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These Fighting Fruit Flies Are Superheroes of Brain Science | Deep Look

user45
14 vistas · 6 años hace

Thanks to The Great Courses Plus for sponsoring this episode of Deep Look. Try a 30 day trial of The Great Course Plus at http://ow.ly/7QYH309wSOL. If you liked this episode, you might be interested in their course “Major Transitions in Evolution”.

POW! BAM! Fruit flies battling like martial arts masters are helping scientists map brain circuits. This research could shed light on human aggression and depression.

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Neuroscientist Eric Hoopfer likes to watch animals fight. But these aren’t the kind of fights that could get him arrested – no roosters or pit bulls are involved.

Hoopfer watches fruit flies.

The tiny insects are the size of a pinhead, with big red eyes and iridescent wings. You’ve probably only seen them flying around an overripe piece of fruit.

At the California Institute of Technology, in Pasadena, Hoopfer places pairs of male fruit flies in tiny glass chambers. When they start fighting, they look like martial arts practitioners: They stand face to face and tip each other over; they lunge, roll around and even toss each other, sumo-wrestler style.

But this isn’t about entertainment. Hoopfer is trying to understand how the brain works.

When the aggressive fruit flies at Caltech fight, Hoopfer and his colleagues monitor what parts of their brains the flies are using. The researchers can see clusters of neurons lighting up. In the future, they hope this can help our understanding of conditions that tap into human emotional states, like depression or addiction.

“Flies when they fight, they fight at different intensities. And once they start fighting they continue fighting for a while; this state persists. These are all things that are similar to (human) emotional states,” said Hoopfer. “For example, there’s this scale of emotions where you can be a little bit annoyed and that can scale up to being very angry. If somebody cuts you off in traffic you might get angry and that lasts for a little while. So your emotion lasts longer than the initial stimulus.”

Circuits in our brains that make us stay mad, for example, could hold the key to developing better treatments for mental illness.

“All these neuro-psychiatric disorders, like depression, addiction, schizophrenia, the drugs that we have to treat them, we don’t really understand exactly how they are acting at the level of circuits in the brain,” said Hoopfer. “They help in some cases the symptoms that you want to treat. But they also cause a lot of side effects. So what we’d ideally like are drugs that can act on the specific neurons and circuits in the brain that are responsible for depression and for the symptoms of depression that we want to treat, and not ones that control other things.”

--- What do fruit flies eat?
In the lab, researchers feed fruit flies yeast and apple juice.

--- How do I get rid of fruit flies in my house?
Fruit flies are attracted to ripe fruit and vegetables.

---+ Read the entire article on KQED Science:
https://ww2.kqed.org/science/2....017/03/28/these-figh

---+ For more information:

The David Anderson Lab at Caltech:
https://davidandersonlab.caltech.edu/
---+ More Great Deep Look episodes:

How Mosquitoes Use Six Needles to Suck Your Blood
https://www.youtube.com/watch?v=rD8SmacBUcU
Meet the Dust Mites, Tiny Roommates That Feast On Your Skin
https://www.youtube.com/watch?v=ACrLMtPyRM0

---+ See some great videos and documentaries from the PBS Digital Studios!

It’s Okay To Be Smart: Why Your Brain Is In Your Head
https://www.youtube.com/watch?v=qdNE4WygyAk
BrainCraft: Can You Solve This Dilemma?
https://www.youtube.com/watch?v=9xHKxrc0PHg

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---+ About KQED

KQED, an NPR and PBS affiliate in San Francisco, California, serves Northern California and beyond with a public-supported alternative to commercial TV, radio and web media.

Funding for Deep Look is provided in part by PBS Digital Studios and the John S. and James L. Knight Foundation. Deep Look is a project of KQED Science, which is also supported by HopeLab, the S. D. Bechtel, Jr. Foundation, the Dirk and Charlene Kabcenell Foundation, the Vadasz Family Foundation, the Gordon and Betty Moore Foundation, the Smart Family Foundation and the members of KQED.
#deeplook

4 santos católicos que te enseñan a vencer al demonio

user40
14 vistas · 6 años hace

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Mi Alma se Regocija en Dios (Lucas 1) | Athenas & Tobías Buteler

user40
14 vistas · 6 años hace

Adviento - Domingo III (Ciclo B)

SALMO Lc 1, 46-48. 49-50. 53-54

D A Bm G
R. Mi alma se regocija en mi Dios.

D A
Mi alma canta la grandeza del Señor,
G D
y mi espíritu se estremece de gozo en Dios, mi Salvador,
D A
porque el miró con bondad la pequeñez de su servidora.
G D
En adelante todas las generaciones me llamarán feliz. R.

Porque el Todopoderoso ha hecho en mí grandes cosas:
su Nombre es santo!
Su misericordia se extiende de generación en generación
sobre aquellos que lo temen. R.

Colmó de bienes a los hambrientos
y despidió a los ricos con las manos vacías.
Socorrió a Israel, su servidor,
acordándose de su misericordia. R.

______________________________

Athenas - Voz y Composición
Tobías Buteler - Piano y Composición
Francesco Mazza - Producción musical

Buenos Aires 2017

La palabra se hizo carne (Salmo 147) | Athenas & Tobías Buteler

user40
14 vistas · 6 años hace

Domingo II después de Navidad

SALMO 147, 12-15. 19-20

A E
R. La Palabra se hizo carne y habitó entre nosotros.

A
¡Glorifica al Señor, Jerusalén,
B C#m
alaba a tu Dios, Sión!
A
Él reforzó los cerrojos de tus puertas
B C#m
y bendijo a tus hijos dentro de ti. R.

El asegura la paz en tus fronteras
y te sacia con lo mejor del trigo.
Envía su mensaje a la tierra,
su palabra corre velozmente. R.

Revela su palabra a Jacob,
sus preceptos y mandatos a Israel:
a ningún otro pueblo trató así
ni le dio a conocer sus mandamientos. R.

Athenas - Voz y composición
Tobías Buteler - Piano y Composición
Francesco Mazza - Producción Musical

Feliz quien ama al Señor (Salmo 127) | Athenas & Tobías Buteler

user40
14 vistas · 6 años hace

Tiempo Ordinario, Domingo XXXIII (Ciclo A)

SALMO Sal 127, 1-5 (R.: cf. 1a)

C F Am G
R. ¡Feliz quien ama al Señor!

C Am
¡Feliz el que teme al Señor
F G
y sigue sus caminos!
C Am
Comerás del fruto de tu trabajo,
F G
serás feliz y todo te irá bien. R.

Tu esposa será como una vid fecunda
en el seno de tu hogar;
tus hijos, como retoños de olivo
alrededor de tu mesa. R.

¡Así será bendecido el hombre que teme al Señor!
¡Que el Señor te bendiga desde Sión
todos los días de tu vida:
que contemples la paz de Jerusalén! R.

Athenas - Voz y Composición
Tobías Buteler - Piano y Composición
Francesco Mazza - Producción musical

Buenos Aires 2017

Nada es imposible Hermana Glenda

user40
14 vistas · 6 años hace

BMW - Caravelli - La Colegiala

user40
14 vistas · 6 años hace

BMW - Caravelli - La Colegiala

01- Porque Te Vas
02- L'Italiano
03- La Colegiala
04- Les Marionnettes
05- IL Tape Sur Des Bambous
06- Le Prix des Allumettes
07- El Cumbanchero
08- Borriquito
09- Taka Taka Ta
10- Reverie
11- Elsa
12- Ma Jeunesse Fout Le Camp

Limahl - Neverending Story

user42
14 vistas · 6 años hace

https://www.facebook.com/MusicHitsPop

Kajagoogoo - Turn Your Back On Me (Official Music Video)

user42
14 vistas · 6 años hace

You're watching the official music video for Kajagoogoo - "Turn Your Back On Me" from the 1984 album 'Islands'. After Kajagoogoo, former lead singer Limahl went on to score a hit with "The Never Ending Story", which was recently featured in Stranger Things Season 3!

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The Lion's Mouth

user42
14 vistas · 6 años hace

Provided to YouTube by Parlophone UK

The Lion's Mouth · Kajagoogoo

Too Shy-The Singles... And More

℗ 1984 Parlophone Records Ltd. A Warner Music Group Company

Producer: Colin Thurston
Producer, Vocals: Kajagoogoo
Composer: Jeremy Strode
Composer: Nick Beggs
Composer: Steve Askew
Composer: Stuart Neale

Auto-generated by YouTube.

Sai Yoshua Papi Julio Mama Felicia Familia Rodriguez Misa de fin de Año 2019

admin
14 vistas · 6 años hace

Sai Yoshua Papi Julio Mama Felicia Familia Rodriguez Misa de fin de Año 2019

Kitaro - Silver Moon

user42
14 vistas · 6 años hace

Song: Silver Moon
Artist: Kitaro
Album: Best of Kitaro
Year: 1985

Credits:
Composed By – Kitaro
Design – Takashi Inui
Executive-Producer – Kimio Ariumi, Moko Nanri
Illustration – Koichi Kubodera
Producer – Takayo Nanri
Typography – Irmgard Voigt