Navigation Links
The brain's executive is an 'event planner'

Studies in which monkeys were asked to manipulate computer cursors for fruit juice rewards have revealed that the brain's "executive" center plans behaviors not by specifying movements required for given actions, but rather the events that will result from those actions.

The distinction is significant, said the researchers, because it yields new basic insight into a central function of behavioral planning in this higher brain region, called the lateral prefrontal cortex (PFC).

The researchers, led by Hajime Mushiake of Tohoku University School of Medicine, reported their findings in the May 18, 2006, issue of Neuron. They concentrated on a brain region called the lateral prefrontal cortex (PFC), which many studies have shown to be involved in such higher brain functions as planning. However, noted the researchers, few studies have analyzed the specific nature of the behaviors that are planned.

"To achieve a behavioral goal in daily life, we often need to plan multiple steps of motor behavior that involve selection of a series of actions," wrote the researchers. "The question arises: how are individual neurons within the PFC involved in the planning of multistep behaviors? More specifically, does the activity of PFC neurons during the process of planning reflect the multiple movements required during future actions or the individual future events that occur as a result of the actions?"

To study the detailed activity of neurons in the lateral PFC during planning, the researchers fitted monkeys with recording electrodes that could measure activity in the region's neurons.

They then taught the monkeys to perform a complex task in which the animals were required to manipulate joysticks to move a cursor on a computer screen from a starting point to a goal. Importantly, the researchers required the monkeys to maneuver the cursor within a maze to reach the goal and to perform those maneuvers in a discrete stepwise fashion with pauses
'"/>

Source:Cell Press


Page: 1 2

Related biology news :

1. NYU study reveals how brains immune system fights viral encephalitis
2. Deep sleep short-circuits brains grid of connectivity
3. Thinking the pain away? Study shows the brains painkillers may cause placebo effect
4. Endocannabinoids ?the brains cannabis ?demonstrate novel modes of action to stress
5. Animal models show that anabolic steroids flip the adolescent brains switch for aggression
6. Both alcoholism and chronic smoking can damage the brains prefrontal cortex
7. Tiny RNA molecules fine-tune the brains synapses
8. Aggression-related gene weakens brains impulse control circuits
9. Oops! Researchers publish new findings on the brains response to costly mistakes
10. Flick of whiskers helps tease out brains shadow signaling system
11. The brains motivation station
Post Your Comments:
*Name:
*Comment:
*Email:
TAG: The brain executive event planner

(Date:4/23/2014)... contribute to early fetal death according to a new ... Children,s Hospital Los Angeles and Ulaanbaatar, Mongolia the ... paper published today in the journal BMC Pregnancy ... between seasonal ambient air pollutants and pregnancy loss in ... the highest levels of air pollution of all world ...
(Date:4/23/2014)... Like a hungry diner ripping open a dinner roll, ... must tear open a hydrogen molecule. Now researchers have ... the two halves of its hydrogen feast. The view ... make the catalyst work better for alternative energy uses. ... shown precisely where the hydrogen halves end up in ...
(Date:4/23/2014)... research shows that male black widow spiders prefer their ... example of mate preference by male spiders. ... and Maydianne Andrade, a professor in UTSC,s Department of ... the wild that males overwhelmingly chose to mate with ... can tell whether a potential mate is well-fed and ...
Breaking Biology News(10 mins):Pollutants from coal-burning stoves strongly associated with miscarriages in Mongolia 2Halving hydrogen 2Halving hydrogen 3Halving hydrogen 4Picky male black widow spiders prefer well-fed virgins 2
... Nadeau, PhD, of Case Western Reserve University School of ... (NIH) Director,s Pioneer Award. One of 17 ... investigate transgenerational genetic effects, where the biological features and ... depend as much on the genetics of ancestral generations ...
... A 15-year experiment in an outdoor "laboratory" on Ohio ... just as many, if not more, ecological services as will ... been comparing the behavior of two experimental marshes on the ... and another that was left to colonize plant and animal ...
... in Spanish . A beneficial yeast that ... the fungal culprit behind Fusarium head blight ("scab"). U.S. ... isolated an improved variant of the yeast Cryptococcus flavescens ... as a biocontrol agent. In susceptible wheat and ...
Cached Biology News:Case Western Reserve geneticist receives prestigious NIH Director's Pioneer Award 2Planted, unplanted man-made wetlands are similar at year 15, and function as effective carbon sinks 2Planted, unplanted man-made wetlands are similar at year 15, and function as effective carbon sinks 3Planted, unplanted man-made wetlands are similar at year 15, and function as effective carbon sinks 4Flower-dwelling yeast licensed for use against scab disease 2
(Date:1/14/2014)... 14, 2014 EquitiesIQ, a leading informational ... ALQA). Alliqua is an emerging biomedical company acquiring, developing, ... care market. , Free report download: http://equitiesiq.com/reports/alliqua/ ... seasoned management team and Board, which launched the company’s ...
(Date:1/14/2014)... BETHESDA, Md. , Jan. 14, 2014  Organovo ... institutes from the National Institutes of Health (NIH) to ... more effective treatments to patients on a faster timeline. ... Translational Sciences (NCATS) and the National Eye Institute (NEI) ...
(Date:1/14/2014)... 2014 In recent years, growing suspicion ... in product development and promotion has led to unprecedented ... fueled by concerns about the insidious impact of commercialization ... spectacular fines to the world’s biggest pharmas for illegal ...
(Date:1/14/2014)... Rockville, MD (PRWEB) January 14, 2014 ... dedicated to developing innovative information technology solutions for ... other health care stakeholders, announced today the signing ... the US Food and Drug Administration (FDA). ...
Breaking Biology Technology:EquitiesIQ Initiates Coverage of Alliqua, Inc. 2EquitiesIQ Initiates Coverage of Alliqua, Inc. 3Organovo Announces Collaboration with National Institutes of Health 2Organovo Announces Collaboration with National Institutes of Health 3The Sunshine Act: Necessary Regulation or Unnecessary Dysregulation? New Life Science Webinar Hosted by Xtalks and IRB Services 2The Sunshine Act: Necessary Regulation or Unnecessary Dysregulation? New Life Science Webinar Hosted by Xtalks and IRB Services 3Global Record Systems Announces Research Collaboration Agreement with FDA to Create a Novel “Big Data” Paradigm for Collection of Patient Safety and Outcomes Information 2
... loss is a major cause of death from roadside bombs ... for people age 4 to 44, often overwhelms the body,s ... natural process, a team led by Erin Lavik, a new ... doctoral student, James P. Bertram, built synthetic platelets that show ...
... Care at Hahnemann among the Best in the Nation ... it has been granted Magnet(R) recognition by the American Nurses ... the highest levels of recognition a hospital or medical center ... hospitals in the country that have achieved this prestigious distinction. ...
... , , , , WALTHAM, ... world,s leading research and advisory firms for pharmaceutical and ... dermatologists, Centocor Ortho Biotech/Janssen-Cilag,s Stelara and Abbott,s briakinumab (both ... share in 2012 in the drug market for moderate ...
Cached Biology Technology:Researchers take the inside route to halt bleeding 2Hahnemann University Hospital Granted Magnet(R) Status 2Hahnemann University Hospital Granted Magnet(R) Status 3In 2012, Stelara and Briakinumab Will Capture 22 Percent of the Biologics Share in the Moderate to Severe Psoriasis Drug Market 2In 2012, Stelara and Briakinumab Will Capture 22 Percent of the Biologics Share in the Moderate to Severe Psoriasis Drug Market 3