02:29.239> than<00:02:29.480> good will do more harm than good will do more harm than good now<00:02:31.319> an<00:02:31.519> emerging<00:02:32.160> view<00:02:33.160> that<00:02:33.280> you<00:02:33.480> also<00:02:33.720> heard now an emerging view that you also heard now an emerging view that you also heard about<00:02:34.200> from<00:02:34.400> Dr<00:02:34.680> Insel<00:02:35.120> this<00:02:35.280> morning<00:02:36.120> is<00:02:36.280> that about from Dr Insel this morning is that about from Dr Insel this morning is that psychiatric<00:02:37.239> disorders<00:02:37.959> are<00:02:38.280> actually psychiatric disorders are actually psychiatric disorders are actually disturbances<00:02:39.720> of<00:02:39.879> neural<00:02:40.440> circuits<00:02:41.280> that disturbances of neural circuits that disturbances of neural circuits that mediate<00:02:42.400> emotion<00:02:43.120> mood<00:02:43.840> and<00:02:44.440> affect<00:02:45.440> when<00:02:45.560> we mediate emotion mood and affect when we mediate emotion mood and affect when we think<00:02:45.959> about<00:02:46.360> cognition<00:02:47.280> we<00:02:47.480> analogize<00:02:48.120> the think about cognition we analogize the think about cognition we analogize the brain<00:02:48.480> to<00:02:48.680> a<00:02:48.840> computer<00:02:49.599> that's<00:02:49.800> no<00:02:50.120> problem brain to a computer that's no problem brain to a computer that's no problem well<00:02:51.080> it<00:02:51.200> turns<00:02:51.440> out<00:02:51.840> that<00:02:52.120> the<00:02:52.280> computer well it turns out that the computer well it turns out that the computer analogy<00:02:53.440> is<00:02:53.680> just<00:02:54.120> as<00:02:54.360> valid<00:02:54.680> for<00:02:54.920> emotion analogy is just as valid for emotion analogy is just as valid for emotion it's<00:02:56.080> just<00:02:56.200> that<00:02:56.319> we<00:02:56.440> don't<00:02:56.599> tend<00:02:56.800> to<00:02:56.959> think it's just that we don't tend to think it's just that we don't tend to think about<00:02:57.360> it<00:02:57.599> that<00:02:57.800> way<00:02:58.760> but<00:02:58.920> we<00:02:59.080> know<00:02:59.319> we<00:02:59.440> know about it that way but we know we know about it that way but we know we know much<00:02:59.879> much<00:03:00.159> less<00:03:00.680> about<00:03:00.920> the<00:03:01.080> circuit<00:03:01.519> basis much much less about the circuit basis much much less about the circuit basis of<00:03:02.239> psychiatric<00:03:03.000> disorders<00:03:03.879> because<00:03:04.319> of<00:03:04.480> the of psychiatric disorders because of the of psychiatric disorders because of the overwhelming<00:03:05.360> dominance<00:03:05.799> of<00:03:05.959> this<00:03:06.360> chemical overwhelming dominance of this chemical overwhelming dominance of this chemical imbalance imbalance imbalance hypothesis<00:03:09.480> now<00:03:09.760> it's<00:03:10.000> not<00:03:10.519> that<00:03:10.959> chemicals hypothesis now it's not that chemicals hypothesis now it's not that chemicals are<00:03:11.920> not<00:03:12.280> important<00:03:13.040> in<00:03:13.239> psychiatric are not important in psychiatric are not important in psychiatric disorders<00:03:14.640> it's<00:03:14.840> just<00:03:15.000> that<00:03:15.239> they<00:03:15.360> don't disorders it's just that they don't disorders it's just that they don't bathe<00:03:16.480> the<00:03:16.640> brain<00:03:17.040> like<00:03:17.560> soup<00:03:18.560> rather<00:03:18.879> they're bathe the brain like soup rather they're bathe the brain like soup rather they're released<00:03:19.920> in<00:03:20.159> very<00:03:20.480> specific<00:03:21.200> locations<00:03:22.159> and released in very specific locations and released in very specific locations and they<00:03:22.599> act<00:03:23.040> on<00:03:23.360> specific<00:03:24.000> synapses<00:03:24.920> to<00:03:25.200> change they act on specific synapses to change they act on specific synapses to change the<00:03:25.959> flow<00:03:26.239> of<00:03:26.480> information<00:03:27.080> in<00:03:27.200> the<00:03:27.599> brain<00:03:28.599> so the flow of information in the brain so the flow of information in the brain so if<00:03:28.879> we<00:03:29.040> ever<00:03:29.360> really<00:03:29.799> want<00:03:29.920> to<00:03:30.400> understand<00:03:31.040> the if we ever really want to understand the if we ever really want to understand the biological<00:03:31.840> basis<00:03:32.159> of<00:03:32.360> psychiatric biological basis of psychiatric biological basis of psychiatric disorders<00:03:33.680> we<00:03:33.840> need<00:03:34.000> to<00:03:34.360> pinpoint<00:03:35.200> these disorders we need to pinpoint these disorders we need to pinpoint these locations<00:03:35.959> in<00:03:36.120> the<00:03:36.239> brain<00:03:36.799> where<00:03:37.040> these locations in the brain where these locations in the brain where these chemicals<00:03:37.840> act<00:03:38.720> otherwise<00:03:39.120> we're<00:03:39.239> going<00:03:39.319> to chemicals act otherwise we're going to chemicals act otherwise we're going to keep<00:03:39.720> pouring<00:03:40.120> oil<00:03:40.439> all<00:03:40.599> over<00:03:40.799> our<00:03:41.000> mental keep pouring oil all over our mental keep pouring oil all over our mental engines<00:03:42.040> and<00:03:42.239> suffering<00:03:42.720> the engines and suffering the engines and suffering the consequences<00:03:45.080> now<00:03:45.239> to<00:03:45.400> begin<00:03:46.080> to<00:03:46.560> overcome consequences now to begin to overcome consequences now to begin to overcome our<00:03:47.360> ignorance<00:03:48.159> of<00:03:48.319> the<00:03:48.480> role<00:03:48.920> of<00:03:49.120> brain our ignorance of the role of brain our ignorance of the role of brain chemistry<00:03:50.000> and<00:03:50.200> brain<00:03:50.519> circuitry<00:03:51.519> it's chemistry and brain circuitry it's chemistry and brain circuitry it's helpful<00:03:52.120> to<00:03:52.280> work<00:03:52.519> on<00:03:52.760> what<00:03:52.879> we<00:03:53.079> biologists helpful to work on what we biologists helpful to work on what we biologists call<00:03:54.360> model<00:03:54.799> organisms<00:03:55.799> animals<00:03:56.280> like<00:03:56.480> fruit call model organisms animals like fruit call model organisms animals like fruit flies<00:03:57.519> and<00:03:57.760> laboratory<00:03:58.400> mice<00:03:59.079> in<00:03:59.200> which<00:03:59.360> we flies and laboratory mice in which we flies and laboratory mice in which we can<00:03:59.799> apply<00:04:00.280> powerful<00:04:01.120> genetic<00:04:01.640> techniques<00:04:02.519> to can apply powerful genetic techniques to can apply powerful genetic techniques to molecularly<00:04:03.959> identify<00:04:04.879> and<00:04:05.159> pinpoint molecularly identify and pinpoint molecularly identify and pinpoint specific<00:04:06.640> classes<00:04:07.000> of<00:04:07.159> neurons<00:04:07.879> as<00:04:07.959> you<00:04:08.079> heard specific classes of neurons as you heard specific classes of neurons as you heard about<00:04:08.480> an<00:04:08.680> Alan<00:04:08.959> Jones's<00:04:09.560> talk<00:04:09.840> this<00:04:09.959> morning about an Alan Jones's talk this morning about an Alan Jones's talk this morning