Neurons that play truth or consequences

e ACC of macaque monkeys as the animals performed a task that required self-control. Macaques serve as the primary animal model for higher cognitive function.

The monkeys were trained to look at a visual target displayed in different positions on a computer screen, unless they received a stop signal. They were taught not to look at the target after receiving such a signal. The monkeys' eye movements were tracked with enough precision so that they could be correlated with neuronal activity. The monkeys were trained by rewarding them with squirts of juice when they correctly followed instructions.

By requiring the monkeys to inhibit a movement after their brain had begun preparing to execute it, Schall and his colleagues created situations that isolated different types of neural signals. By recording in the ACC while the monkeys responded to these situations, the researchers successfully identified neurons that signaled discrepancies between intentions and actions, what the researchers refer to as errors.

"The elegance of this paper is that they were able to sort out different cognitive components or behavioral components that might be driving neural activity in the cingulate," says Tomas Paus of McGill University, a neuroscientist who was not involved in the study but also investigates this part of the brain.

This methodology allowed the researchers to determine whether activity in the anterior cingulate signaled that the action deviated from what the monkey had intended or signaled that the consequences of the action differed from what he anticipated. "We had a few trials where he did the right movement but we didn't give him juice. We found that many of these neurons also fired following the absence of reinforcement," says Schall. In these trials the monkey's action was correct but the consequence was unexpected. If the ACC were monitoring the actions alone, the neurons would not have responded.

The researchers also found that there was an

Contact: David F. Salisbury
Vanderbilt University

Page: 1 2 3 4

Related medicine news :

1. Neurons so excited that they just cant hide it
2. Do Neurons Learn By Growing Thorns? Emergence Of Dendritic Spines Is Associated With Long-Term Synaptic Plasticity
3. Teen athletes continue tobacco use, despite severe consequences
4. Study examines consequences of Thailands war on drugs
5. Studies examine risk factors and potential consequences associated with prehypertension
6. Survey of adults reveals life-long consequences of ADHD
7. 33-year study emphasizes lethal consequences of heroin addiction

Post Your Comments:

(Date:8/31/2020)... ... , ... Just found out your dear friend has cancer? , It’s hard to hear your ... shares their diagnosis. Once the shock wears off, the questions and fears can be overwhelming. ... best ways to help? Words are failing me. I’m scared. I want to DO something. ...
(Date:8/31/2020)... ... August 31, 2020 , ... Colorado State University Global (CSU ... affordable online education – is proud to announce its new master’s degree in ... its kind in the nation, the 60-credit hour program is designed to provide ...
(Date:8/31/2020)... ... August 31, 2020 , ... In an effort to give back to ... 10 percent of each hotel room booked with a special new rate code to ... Indiana (RMHC-CNI) , effective immediately. Donations will be applied to any room type, ...
(Date:8/28/2020)... ... 28, 2020 , ... Ernst & Young LLP (EY US) ... Of The Year® 2020 Florida Award finalist. Now in its 34th year, the ... growth and prosperity as they build and sustain successful businesses that transform our ...
(Date:8/28/2020)... (PRWEB) , ... August 28, 2020 , ... Integrated ... Miami is the first Florida school to deploy its breakthrough Mobile Biodefense Indoor Air ... airborne COVID-19. True North Classical Academy plans to fully reopen equipped with the filtration ...
Breaking Medicine News(10 mins):
(Date:9/1/2020)... ... September 01, 2020 , ... While coronavirus cases continue to increase across ... and community organizations remain closed. Because about 80% of blood donations are made at ... blood donors and blood drive hosts to ensure blood products are readily available for ...
(Date:8/31/2020)... (PRWEB) , ... August 31, 2020 , ... If you live in New York City ... real estate part makes sense, it’s the law of supply and demand, but are plastic ... has a significant percentage of their patients that make the four-hour trip to have ...
(Date:8/28/2020)... (PRWEB) , ... August 28, 2020 , ... Dr. ... reproductive and endoscopic surgeon and serves as a clinical professor in the Department of ... of the American Laparoscopy Society & Pacific Coast Reproductive Society and is a Clinical ...
Breaking Medicine Technology:
Cached News: