recentpopularlog in

brain

« earlier   
Some Philosophical Implications of Neuroeconomics - National Research University Higher School of Economics | Coursera
Libet Experiment - The illusion of freedom. el cerebro había dado la orden de hacer algo, aproximadamente 200 ms antes de que fuéramos conscientes de ello, es decir, no elige la persona consciente... lo que llevaría a q las personas en realidad, no decidimos, sino que si somos conscientes, lo que nos corresponde es revisar las decisiones que ya ha tomado nuestro cerebro y decidir si las aceptamos o no...

Guardar nota
Discutir
Descargar
!important  !video  brain  neuroeconomics 
4 hours ago by david.garciahz
The Scope of Neuroeconomics - National Research University Higher School of Economics | Coursera
Video con dos experimentos:
#1 Sujetos racionales
Ejemplo que muestra que las personas no son racionales en el sentido que lo pretenden las bases de la economía, porque la ganancia racional, en este ejemplo, no es el único factor, y en este caso, a partir del pto en que una parte se siente injustamente engañada, deja de dominar la racionalidad.
#2 Trust Game. Ejemplo que refleja un juego de behavioral economics y como la cantidad de oxitocina, afecta claramente al comportamiento llevándonos a tomar más riesgo del habitual.
brain  neuroeconomics  !video  !interesante 
4 hours ago by david.garciahz
Silencing brain cells in mice can make them no longer care about pain | New Scientist
Pain doesn’t have to be painful. That’s the conclusion of a study that identified a set of nerve cells that add emotional content to pain signals in the brains of mice.

The discovery could lead to new treatments for chronic pain that ease patients’ suffering without impairing their ability to sense injuries.

Pain receptors throughout the body detect painful stimuli and send signals via nerves to the brain. But according to Grégory Scherrer at Stanford University, California, these signals don’t have any emotional value until they reach the amygdala, a brain region that deals with emotions. In other words, the unpleasantness of pain is added by the amygdala and is separate to the information that comes from pain receptors.


To see how pain signals are processed in the amygdala, Scherrer and his colleagues added a gene to this region of the brain to make the cells produce a marker that lights up when they are active. The team then identified a group of cells that respond specifically to painful stimuli such as a pin prick or heat.

Read more: How to hack your unconscious… to take control of pain
Next, they silenced these cells by engineering them to express receptors for a drug that turns down their activity. The mice could still detect painful stimuli and withdraw from them, just as you would withdraw your hand if you touched a hot stove.

But they didn’t adopt defensive behaviours, lick their wounds or try to escape as could be normally expected. “It’s as if they don’t care about pain any more, even though they can detect it,” says Scherrer.

The neural circuits for pain have a high degree of similarity across species, so it’s likely that a similar set of cells can be found in humans, says Scherrer. “We’re hoping it’s a new avenue to treat pain,” he says.

New pain drugs are badly needed to replace opioids, which have caused an addiction epidemic in the US that kills 130 people every day. Opioids also don’t normally work for people with damage to their nerve fibres,which can happen as a result of cancer or diabetes.

In mice with nerve injuries, the pain neurons in the amygdala were triggered even by gentle touch. Scherrer plans to look for receptors that are only present on these cells, so that a drug can be developed that targets them specifically.

Journal reference: Science, DOI: 10.1126/science.aap8586
HealthCare  brain 
15 hours ago by cnk
The Cerebellum Is Your "Little Brain"—and It Does Some Pretty Big Things - Scientific American
Scientific American is the essential guide to the most awe-inspiring advances in science and technology, explaining how they change our understanding of the world and shape our lives.
brain 
17 hours ago by geetarista
Our Team – The Tiny Blue Dot Foundation
Elizabeth Koch is the co-founder of Tiny Blue Dot consciousness research foundation. She is co-founder and CEO of Catapult, a publishing company and writers’ community that uses extraordinary storytelling as a means of catalyzing empathy.
brain  consciousness  foundations  curiosity  storytelling 
18 hours ago by GreggInCA
Grabbing Visual Attention With The Visual Cortex — Smashing Magazine
Given the way our brains work, there are things you can do that will grab your user’s visual attention. In this article, Susan Weinschenk explains how the visual cortex of our brains plays a vital role in controlling our behavior.
Design  Attention  Brain  Interesting  LandingPages 
yesterday by gregg
Arrowsmith School
Barbara Arrowsmith Young
from: (Doidge, 2007).

Arrowsmith Program® Questionnaire
Cognitive Learning Profile Report
https://www.brainex.net/protoQuest/relevance.html?q=AY669176
neuro  plasticity  ABA  brain 
yesterday by Cloudwalker
How Dogs Love Us Dr. Gregory Berns
re brain plasticity
Arrowsmith School, Toronto
brain  dog 
yesterday by Cloudwalker

Copy this bookmark:





to read