moreover<00:04:11.680> once<00:04:11.920> we<00:04:12.079> can<00:04:12.280> do<00:04:12.599> that<00:04:12.920> we<00:04:13.040> can moreover once we can do that we can moreover once we can do that we can actually<00:04:13.879> activate<00:04:14.519> specific<00:04:14.959> neurons<00:04:15.799> or<00:04:15.959> we actually activate specific neurons or we actually activate specific neurons or we can<00:04:16.359> destroy<00:04:17.000> or<00:04:17.239> inhibit<00:04:17.880> the<00:04:18.120> activity<00:04:18.519> of can destroy or inhibit the activity of can destroy or inhibit the activity of those<00:04:19.000> neurons<00:04:20.000> so<00:04:20.199> if<00:04:20.320> we<00:04:20.519> inhibit<00:04:20.919> a those neurons so if we inhibit a those neurons so if we inhibit a particular<00:04:21.720> type<00:04:21.919> of<00:04:22.079> neuron<00:04:22.800> and<00:04:22.919> we<00:04:23.040> find particular type of neuron and we find particular type of neuron and we find that<00:04:23.360> a<00:04:23.520> behavior<00:04:24.199> is<00:04:24.440> blocked<00:04:25.199> we<00:04:25.320> can that a behavior is blocked we can that a behavior is blocked we can conclude<00:04:26.360> that<00:04:26.560> those<00:04:26.800> neurons<00:04:27.440> are conclude that those neurons are conclude that those neurons are necessary<00:04:28.560> for<00:04:28.800> that<00:04:29.000> behavior necessary for that behavior necessary for that behavior on<00:04:30.440> the<00:04:30.560> other<00:04:30.720> hand<00:04:31.080> if<00:04:31.199> we<00:04:31.479> activate<00:04:31.880> a<00:04:32.000> group on the other hand if we activate a group on the other hand if we activate a group of<00:04:32.360> neurons<00:04:32.919> and<00:04:33.039> we<00:04:33.199> find<00:04:33.440> that<00:04:33.600> that of neurons and we find that that of neurons and we find that that produces<00:04:34.400> the<00:04:34.600> behavior<00:04:35.479> we<00:04:35.600> can<00:04:35.880> conclude produces the behavior we can conclude produces the behavior we can conclude that<00:04:36.800> those<00:04:36.960> neurons<00:04:37.360> are<00:04:37.680> sufficient<00:04:38.280> for that those neurons are sufficient for that those neurons are sufficient for the<00:04:38.639> behavior<00:04:39.639> so<00:04:40.039> in<00:04:40.240> this<00:04:40.520> way<00:04:40.800> by<00:04:40.960> doing the behavior so in this way by doing the behavior so in this way by doing this<00:04:41.600> kind<00:04:41.800> of<00:04:42.080> test<00:04:42.840> we<00:04:42.960> can<00:04:43.360> draw<00:04:43.960> cause<00:04:44.440> and this kind of test we can draw cause and this kind of test we can draw cause and effect<00:04:45.160> relationships<00:04:46.120> between<00:04:46.440> the effect relationships between the effect relationships between the activity<00:04:47.160> of<00:04:47.400> specific<00:04:47.840> neurons<00:04:48.639> in activity of specific neurons in activity of specific neurons in particular<00:04:49.440> circuits<00:04:50.120> and<00:04:50.360> particular particular circuits and particular particular circuits and particular behaviors<00:04:51.320> something<00:04:51.639> that<00:04:51.759> is<00:04:52.000> extremely behaviors something that is extremely behaviors something that is extremely difficult<00:04:53.000> if<00:04:53.120> not<00:04:53.360> impossible<00:04:53.960> to<00:04:54.120> do<00:04:54.400> right difficult if not impossible to do right difficult if not impossible to do right now<00:04:55.120> in



humans<00:04:59.080> but<00:04:59.759> can<00:04:59.960> an<00:05:00.120> organism<00:05:00.600> like<00:05:00.720> a<00:05:00.800> fruit
humans but can an organism like a fruit humans but can an organism like a fruit fly<00:05:01.479> which<00:05:01.600> is<00:05:01.880> it's<00:05:02.000> a<00:05:02.280> great<00:05:02.680> model<00:05:03.400> organism fly which is it's a great model organism fly which is it's a great model organism because<00:05:04.960> it's<00:05:05.160> got<00:05:05.280> a<00:05:05.479> small<00:05:05.840> brain<00:05:06.759> it's because it's got a small brain it's because it's got a small brain it's capable<00:05:07.840> of<00:05:08.120> complex<00:05:08.520> and<00:05:08.759> sophisticated capable of complex and sophisticated capable of complex and sophisticated behaviors<00:05:10.400> it<00:05:10.560> breeds<00:05:11.120> quickly<00:05:11.840> and<00:05:12.000> it's behaviors it breeds quickly and it's behaviors it breeds quickly and it's cheap<00:05:13.440> but<00:05:13.600> can<00:05:13.759> an<00:05:13.960> organism<00:05:14.639> like<00:05:14.919> this cheap but can an organism like this cheap but can an organism like this teach<00:05:15.880> us<00:05:16.360> anything<00:05:17.080> about<00:05:17.400> emotion<00:05:17.880> likee teach us anything about emotion likee teach us anything about emotion likee states<00:05:19.000> do<00:05:19.240> these<00:05:19.520> organisms<00:05:20.160> even<00:05:20.600> have states do these organisms even have states do these organisms even have emotion<00:05:21.639> likee<00:05:21.880> States<00:05:22.400> or<00:05:22.520> are<00:05:22.680> they<00:05:22.840> just emotion likee States or are they just emotion likee States or are they just little<00:05:23.319> digital little digital little digital robots<00:05:25.720> Charles<00:05:26.160> Darwin<00:05:26.880> believed<00:05:27.280> that robots Charles Darwin believed that robots Charles Darwin believed that insects<00:05:28.039> had<00:05:28.240> emotion<00:05:28.960> and<00:05:29.160> expressed<00:05:29.880> them insects had emotion and expressed them insects had emotion and expressed them in<00:05:30.319> their<00:05:30.520> behaviors<00:05:31.080> as<00:05:31.199> he<00:05:31.319> wrote<00:05:31.560> in<00:05:31.720> his in their behaviors as he wrote in his in their behaviors as he wrote in his 1872<00:05:32.919> monograph<00:05:33.720> on<00:05:33.880> the<00:05:34.080> expression<00:05:34.440> of<00:05:34.560> the 1872 monograph on the expression of the 1872 monograph on the expression of the emotions<00:05:35.080> in<00:05:35.240> man<00:05:35.440> and<00:05:35.919> animals<00:05:36.919> and<00:05:37.120> my emotions in man and animals and my emotions in man and animals and my aonomus<00:05:37.720> colleague<00:05:38.400> Seymour<00:05:38.880> benzer aonomus colleague Seymour benzer aonomus colleague Seymour benzer believed<00:05:39.639> it<00:05:39.800> as<00:05:39.960> well<00:05:40.199> Seymour<00:05:40.960> is<00:05:41.160> the<00:05:41.319> man believed it as well Seymour is the man believed it as well Seymour is the man that<00:05:41.759> introduced<00:05:42.440> the<00:05:42.600> use<00:05:42.840> of<00:05:43.000> dropa<00:05:43.960> here<00:05:44.120> at that introduced the use of dropa here at that introduced the use of dropa here at Caltech<00:05:44.840> in<00:05:44.960> the<00:05:45.080> 60s<00:05:45.840> as<00:05:45.960> a<00:05:46.120> model<00:05:46.520> organism Caltech in the 60s as a model organism Caltech in the 60s as a model organism to<00:05:47.440> study<00:05:47.800> the<00:05:47.960> connection<00:05:48.639> between<00:05:49.000> genes to study the connection between genes to study the connection between genes and<00:05:49.800> behavior<00:05:50.639> Seymour<00:05:51.160> recruited<00:05:51.600> me<00:05:51.759> to