Navigation Links
Same Areas of the Brain Prepare for and Respond to a Stimulus, Say Experts

Scientists have smashed preconceived notions of brain function in the field of conducting tasks that involve spatial processing//, such as, preparing to move when a traffic light turns green.

Researcher Eric Schumacher, assistant professor of psychology at the Georgia Institute of Technology and colleagues, were surprised when they conducted MRI brain scans of their subjects during an experiment.

The researchers were testing the notion that areas of the brain involved in tasks of spatial processing, which are the superior parietal cortex, known for its involvement in spatial attention, and the premotor cortex, known for planning movements, are activated before the prefrontal cortex, which is known for its role in decision-making.

Admitting that he found the notion wrong, Schumacher says: "We found that all of these regions began to activate when the subjects prepared to do the task, even the prefrontal, which is the region that makes the decision on what to do.

"Activating the decision-making region even before the stimulus is presented seems to allow for a quicker response, it allows the brain to get a running start."

The experiment was carried out by loading the subjects into an MRI scanner. They were then shown a disk on a screen, and prompted to press a button, when needed.

The subjects had two different tasks to perform, one labeled easy, and one hard. During the easy task, subjects were asked to push a button using the fingers of their left hand if the disk appeared on the left of the screen and their right hand if the disk appeared on the right. The hard task was manually incompatible, so that if the disk appeared on the left, they were to push the buttons using their right hand and vice-versa. Sometimes a visual cue prompted them that they were about to perform the hard or the easy task, sometimes it did not.

When the tasks were cued, all three regions of the brain increased their a ctivity. When there was no cue, there was less activity.

Says Schumacher, “My research suggests that preparation for an upcoming change and appropriate responses involves the same brain regions that are involved in actually carrying out the action.”

The findings were published in the online journal Brain Research.


Related medicine news :

1. Treating Stroke Patients in Rural Areas
2. UN Formulates Action Plan for Relief to Recovery in Quake-hit Areas of Pakistan
3. Lack Of Communication Between Brain Areas Can Cause Autism
4. Mortality Rates Due To Heart Diseases Is High In Rural Areas Too
5. New Healthcare Scheme For Rural Areas Launched
6. Assam Recruits Doctors to Serve in Rural Areas
7. Malaria Claimes 60 Lives In Terai, Dooars Areas
8. Study Finds That Brain Areas Of People With Autism Do Not Work In Coordination
9. Study Links Children Living In Isolated Rural Areas With A Higher Risk Of Cancer
10. Vibriosis Outbreak Leads To Shut Down Of More Oyster Growing Areas
11. India Launches A Massive Campaign Against HIV/AIDS In Rural Areas
Post Your Comments:

(Date:11/25/2015)... ... 25, 2015 , ... Finnleo, a leader in the traditional and far-infrared sauna ... and far-infrared saunas. , For traditional saunas, Finnleo is offering 20% ... wood, and Finnleo uses only European Grade A Nordic White Spruce from sustainably grown ...
(Date:11/25/2015)... ... November 25, 2015 , ... TyloHelo Inc , North ... , Sauna accessories help improve the bather experience in the sauna, and the ... for the purist looking for simplicity in design to accessories that encourage a ...
(Date:11/25/2015)... ... November 26, 2015 , ... Ministers, senior ... (EU), ANDI Pan African Centres of Excellence, and public R&D institutions, civil societies ... the opening of the 5th African Network for Drugs and Diagnostics Innovation, ANDI, ...
(Date:11/25/2015)... ... November 25, 2015 , ... For the first time, ... Two Organizations, One Beat ” campaign. The partnership between the two groups began in ... in MAP International’s cause. , MAP International was founded in 1954 and is an ...
(Date:11/25/2015)... ... 2015 , ... Lakeview Health, a Jacksonville-based drug and alcohol ... and show through pictures what a positive difference it makes. The social media ... hashtag #FacesOfGratitude on their Facebook, Twitter, and Instagram accounts. Short stories can ...
Breaking Medicine News(10 mins):
(Date:11/25/2015)... , Nov. 25, 2015 On ... first federal bellwether trial against Wright Medical Technology, ... to their Conserve metal-on-metal hip implant device, awarded ... Following a two week trial and three days ... metal-on-metal hip device was defectively designed and unreasonably ...
(Date:11/25/2015)...  Trovagene, Inc. (NASDAQ: TROV ), a developer ... Officer Antonius Schuh, Ph.D., is scheduled to present a ... Jaffray Healthcare Conference. th Annual Piper ... in New York on Tuesday, ... will be available for one-on-one meetings during the conference. ...
(Date:11/25/2015)... , November 25, 2015 ... of self-monitoring blood glucose devices was valued at $11,171.1 ... with a CAGR of 5.7% during 2015 - 2022. ... population and increasing prevalence of diabetes. In addition, the ... care is also contributing to the growth of the ...
Breaking Medicine Technology: