Tuesday, April 25, 2006

This synapse would like a cheeseburger, please

According to Reuters, researchers at Harvard Medical School have found neurons responsible for choice:

The scientists, who reported the findings in the journal Nature, located the neurons in an area of the brain known as the orbitofrontal cortex (OFC) while studying macaque monkeys which had to choose between different flavors and quantities of juices.

They correlated the animals' choices with the activity of neurons in the OFC with the valued assigned to the different types of juices. Some neurons would be highly active when the monkeys selected three drops of grape juice, for example, or 10 drops of apple juice.

Other neurons encoded the value of only the orange juice or grape juice.

"The monkey's choice may be based on the activity of these neurons," said Padoa-Schioppa.

Earlier research involving the OFC showed that lesions in the area seem to have an association with eating disorders, compulsive gambling and unusual social behavior.

This seems to raise as many questions as it answers: what other types of choices are these neurons involved in? For example, is this population of cells just involved in food-related choices, or involved in expression of overall preferences, or simply in making comparisons? Are these neurons actually making the decisions, or are they sending some sort of "preference" value to another location that makes the decisions?

I imagine many of these are probably addressed in the Nature article. I'll try to make some time later in the week to look it over, but Magic Eight-Ball tell me "yeah, right, sucker."

I should also point out that this is made doubly interesting by the fact that I vaguely recall OFC playing an uncertain role in drug addiction. Of course, that may be more uncertain to me than to others. But this makes it clear that I have another structure I need to pay attention to in reference to reward and decision-making pathways... I suspect that as time approaches infinity, the number of structures I'll need to pay attention to similarly approaches infinity.

Wow, that's a lot of brain.


At 30 October, 2015 00:39, Blogger ninest123 Ninest said...

ninest123 10.30
longchamp, gucci outlet, oakley sunglasses, michael kors outlet, ugg boots, cheap oakley sunglasses, michael kors outlet, kate spade outlet, oakley sunglasses, nike outlet, prada handbags, polo ralph lauren outlet, ray ban sunglasses, christian louboutin outlet, replica watches, longchamp outlet, kate spade handbags, tiffany jewelry, ugg boots, prada outlet, louis vuitton outlet, chanel handbags, michael kors, louboutin, coach outlet, nike free, polo ralph lauren outlet, louis vuitton, jordan shoes, tory burch outlet, longchamp outlet, michael kors outlet, replica watches, tiffany and co, michael kors outlet, oakley sunglasses, burberry, nike air max, louis vuitton, ugg boots, burberry outlet online, oakley sunglasses, michael kors outlet, ray ban sunglasses, louis vuitton, louboutin outlet, ray ban sunglasses, louis vuitton outlet, louboutin shoes

At 30 October, 2015 00:42, Blogger ninest123 Ninest said...

lacoste pas cher, abercrombie and fitch, vanessa bruno, sac guess, ray ban pas cher, nike free, nike huarache, nike roshe run, michael kors, hermes, new balance pas cher, converse pas cher, tn pas cher, timberland, longchamp, lululemon, ralph lauren pas cher, hollister, hollister, ray ban uk, air force, north face, nike roshe, air max, hollister pas cher, coach factory outlet, hogan, nike air max, vans pas cher, north face, longchamp pas cher, true religion outlet, nike free run uk, sac longchamp, michael kors, nike blazer, louboutin pas cher, air jordan pas cher, michael kors, oakley pas cher, nike air max, true religion jeans, ralph lauren uk, michael kors, nike trainers, nike air max, true religion jeans, mulberry, true religion jeans, coach purses, burberry

At 30 October, 2015 00:46, Blogger ninest123 Ninest said...

reebok shoes, soccer shoes, ferragamo shoes, oakley, ray ban, louboutin, beats by dre, valentino shoes, iphone 6s plus cases, mont blanc, herve leger, bottega veneta, asics running shoes, nike air max, north face outlet, ghd, hollister, ralph lauren, chi flat iron, s5 cases, nfl jerseys, new balance, lululemon, vans, nike roshe, iphone 5s cases, iphone cases, baseball bats, ipad cases, vans shoes, mcm handbags, iphone 6 plus cases, instyler, p90x workout, gucci, babyliss, soccer jerseys, timberland boots, birkin bag, celine handbags, insanity workout, iphone 6 cases, abercrombie and fitch, jimmy choo shoes, iphone 6s cases, wedding dresses, converse, mac cosmetics, hollister, north face outlet, nike air max, giuseppe zanotti, coach outlet

At 30 October, 2015 00:50, Blogger ninest123 Ninest said...

doke gabbana outlet, canada goose uk, thomas sabo, converse outlet, canada goose outlet, moncler, moncler outlet, swarovski, moncler, canada goose, doudoune canada goose, supra shoes, bottes ugg, pandora charms, moncler, links of london, hollister, juicy couture outlet, ugg pas cher, replica watches, karen millen, ugg,ugg australia,ugg italia, pandora charms, pandora jewelry, montre pas cher, louis vuitton, toms shoes, sac louis vuitton pas cher, canada goose, marc jacobs, coach outlet, michael kors outlet, michael kors handbags, lancel, canada goose outlet, juicy couture outlet, moncler, louis vuitton, wedding dresses, moncler, moncler, swarovski crystal, michael kors outlet online, louis vuitton, canada goose, barbour jackets, ugg,uggs,uggs canada, ugg boots uk, louis vuitton, pandora jewelry, moncler
ninest123 10.30


Post a Comment

Links to this post:

Create a Link

Send Haloscan trackback ping

<< Home

Academics Blog Top Sites