and behavior Seymour recruited me to and behavior Seymour recruited me to Caltech<00:05:52.720> in<00:05:52.840> the<00:05:52.960> late<00:05:53.440> 1980s<00:05:54.440> he<00:05:54.560> was<00:05:54.840> my<00:05:55.319> Jedi Caltech in the late 1980s he was my Jedi Caltech in the late 1980s he was my Jedi and<00:05:56.240> my<00:05:56.520> Rabbi<00:05:57.400> while<00:05:57.600> he<00:05:57.759> was<00:05:58.039> here<00:05:58.720> and and my Rabbi while he was here and and my Rabbi while he was here and Seymour<00:05:59.319> taught<00:05:59.720> me<00:05:59.880> both<00:06:00.039> to<00:06:00.240> love<00:06:00.479> flies<00:06:01.360> and Seymour taught me both to love flies and Seymour taught me both to love flies and also<00:06:01.840> to<00:06:02.120> play<00:06:02.440> with also to play with also to play with science<00:06:04.440> so<00:06:05.120> how<00:06:05.240> do<00:06:05.440> we<00:06:05.960> how<00:06:06.080> do<00:06:06.199> we<00:06:06.400> ask<00:06:06.680> this science so how do we how do we ask this science so how do we how do we ask this question<00:06:07.199> it's<00:06:07.360> one<00:06:07.520> thing<00:06:07.720> to<00:06:08.000> believe<00:06:08.840> that question it's one thing to believe that question it's one thing to believe that flies<00:06:09.759> have<00:06:10.039> emotion<00:06:10.520> likee<00:06:10.800> States<00:06:11.400> but<00:06:11.560> how flies have emotion likee States but how flies have emotion likee States but how do<00:06:11.759> we<00:06:11.960> actually<00:06:12.319> find<00:06:12.520> out<00:06:12.759> whether<00:06:13.000> that's do we actually find out whether that's do we actually find out whether that's true<00:06:13.479> or<00:06:13.680> not<00:06:14.680> now<00:06:15.080> in<00:06:15.319> humans<00:06:16.080> we<00:06:16.280> often<00:06:16.720> infer true or not now in humans we often infer true or not now in humans we often infer emotional<00:06:18.080> states<00:06:18.440> as<00:06:18.560> you'll<00:06:18.759> hear<00:06:19.039> later emotional states as you'll hear later emotional states as you'll hear later today<00:06:20.000> from<00:06:20.520> facial today from facial today from facial expressions<00:06:22.919> however<00:06:23.080> it's<00:06:23.199> a<00:06:23.280> little expressions however it's a little expressions however it's a little difficult<00:06:24.080> to<00:06:24.199> do<00:06:24.440> that<00:06:24.599> in<00:06:24.759> fruit<00:06:25.120> flies



it's<00:06:30.120> kind<00:06:30.240> of<00:06:30.440> like<00:06:30.840> landing<00:06:31.280> on<00:06:31.599> Mars<00:06:32.520> and
it's kind of like landing on Mars and it's kind of like landing on Mars and looking<00:06:33.000> out<00:06:33.199> the<00:06:33.400> window<00:06:33.960> of<00:06:34.080> your<00:06:34.400> spaceship looking out the window of your spaceship looking out the window of your spaceship at<00:06:35.400> all<00:06:35.560> the<00:06:35.680> little<00:06:35.919> green<00:06:36.240> men<00:06:36.479> who<00:06:36.599> are at all the little green men who are at all the little green men who are surrounding<00:06:37.400> it<00:06:37.800> and<00:06:37.960> trying<00:06:38.160> to<00:06:38.319> figure<00:06:38.599> out surrounding it and trying to figure out surrounding it and trying to figure out how<00:06:39.120> do<00:06:39.319> I<00:06:39.560> find<00:06:39.840> out<00:06:40.319> if<00:06:40.560> they<00:06:40.800> have<00:06:41.039> emotions how do I find out if they have emotions how do I find out if they have emotions or<00:06:41.720> not<00:06:42.680> what<00:06:42.919> what<00:06:43.080> can<00:06:43.240> we<00:06:43.639> do<00:06:44.639> it's<00:06:44.840> not<00:06:45.039> so or not what what can we do it's not so or not what what can we do it's not so easy<00:06:46.280> well<00:06:46.599> one<00:06:46.720> of<00:06:46.840> the<00:06:46.960> ways<00:06:47.240> that<00:06:47.400> we<00:06:47.520> can easy well one of the ways that we can easy well one of the ways that we can start<00:06:48.400> is<00:06:48.520> to<00:06:48.759> try<00:06:48.919> to<00:06:49.120> come<00:06:49.319> up<00:06:49.759> with<00:06:49.960> some start is to try to come up with some start is to try to come up with some general<00:06:51.360> characteristics<00:06:52.360> or<00:06:52.880> properties<00:06:53.880> of general characteristics or properties of general characteristics or properties of emotion<00:06:54.759> likee<00:06:55.199> states<00:06:56.199> such<00:06:56.360> as<00:06:56.800> arousal<00:06:57.800> and emotion likee states such as arousal and emotion likee states such as arousal and see<00:06:58.160> if<00:06:58.280> we<00:06:58.400> can<00:06:58.720> identify<00:06:59.800> any<00:07:00.080> fly<00:07:00.759> behaviors see if we can identify any fly behaviors see if we can identify any fly behaviors that<00:07:01.960> might<00:07:02.280> exhibit<00:07:02.800> some<00:07:02.919> of<00:07:03.120> those that might exhibit some of those that might exhibit some of those properties<00:07:04.960> so<00:07:05.280> three<00:07:05.560> important<00:07:06.080> ones<00:07:06.599> that properties so three important ones that properties so three important ones that I<00:07:06.879> can<00:07:07.120> think<00:07:07.280> of<00:07:07.800> are<00:07:08.520> persistence I can think of are persistence I can think of are persistence gradations<00:07:10.199> in<00:07:10.479> intensity<00:07:11.440> and<00:07:11.840> veilance gradations in intensity and veilance gradations in intensity and veilance persistence<00:07:13.599> means<00:07:13.960> longlasting<00:07:14.599> we<00:07:15.000> all persistence means longlasting we all persistence means longlasting we all know<00:07:15.840> that<00:07:16.240> the<00:07:16.560> stimulus<00:07:17.160> that<00:07:17.319> triggers<00:07:18.000> an know that the stimulus that triggers an know that the stimulus that triggers an emotion<00:07:18.800> Causes<00:07:19.240> That<00:07:19.440> Emotion<00:07:19.840> to<00:07:20.160> last<00:07:20.800> long emotion Causes That Emotion to last long emotion Causes That Emotion to last long after<00:07:21.400> the<00:07:21.599> stimulus<00:07:22.319> is<00:07:22.919> gone<00:07:23.919> gradations<00:07:24.440> of after the stimulus is gone gradations of after the stimulus is gone gradations of intensity<00:07:25.440> means<00:07:25.759> what<00:07:25.879> it<00:07:26.039> sounds<00:07:26.440> like<00:07:26.800> you intensity means what it sounds like you intensity means what it sounds like you can<00:07:27.199> dial<00:07:27.560> up<00:07:27.759> the<00:07:27.919> intensity<00:07:28.599> or<00:07:28.800> dial<00:07:29.080> down can dial up the intensity or dial down can dial up the intensity or dial down the<00:07:29.639> intensity<00:07:30.120> of<00:07:30.319> emot<00:07:30.639> of<00:07:30.759> an<00:07:30.879> emotion<00:07:31.440> if the intensity of emot of an emotion if the intensity of emot of an emotion if you're<00:07:31.720> a<00:07:31.840> little<00:07:32.039> bit<00:07:32.240> unhappy<00:07:33.000> the<00:07:33.120> corners you're a little bit unhappy the corners you're a little bit unhappy the corners of<00:07:33.599> your<00:07:33.800> mouth<00:07:34.080> turn<00:07:34.400> down<00:07:34.639> and<00:07:34.759> you<00:07:34.919> sniffle of your mouth turn down and you sniffle of your mouth turn down and you sniffle and<00:07:35.759> if<00:07:35.879> you're<00:07:36.360> very<00:07:36.639> unhappy<00:07:37.479> tears<00:07:37.759> pour and if you're very unhappy tears pour and if you're very unhappy tears pour down<00:07:38.280> your<00:07:38.520> face<00:07:38.960> and<00:07:39.080> you<00:07:39.199> might<00:07:39.639> SOB down your face and you might SOB down your face and you might SOB veilance<00:07:41.400> means<00:07:41.800> good<00:07:42.039> or<00:07:42.319> bad<00:07:42.919> positive<00:07:43.400> or veilance means good or bad positive or veilance means good or bad positive or negative<00:07:45.159> so<00:07:45.400> we<00:07:45.639> decided<00:07:46.039> to<00:07:46.199> see<00:07:46.919> if<00:07:47.120> flies negative so we decided to see if flies negative so we decided to see if flies could<00:07:48.319> be<00:07:48.560> provoked<00:07:49.000> into<00:07:49.240> showing<00:07:49.680> the<00:07:49.919> kind could be provoked into showing the kind could be provoked into showing the kind of<00:07:50.440> behavior<00:07:51.199> that<00:07:51.319> you<00:07:51.440> see<00:07:52.120> by<00:07:52.319> the of behavior that you see by the of behavior that you see by the proverbial<00:07:53.159> wasp<00:07:53.639> at<00:07:53.759> the<00:07:53.919> picnic<00:07:54.280> table<00:07:54.800> you proverbial wasp at the picnic table you proverbial wasp at the picnic table you know<00:07:55.080> the<00:07:55.159> one<00:07:55.319> that<00:07:55.479> keeps<00:07:55.759> coming<00:07:56.120> back<00:07:56.240> to know the one that keeps coming back to know the one that keeps coming back to your<00:07:56.639> hamburger<00:07:57.440> the<00:07:57.560> more<00:07:57.879> vigorously<00:07:58.440> you your hamburger the more vigorously you your hamburger the more vigorously you try<00:07:58.759> to<00:07:58.919> swat<00:07:59.240> it<00:07:59.599> away<00:07:59.960> and<00:08:00.080> seems<00:08:00.319> to<00:08:00.520> keep try to swat it away and seems to keep try to swat it away and seems to keep getting<00:08:01.400> irritated<00:08:02.400> so<00:08:02.800> we<00:08:02.960> built<00:08:03.479> a<00:08:03.720> device getting irritated so we built a device getting irritated so we built a device which<00:08:04.479> we<00:08:04.639> call<00:08:04.879> a<00:08:05.120> puffo<00:08:05.560> mat<00:08:06.240> in<00:08:06.400> which<00:08:06.560> we which we call a puffo mat in which we which we call a puffo mat in which we could<00:08:06.919> deliver<00:08:07.599> little<00:08:07.919> brief<00:08:08.360> air<00:08:08.720> Puffs<00:08:09.280> to could deliver little brief air Puffs to could deliver little brief air Puffs to fruit<00:08:09.759> flies<00:08:10.360> in<00:08:10.520> these<00:08:10.800> plastic<00:08:11.199> tubes<00:08:11.520> in fruit flies in these plastic tubes in fruit flies in these plastic tubes in our<00:08:11.919> laboratory<00:08:12.440> bench<00:08:13.120> and<00:08:13.319> blow<00:08:13.639> them<00:08:13.960> away our laboratory bench and blow them away our laboratory bench and blow them away and<00:08:15.120> what<00:08:15.240> we<00:08:15.479> found<00:08:16.120> is<00:08:16.280> that<00:08:16.479> if<00:08:16.599> we<00:08:16.840> gave and what we found is that if we gave and what we found is that if we gave these<00:08:17.400> flies<00:08:17.879> in<00:08:18.039> the<00:08:18.199> puff<00:08:18.400> ofat<00:08:19.000> several these flies in the puff ofat several these flies in the puff ofat several Puffs<00:08:19.720> in<00:08:19.840> a<00:08:20.039> row<00:08:20.840> they<00:08:21.039> became<00:08:21.639> somewhat Puffs in a row they became somewhat Puffs in a row they became somewhat hyperactive<00:08:23.280> and<00:08:23.599> continue<00:08:24.000> to<00:08:24.120> run<00:08:24.360> around hyperactive and continue to run around hyperactive and continue to run around for<00:08:25.120> some<00:08:25.479> time<00:08:25.919> after<00:08:26.159> the<00:08:26.280> air<00:08:26.560> Puffs for some time after the air Puffs for some time after the air Puffs actually<00:08:27.360> stopped<00:08:28.000> and<00:08:28.159> took<00:08:28.319> a<00:08:28.479> while<00:08:28.680> to actually stopped and took a while to actually stopped and took a while to come<00:08:29.520> calm<00:08:30.039> down<00:08:31.039> so<00:08:31.319> we<00:08:31.560> Quantified<00:08:32.279> this come calm down so we Quantified this come calm down so we Quantified this Behavior<00:08:33.320> using<00:08:34.279> custom<00:08:34.640> Locomotive Behavior using custom Locomotive Behavior using custom Locomotive Tracking<00:08:35.800> software<00:08:36.320> developed<00:08:36.760> with<00:08:36.919> my Tracking software developed with my Tracking software developed with my collaborator<00:08:37.800> Petro<00:08:38.240> perona<00:08:38.880> who's<00:08:39.080> in<00:08:39.200> the collaborator Petro perona who's in the collaborator Petro perona who's in the electrical<00:08:40.080> engineering<00:08:40.680> division<00:08:41.080> here<00:08:41.240> at electrical engineering division here at electrical engineering division here at Caltech<00:08:42.560> and<00:08:42.719> what<00:08:42.919> this<00:08:43.120> quantification Caltech and what this quantification Caltech and what this quantification showed<00:08:44.320> us<00:08:44.760> is<00:08:44.920> that<00:08:45.240> upon<00:08:45.680> experiencing<00:08:46.600> a showed us is that upon experiencing a showed us is that upon experiencing a train<00:08:47.160> of<00:08:47.360> these<00:08:47.560> air<00:08:47.880> Puffs<00:08:48.519> the<00:08:48.640> Flies train of these air Puffs the Flies train of these air Puffs the Flies appear<00:08:49.399> to<00:08:49.600> enter<00:08:50.160> a<00:08:50.360> kind<00:08:50.519> of<00:08:50.839> state<00:08:51.160> of appear to enter a kind of state of appear to enter a kind of state of hyperactivity<00:08:52.800> which<00:08:52.920> is<00:08:53.240> persistent hyperactivity which is persistent hyperactivity which is persistent longlasting<00:08:54.839> and<00:08:55.760> also<00:08:56.040> appears<00:08:56.519> to<00:08:56.680> be longlasting and also appears to be longlasting and also appears to be graded<00:08:58.279> more<00:08:58.640> puffs<00:08:59.160> or<00:08:59.519> more<00:08:59.760> intense<00:09:00.279> Puffs graded more puffs or more intense Puffs graded more puffs or more intense Puffs make<00:09:01.360> the<00:09:01.519> state<00:09:02.040> last<00:09:02.440> for<00:09:02.600> a<00:09:02.760> longer<00:09:03.079> period make the state last for a longer period make the state last for a longer period of<00:09:03.800> time<00:09:04.800> so<00:09:04.959> now<00:09:05.079> we<00:09:05.200> wanted<00:09:05.399> to<00:09:05.600> try<00:09:05.760> to of time so now we wanted to try to of time so now we wanted to try to understand<00:09:06.600> something<00:09:06.920> about<00:09:07.200> what<00:09:07.480> controls understand something about what controls understand something about what controls the<00:09:08.480> duration<00:09:09.120> of<00:09:09.320> this<00:09:09.920> state<00:09:10.920> so<00:09:11.240> we<00:09:11.440> decided the duration of this state so we decided the duration of this state so we decided to<00:09:12.120> use<00:09:12.399> our<00:09:12.680> puff<00:09:12.920> aat<00:09:13.279> and<00:09:13.399> our<00:09:13.560> automated to use our puff aat and our automated to use our puff aat and our automated tracking<00:09:14.640> software<00:09:15.399> to<00:09:15.560> Screen<00:09:16.120> through tracking software to Screen through tracking software to Screen through hundreds<00:09:16.800> of<00:09:17.000> lines<00:09:17.680> of<00:09:17.880> mutant<00:09:18.320> fruit<00:09:18.640> flies hundreds of lines of mutant fruit flies hundreds of lines of mutant fruit flies to<00:09:19.360> see<00:09:19.560> if<00:09:19.680> we<00:09:19.800> could<00:09:20.040> find<00:09:20.360> any<00:09:20.760> that<00:09:20.880> showed to see if we could find any that showed to see if we could find any that showed abnormal<00:09:22.160> responses<00:09:23.040> to<00:09:23.160> the<00:09:23.320> air<00:09:23.640> Puffs<00:09:24.200> and abnormal responses to the air Puffs and abnormal responses to the air Puffs and this<00:09:24.440> is<00:09:24.560> one<00:09:24.680> of<00:09:24.800> the<00:09:24.920> great<00:09:25.160> things<00:09:25.440> about this is one of the great things about this is one of the great things about fruit<00:09:26.040> flies<00:09:26.640> there<00:09:26.760> are<00:09:27.079> repositories<00:09:28.000> where fruit flies there are repositories where fruit flies there are repositories where you<00:09:28.200> can<00:09:28.360> just<00:09:28.560> pick<00:09:28.720> up<00:09:28.880> the<00:09:28.959> phone<00:09:29.519> and<00:09:29.680> order you can just pick up the phone and order you can just pick up the phone and order hundreds<00:09:30.519> of<00:09:30.720> vials<00:09:31.079> of<00:09:31.240> flies<00:09:31.920> of<00:09:32.120> different hundreds of vials of flies of different hundreds of vials of flies of different mutants<00:09:33.079> and<00:09:33.240> Screen<00:09:33.600> them<00:09:33.720> in<00:09:33.880> your<00:09:34.079> assay mutants and Screen them in your assay mutants and Screen them in your assay and<00:09:34.720> then<00:09:34.959> find<00:09:35.160> out<00:09:35.399> what<00:09:35.600> Gene<00:09:35.920> is<00:09:36.200> affected and then find out what Gene is affected and then find out what Gene is affected in<00:09:36.880> the in the in the mutation<00:09:38.640> so<00:09:38.839> doing<00:09:39.200> this<00:09:39.360> screen<00:09:40.120> we mutation so doing this screen we mutation so doing this screen we discovered<00:09:40.959> one<00:09:41.320> mutant<00:09:42.279> that<00:09:42.440> took<00:09:42.800> much discovered one mutant that took much discovered one mutant that took much longer<00:09:43.600> than<00:09:43.800> normal<00:09:44.440> to<00:09:44.760> calm<00:09:45.160> down<00:09:45.760> after longer than normal to calm down after longer than normal to calm down after the<00:09:46.160> air<00:09:46.760> Puffs<00:09:47.760> and<00:09:47.880> when<00:09:48.000> We<00:09:48.240> examined<00:09:48.720> the the air Puffs and when We examined the the air Puffs and when We examined the gene<00:09:49.240> that<00:09:49.360> was<00:09:49.600> affected<00:09:50.360> in<00:09:50.519> this<00:09:50.720> mutation gene that was affected in this mutation gene that was affected in this mutation it<00:09:51.839> turned<00:09:52.120> out<00:09:52.279> to<00:09:52.440> encode<00:09:52.880> a<00:09:53.079> dopamine it turned out to encode a dopamine it turned out to encode a dopamine receptor<00:09:55.360> that's<00:09:55.640> right<00:09:55.920> flies<00:09:56.800> like<00:09:57.000> people receptor that's right flies like people receptor that's right flies like people have<00:09:57.519> dopamine<00:09:58.360> and<00:09:58.480> it<00:09:58.640> acts<00:09:58.839> on<00:09:58.959> their<00:09:59.120> brain have dopamine and it acts on their brain have dopamine and it acts on their brain brains<00:10:00.000> and<00:10:00.120> on<00:10:00.320> their<00:10:00.519> synapses<00:10:01.200> through<00:10:01.440> the brains and on their synapses through the brains and on their synapses through the same<00:10:01.959> dopamine<00:10:02.440> receptor<00:10:02.920> molecules<00:10:03.800> that same dopamine receptor molecules that same dopamine receptor molecules that you<00:10:04.360> and<00:10:04.600> I<00:10:05.000> have<00:10:06.000> dopamine<00:10:06.480> plays<00:10:06.720> a<00:10:06.880> number you and I have dopamine plays a number you and I have dopamine plays a number of<00:10:07.360> important<00:10:07.880> functions<00:10:08.600> in<00:10:08.720> the<00:10:08.880> brain of important functions in the brain of important functions in the brain including<00:10:09.800> in<00:10:10.000> attention<00:10:11.000> arousal<00:10:11.880> reward including in attention arousal reward including in attention arousal reward and<00:10:13.200> disorders<00:10:14.000> of<00:10:14.120> the<00:10:14.279> dopamine<00:10:14.839> system and disorders of the dopamine system and disorders of the dopamine system have<00:10:15.519> been<00:10:15.640> linked<00:10:15.959> to<00:10:16.079> a<00:10:16.200> number<00:10:16.680> of<00:10:16.839> mental have been linked to a number of mental have been linked to a number of mental disorders<00:10:17.680> including<00:10:18.120> drug<00:10:18.399> abuse disorders including drug abuse disorders including drug abuse Parkinson's<00:10:19.839> disease<00:10:20.560> and Parkinson's disease and Parkinson's disease and ADHD<00:10:23.560> now<00:10:23.760> in<00:10:23.959> genetics<00:10:24.800> it's<00:10:24.920> a<00:10:25.040> little ADHD now in genetics it's a little ADHD now in genetics it's a little counterintuitive<00:10:26.360> we<00:10:26.519> tend<00:10:26.760> to<00:10:27.040> infer<00:10:27.519> the counterintuitive we tend to infer the counterintuitive we tend to infer the normal<00:10:28.399> function<00:10:28.800> of<00:10:28.959> something normal function of something normal function of something by<00:10:30.320> what<00:10:30.800> doesn't<00:10:31.320> happen<00:10:32.040> when<00:10:32.240> we<00:10:32.480> take<00:10:32.640> it by what doesn't happen when we take it by what doesn't happen when we take it away<00:10:33.279> by<00:10:33.440> the<00:10:33.680> opposite<00:10:34.160> of<00:10:34.360> what<00:10:34.480> we<00:10:34.560> see<00:10:34.839> when away by the opposite of what we see when away by the opposite of what we see when we<00:10:35.120> take<00:10:35.279> it<00:10:35.440> away<00:10:36.040> so<00:10:36.360> when<00:10:36.519> we<00:10:36.760> take<00:10:37.000> away<00:10:37.639> the we take it away so when we take away the we take it away so when we take away the dopamine<00:10:38.360> receptor<00:10:39.120> and<00:10:39.240> the<00:10:39.320> Flies<00:10:39.800> take dopamine receptor and the Flies take dopamine receptor and the Flies take longer<00:10:40.600> to<00:10:40.839> calm<00:10:41.200> down<00:10:41.560> from<00:10:41.760> that<00:10:41.959> we<00:10:42.120> infer longer to calm down from that we infer longer to calm down from that we infer that<00:10:42.720> the<00:10:43.000> normal<00:10:43.480> function<00:10:43.839> of<00:10:44.040> this that the normal function of this that the normal function of this receptor<00:10:44.920> and<00:10:45.120> dopamine<00:10:45.839> is<00:10:45.959> to<00:10:46.240> cause<00:10:46.560> the receptor and dopamine is to cause the receptor and dopamine is to cause the Flies<00:10:47.040> to<00:10:47.240> calm<00:10:47.639> down<00:10:48.079> faster<00:10:48.680> after<00:10:48.920> the<00:10:49.120> puff Flies to calm down faster after the puff Flies to calm down faster after the puff and<00:10:50.120> that's<00:10:50.279> a<00:10:50.440> bit<00:10:50.680> reminiscent<00:10:51.600> of<00:10:52.000> ADHD and that's a bit reminiscent of ADHD and that's a bit reminiscent of ADHD which<00:10:53.120> has<00:10:53.320> been<00:10:53.480> linked<00:10:53.800> to<00:10:54.000> disorders<00:10:54.399> of which has been linked to disorders of which has been linked to disorders of the<00:10:54.720> dopamine<00:10:55.240> system<00:10:55.800> in<00:10:56.040> humans<00:10:57.000> indeed<00:10:57.680> if the dopamine system in humans indeed if the dopamine system in humans indeed if we<00:10:58.360> increase<00:10:58.959> the<00:10:59.279> levels<00:10:59.560> of<00:10:59.680> dopamine<00:11:00.240> in we increase the levels of dopamine in we increase the levels of dopamine in normal<00:11:00.880> flies<00:11:01.600> by<00:11:01.720> feeding<00:11:02.120> them<00:11:02.480> cocaine normal flies by feeding them cocaine normal flies by feeding them cocaine after<00:11:03.680> getting<00:11:03.959> the<00:11:04.160> appropriate<00:11:04.720> DEA after getting the appropriate DEA after getting the appropriate DEA license<00:11:06.480> oh<00:11:06.720> my



God<00:11:10.720> we<00:11:10.920> find<00:11:11.240> indeed<00:11:11.639> that<00:11:11.839> these<00:11:12.200> cocaine
God we find indeed that these cocaine God we find indeed that these cocaine fed<00:11:13.000> flies<00:11:13.720> calm<00:11:14.120> down<00:11:14.519> faster<00:11:15.160> than<00:11:15.399> normal fed flies calm down faster than normal fed flies calm down faster than normal flies<00:11:16.040> do<00:11:16.399> and<00:11:16.560> that's<00:11:16.839> also<00:11:17.160> reminiscent<00:11:17.720> of flies do and that's also reminiscent of flies do and that's also reminiscent of ADHD<00:11:19.600> which<00:11:19.720> is<00:11:19.959> often<00:11:20.200> treated<00:11:20.560> with<00:11:20.680> drugs ADHD which is often treated with drugs ADHD which is often treated with drugs like<00:11:21.160> rlin<00:11:22.000> that<00:11:22.200> act<00:11:22.440> similarly<00:11:23.079> to<00:11:23.600> cocaine like rlin that act similarly to cocaine like rlin that act similarly to cocaine so<00:11:24.839> slowly<00:11:25.360> I<00:11:25.519> began<00:11:25.800> to<00:11:26.040> realize<00:11:26.680> that<00:11:26.839> what so slowly I began to realize that what so slowly I began to realize that what started<00:11:27.600> out<00:11:28.000> as<00:11:28.120> a<00:11:28.279> rather<00:11:28.639> playful<00:11:29.320> attempt started out as a rather playful attempt started out as a rather playful attempt to<00:11:29.880> try<00:11:30.040> to<00:11:30.240> annoy<00:11:30.560> fruit<00:11:30.880> flies<00:11:31.600> might to try to annoy fruit flies might to try to annoy fruit flies might actually<00:11:32.240> have<00:11:32.399> some<00:11:32.600> relevance<00:11:33.040> to<00:11:33.160> a<00:11:33.320> human actually have some relevance to a human actually have some relevance to a human psychiatric<00:11:34.360> disorder<00:11:35.360> now<00:11:35.600> how<00:11:35.800> far<00:11:36.000> does psychiatric disorder now how far does psychiatric disorder now how far does this<00:11:36.360> analogy<00:11:36.920> go<00:11:37.680> as<00:11:37.839> many<00:11:38.000> of<00:11:38.160> you<00:11:38.320> know this analogy go as many of you know this analogy go as many of you know individuals<00:11:39.519> Afflicted<00:11:39.959> with<00:11:40.160> ADHD<00:11:41.160> also individuals Afflicted with ADHD also individuals Afflicted with ADHD also have<00:11:41.600> learning<00:11:42.240> disabilities<00:11:43.240> is<00:11:43.440> that<00:11:43.600> true have learning disabilities is that true have learning disabilities is that true of<00:11:43.959> our<00:11:44.160> dopamine<00:11:44.600> receptor<00:11:45.000> mutant of our dopamine receptor mutant of our dopamine receptor mutant flies<00:11:47.399> remarkably<00:11:48.160> the<00:11:48.320> answer<00:11:48.600> is<00:11:48.920> yes<00:11:49.800> as flies remarkably the answer is yes as flies remarkably the answer is yes as Seymour<00:11:50.440> showed<00:11:50.839> back<00:11:50.959> in<00:11:51.079> the<00:11:51.360> 1970s<00:11:52.360> flies Seymour showed back in the 1970s flies Seymour showed back in the 1970s flies like<00:11:53.279> song<00:11:53.519> birds<00:11:53.839> as<00:11:53.959> you<00:11:54.160> just<00:11:54.320> heard<00:11:54.720> are like song birds as you just heard are like song birds as you just heard are capable<00:11:55.360> of<00:11:55.519> learning<00:11:56.279> you<00:11:56.399> can<00:11:56.639> train<00:11:56.959> a<00:11:57.120> fly capable of learning you can train a fly capable of learning you can train a fly to<00:11:58.040> avoid<00:11:58.480> an<00:11:58.680> odor<00:11:59.279> shown<00:11:59.680> here<00:11:59.880> in<00:12:00.120> blue<00:12:00.760> if to avoid an odor shown here in blue if to avoid an odor shown here in blue if you<00:12:01.160> pair<00:12:01.600> that<00:12:01.760> odor<00:12:02.120> with<00:12:02.240> a<00:12:02.399> shock<00:12:03.120> then you pair that odor with a shock then you pair that odor with a shock then when<00:12:03.399> you<00:12:03.600> give<00:12:03.880> those<00:12:04.120> trained<00:12:04.600> flies<00:12:05.279> the when you give those trained flies the when you give those trained flies the chance<00:12:05.800> to<00:12:06.040> choose<00:12:06.519> between<00:12:06.800> a<00:12:06.959> tube<00:12:07.560> with<00:12:07.680> the chance to choose between a tube with the chance to choose between a tube with the shock<00:12:08.160> paired<00:12:08.480> odor<00:12:08.760> and<00:12:08.920> another<00:12:09.240> odor<00:12:09.639> it shock paired odor and another odor it shock paired odor and another odor it avoids<00:12:10.440> the<00:12:10.600> tube<00:12:11.279> containing<00:12:11.680> the<00:12:11.800> blue<00:12:12.040> odor avoids the tube containing the blue odor avoids the tube containing the blue odor that<00:12:12.480> was<00:12:12.639> paired<00:12:13.000> with<00:12:13.160> shock<00:12:13.839> well<00:12:14.000> if<00:12:14.079> you that was paired with shock well if you that was paired with shock well if you do<00:12:14.480> this<00:12:14.720> test<00:12:15.240> on<00:12:15.399> dopamine<00:12:15.839> receptor<00:12:16.279> mutant do this test on dopamine receptor mutant do this test on dopamine receptor mutant flies<00:12:17.440> they<00:12:17.560> don't<00:12:17.800> learn<00:12:18.279> their<00:12:18.440> learning flies they don't learn their learning flies they don't learn their learning score<00:12:19.199> is<00:12:19.440> zero<00:12:20.040> they<00:12:20.199> flunk<00:12:20.560> out<00:12:20.680> of



Caltech<00:12:23.880> now<00:12:24.440> so<00:12:24.639> that<00:12:24.760> means<00:12:25.000> that<00:12:25.240> these
Caltech now so that means that these Caltech now so that means that these flies<00:12:26.480> have<00:12:26.920> two<00:12:27.480> abnormalities<00:12:28.279> or flies have two abnormalities or flies have two abnormalities or phenotypes<00:12:29.240> as<00:12:29.360> we<00:12:29.560> geneticists<00:12:30.360> call<00:12:30.720> them phenotypes as we geneticists call them phenotypes as we geneticists call them that<00:12:32.279> one<00:12:32.480> finds<00:12:32.760> an<00:12:33.160> ADHD<00:12:34.160> hyperactivity<00:12:35.160> and that one finds an ADHD hyperactivity and that one finds an ADHD hyperactivity and learning<00:12:35.839> disability<00:12:36.839> now<00:12:37.079> what's<00:12:37.399> the learning disability now what's the learning disability now what's the causal<00:12:38.199> relationship<00:12:38.839> if<00:12:39.040> anything<00:12:39.480> between causal relationship if anything between causal relationship if anything between these<00:12:40.600> phenotypes<00:12:41.600> in<00:12:41.800> ADHD<00:12:42.519> it's<00:12:42.760> often these phenotypes in ADHD it's often these phenotypes in ADHD it's often assumed<00:12:43.839> that<00:12:43.959> the<00:12:44.399> hyperactivity<00:12:45.399> causes assumed that the hyperactivity causes assumed that the hyperactivity causes the<00:12:45.959> learning<00:12:46.360> disability<00:12:47.279> the<00:12:47.440> kids<00:12:47.720> can't the learning disability the kids can't the learning disability the kids can't sit<00:12:48.160> still<00:12:48.440> long<00:12:48.639> enough<00:12:48.880> to<00:12:49.040> focus<00:12:49.320> so<00:12:49.480> they sit still long enough to focus so they sit still long enough to focus so they don't<00:12:49.880> learn<00:12:50.880> but<00:12:51.120> it<00:12:51.240> could<00:12:51.440> equally<00:12:51.800> be<00:12:52.000> the don't learn but it could equally be the don't learn but it could equally be the case<00:12:52.639> that<00:12:52.760> it's<00:12:52.920> the<00:12:53.160> learning<00:12:53.519> disabilities case that it's the learning disabilities case that it's the learning disabilities that<00:12:54.480> cause<00:12:54.760> the<00:12:54.959> hyperactivity<00:12:55.959> because<00:12:56.199> the that cause the hyperactivity because the that cause the hyperactivity because the C<00:12:56.680> kids<00:12:56.959> can't<00:12:57.160> learn<00:12:57.680> they<00:12:57.800> look<00:12:57.959> for<00:12:58.160> other C kids can't learn they look for other C kids can't learn they look for other things<00:12:58.560> to<00:12:58.720> distract<00:12:59.320> their<00:12:59.480> attention<00:13:00.360> and<00:13:00.480> a things to distract their attention and a things to distract their attention and a final<00:13:01.079> possibility<00:13:01.800> is<00:13:01.920> that<00:13:02.079> there's<00:13:02.360> no final possibility is that there's no final possibility is that there's no relationship<00:13:03.199> at<00:13:03.320> all<00:13:03.560> between<00:13:03.839> learning relationship at all between learning relationship at all between learning disabilities<00:13:05.000> and<00:13:05.199> hyperactivity<00:13:05.959> but<00:13:06.120> that disabilities and hyperactivity but that disabilities and hyperactivity but that they<00:13:06.399> are<00:13:06.720> caused<00:13:07.440> by<00:13:07.959> a<00:13:08.240> common<00:13:08.519> underlying they are caused by a common underlying they are caused by a common underlying mechanism<00:13:09.480> in<00:13:09.839> ADHD<00:13:10.839> now<00:13:11.040> people<00:13:11.240> have<00:13:11.360> been mechanism in ADHD now people have been mechanism in ADHD now people have been wondering<00:13:11.959> about<00:13:12.240> this<00:13:12.360> for<00:13:12.560> a<00:13:12.760> long<00:13:13.079> time<00:13:13.279> in wondering about this for a long time in wondering about this for a long time in humans<00:13:14.160> but<00:13:14.279> in<00:13:14.480> flies<00:13:14.920> we<00:13:15.040> can<00:13:15.320> actually<00:13:15.680> test humans but in flies we can actually test humans but in flies we can actually test this<00:13:16.800> and<00:13:16.920> the<00:13:17.040> way<00:13:17.240> that<00:13:17.360> we<00:13:17.519> do<00:13:17.720> this<00:13:17.880> is<00:13:18.000> to this and the way that we do this is to this and the way that we do this is to delve<00:13:18.680> deeply<00:13:19.040> into<00:13:19.279> the<00:13:19.480> mind<00:13:19.720> of<00:13:19.839> the<00:13:19.959> fly delve deeply into the mind of the fly delve deeply into the mind of the fly and<00:13:20.399> begin<00:13:20.600> to<00:13:20.800> untangle<00:13:21.360> its<00:13:21.519> circuitry and begin to untangle its circuitry and begin to untangle its circuitry using<00:13:23.040> genetics<00:13:24.040> we<00:13:24.240> take<00:13:24.440> our<00:13:24.720> dopamine using genetics we take our dopamine using genetics we take our dopamine receptor<00:13:25.560> mutant<00:13:25.920> flies<00:13:26.800> and<00:13:26.920> we<00:13:27.160> genetically receptor mutant flies and we genetically receptor mutant flies and we genetically restore<00:13:28.800> or<00:13:29.360> cure<00:13:30.079> the<00:13:30.240> dopamine<00:13:30.800> receptor<00:13:31.480> by restore or cure the dopamine receptor by restore or cure the dopamine receptor by putting<00:13:32.000> a<00:13:32.240> good<00:13:32.639> copy<00:13:32.880> of<00:13:33.000> the<00:13:33.160> dopamine putting a good copy of the dopamine putting a good copy of the dopamine receptor<00:13:34.079> Gene<00:13:34.760> back<00:13:35.000> into<00:13:35.240> the<00:13:35.360> fly<00:13:35.760> brain receptor Gene back into the fly brain receptor Gene back into the fly brain but<00:13:36.639> in<00:13:36.839> each<00:13:37.199> fly<00:13:37.600> we<00:13:37.760> put<00:13:37.920> it<00:13:38.160> back<00:13:38.480> only<00:13:38.760> into but in each fly we put it back only into but in each fly we put it back only into certain<00:13:39.519> neurons<00:13:40.240> and<00:13:40.399> not<00:13:40.600> in<00:13:40.839> others<00:13:41.839> and certain neurons and not in others and certain neurons and not in others and then<00:13:42.120> we<00:13:42.320> test<00:13:42.720> each<00:13:42.880> of<00:13:43.120> their<00:13:43.440> these<00:13:43.600> flies then we test each of their these flies then we test each of their these flies for<00:13:44.360> their<00:13:44.600> ability<00:13:45.079> to<00:13:45.199> learn<00:13:45.560> and<00:13:45.680> for for their ability to learn and for for their ability to learn and for hyperactivity<00:13:47.720> remarkably<00:13:48.399> we<00:13:48.519> find<00:13:48.760> we<00:13:48.880> can hyperactivity remarkably we find we can hyperactivity remarkably we find we can completely<00:13:49.680> dissociate<00:13:50.639> these<00:13:50.880> two completely dissociate these two completely dissociate these two abnormalities<00:13:52.600> if<00:13:52.680> we<00:13:52.880> put<00:13:53.079> a<00:13:53.240> good<00:13:53.480> copy<00:13:53.720> of abnormalities if we put a good copy of abnormalities if we put a good copy of the<00:13:53.959> dopamine<00:13:54.440> receptor<00:13:54.959> back<00:13:55.320> in<00:13:55.480> this the dopamine receptor back in this the dopamine receptor back in this elliptical<00:13:56.240> structure<00:13:56.639> called<00:13:56.839> the<00:13:56.959> central elliptical structure called the central elliptical structure called the central complex<00:13:58.040> the<00:13:58.160> Flies<00:13:58.480> are<00:13:58.639> no<00:13:58.759> longer<00:13:59.120> are complex the Flies are no longer are complex the Flies are no longer are hyperactive<00:14:00.199> but<00:14:00.320> they<00:14:00.480> still<00:14:00.759> can't<00:14:01.040> learn hyperactive but they still can't learn hyperactive but they still can't learn on<00:14:02.160> the<00:14:02.320> other<00:14:02.480> hand<00:14:02.680> if<00:14:02.800> we<00:14:02.959> put<00:14:03.120> the<00:14:03.240> receptor on the other hand if we put the receptor on the other hand if we put the receptor back<00:14:03.839> in<00:14:03.959> a<00:14:04.120> different<00:14:04.399> structure<00:14:04.839> called<00:14:05.240> the back in a different structure called the back in a different structure called the mushroom<00:14:05.920> body<00:14:06.600> the<00:14:06.720> learning<00:14:07.240> deficit<00:14:07.600> is mushroom body the learning deficit is mushroom body the learning deficit is rescued<00:14:08.279> the<00:14:08.360> Flies<00:14:08.639> learn<00:14:09.000> well<00:14:09.399> but<00:14:09.519> they're rescued the Flies learn well but they're rescued the Flies learn well but they're still<00:14:10.480> hyperactive<00:14:11.480> what<00:14:11.720> that<00:14:11.920> tells<00:14:12.240> us<00:14:12.600> is still hyperactive what that tells us is still hyperactive what that tells us is that<00:14:12.959> dopamine<00:14:13.759> is<00:14:13.920> not<00:14:14.199> bathing<00:14:14.720> the<00:14:14.839> brain that dopamine is not bathing the brain that dopamine is not bathing the brain of<00:14:15.360> these<00:14:15.560> flies<00:14:16.000> like<00:14:16.240> soup<00:14:17.000> rather<00:14:17.440> it's of these flies like soup rather it's of these flies like soup rather it's acting<00:14:17.959> to<00:14:18.199> control<00:14:18.800> two<00:14:19.040> different acting to control two different acting to control two different functions<00:14:20.320> on<00:14:20.560> two<00:14:20.800> different<00:14:21.120> circuits<00:14:21.720> so functions on two different circuits so functions on two different circuits so the<00:14:22.120> reason<00:14:22.440> there<00:14:22.560> are<00:14:22.759> two<00:14:23.079> things<00:14:23.399> wrong the reason there are two things wrong the reason there are two things wrong with<00:14:24.040> our<00:14:24.240> dopamine<00:14:24.759> receptor<00:14:25.120> fly<00:14:25.480> is<00:14:25.600> that with our dopamine receptor fly is that with our dopamine receptor fly is that the<00:14:26.040> same<00:14:26.720> receptor<00:14:27.480> is<00:14:27.680> controlling<00:14:28.360> two the same receptor is controlling two the same receptor is controlling two different<00:14:29.160> functions<00:14:29.759> in<00:14:29.959> two<00:14:30.199> different different functions in two different different functions in two different regions<00:14:30.839> of<00:14:30.959> the regions of the regions of the brain<00:14:32.720> whether<00:14:33.000> the<00:14:33.160> same<00:14:33.440> thing<00:14:33.600> is<00:14:33.800> true<00:14:34.040> in brain whether the same thing is true in brain whether the same thing is true in ADHD<00:14:34.839> and<00:14:35.079> humans<00:14:35.880> we<00:14:36.040> don't<00:14:36.320> know<00:14:36.720> but<00:14:36.920> these ADHD and humans we don't know but these ADHD and humans we don't know but these kinds<00:14:37.320> of<00:14:37.519> results<00:14:38.000> should<00:14:38.240> at<00:14:38.360> least<00:14:38.759> cause kinds of results should at least cause kinds of results should at least cause us<00:14:39.199> to<00:14:39.399> consider<00:14:39.880> that<00:14:40.639> possibility<00:14:41.639> so<00:14:41.880> these us to consider that possibility so these us to consider that possibility so these results<00:14:42.759> make<00:14:42.959> me<00:14:43.120> and<00:14:43.279> my<00:14:43.519> colleagues<00:14:44.199> more results make me and my colleagues more results make me and my colleagues more convinced<00:14:44.880> than<00:14:45.120> ever<00:14:45.639> that<00:14:45.800> the<00:14:46.279> brain<00:14:46.600> is convinced than ever that the brain is convinced than ever that the brain is not<00:14:46.920> a<00:14:47.160> bag<00:14:47.519> of<00:14:47.759> chemical<00:14:48.160> soup<00:14:48.959> and<00:14:49.079> it's<00:14:49.240> a not a bag of chemical soup and it's a not a bag of chemical soup and it's a mistake<00:14:49.800> to<00:14:50.000> try<00:14:50.160> to<00:14:50.360> treat<00:14:50.759> complex mistake to try to treat complex mistake to try to treat complex psychiatric<00:14:51.959> disorders<00:14:52.720> just<00:14:52.920> by<00:14:53.160> changing psychiatric disorders just by changing psychiatric disorders just by changing the<00:14:53.720> flavor<00:14:54.079> of<00:14:54.199> the<00:14:54.360> soup<00:14:55.279> what<00:14:55.399> we<00:14:55.519> need<00:14:55.639> to the flavor of the soup what we need to the flavor of the soup what we need to do<00:14:55.959> is<00:14:56.079> to<00:14:56.279> use<00:14:56.680> our<00:14:56.920> Ingenuity<00:14:57.880> and<00:14:58.040> our do is to use our Ingenuity and our do is to use our Ingenuity and our scientific<00:14:58.759> knowledge<00:14:59.040> know<00:14:59.440> to<00:14:59.600> try<00:14:59.759> to scientific knowledge know to try to scientific knowledge know to try to design<00:15:00.399> a<00:15:00.560> new<00:15:00.800> generation<00:15:01.320> of<00:15:01.519> treatments design a new generation of treatments design a new generation of treatments that<00:15:02.279> are<00:15:02.600> targeted<00:15:03.320> to<00:15:03.639> specific<00:15:04.160> neurons that are targeted to specific neurons that are targeted to specific neurons and<00:15:04.880> specific<00:15:05.320> regions<00:15:05.680> of<00:15:05.800> the<00:15:05.959> brain<00:15:06.480> that and specific regions of the brain that and specific regions of the brain that are<00:15:06.800> affected<00:15:07.399> in<00:15:07.600> particular<00:15:08.079> psychiatric are affected in particular psychiatric are affected in particular psychiatric disorders<00:15:09.720> if<00:15:09.839> we<00:15:09.959> can<00:15:10.160> do<00:15:10.480> that<00:15:10.880> we<00:15:11.000> may<00:15:11.199> be disorders if we can do that we may be disorders if we can do that we may be able<00:15:11.519> to<00:15:11.759> cure<00:15:12.079> these<00:15:12.320> disorders<00:15:13.000> without<00:15:13.279> the able to cure these disorders without the able to cure these disorders without the unpleasant<00:15:14.079> side<00:15:14.320> effects<00:15:15.040> putting<00:15:15.320> the<00:15:15.480> oil unpleasant side effects putting the oil unpleasant side effects putting the oil back<00:15:16.240> in<00:15:16.360> our<00:15:16.560> metal<00:15:17.040> engines<00:15:17.800> just<00:15:18.000> where back in our metal engines just where back in our metal engines just where it's<00:15:18.399> needed<00:15:19.120> thank<00:15:19.279> you<00:15:19.440> very<00:15:19.639> much

brain, mind, psychiatry, psychiatric, drugs, chemistry, neurology, neurobilogy, TED-Ed, TED, Ed, TEDEducation

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