HOME >> MEDICINE >> NEWS
Scientists capture images of brain in action as it's learning

Scientists in Toronto have captured images of the brain in action as it's learning -- an exciting finding that could help in the diagnosis and treatment of brain injuries.

Remember the comic strip analogy of a lightbulb coming on in the brain to depict a person who learns and becomes aware of something? It's really a "pattern of lightbulbs" according to a study conducted by the Rotman Research Institute at Baycrest Centre for Geriatric Care.

The study, published in the May 28th issue of the international journal SCIENCE has generated quite a buzz among neuroscientists and is being billed as a significant contribution to understanding how the brain works when conscious learning is taking place.

Scientists already know that 'learning' and 'awareness' is a function of the prefrontal cortex of the brain, part of the higher thinking region. Now the Rotman study has confirmed that it's actually several regions acting in concert.

"We found that learning and awareness involves a cohesive network of brain activity," says Rotman scientist Dr. Randy McIntosh, who led the study using brain imaging technology along with co-investigators Drs. Natasha Rajah and Nancy Lobaugh.

"It's like a pattern of lightbulbs coming on. Most of the action is happening in the left prefrontal cortex, but we confirmed that areas far away from the frontal regions are activated as well. They include the sensory regions that provide the visual and auditory information needed to do the task."

In the study, 12 university students participated in an associative learning exercise on a computer. They would hear two different tones and only six in the group became 'aware' that one of the two tones always predicted a visual event on the computer screen.

During the exercise, regional cerebral blood flow (which signifies brain activity) was measured in both the aware and unaware groups using a brain imaging technique called positron emission tomography (PET).

In students who
'"/>

Contact: Kelly Connelly
kconnelly@baycrest.org
416-785-2432
Baycrest
28-Jun-1999


Page: 1 2

Related medicine news :

1. Scientists replicate hepatitis C virus in laboratory
2. Scientists identify brain regions that decide where we look
3. Scientists uncover new mechanism for the amygdala in fear recognition
4. Scientists identify protein critical to melanoma growth
5. Scientists discover recipe for life: eating the Polymeal cuts heart disease by 76%
6. Scientists study fish oil diet in bid to cut heart attack risks
7. Scientists discover enzyme crucial to the transportation of proteins within cells
8. Scientists turn on the gender lens on cardiovascular disease research
9. Scientists stalk PPAR-gamma, find novel cancer connection
10. Scientists align billion-year-old protein with embryonic heart defects
11. Scientists pinpoint flaw, offer new promise for stroke treatment

Post Your Comments:
*Name:
*Comment:
*Email:


(Date:5/5/2016)... ... May 05, 2016 , ... The U.S. ... cigarettes, requiring e-cigarette manufacturers to submit their products through an arduous federal approval ... vaping products that entered the market since February 15, 2007. That would essentially ...
(Date:5/5/2016)... ... , ... TLC Laser Eye Centers announced today that it has acquired Gordon ... be called “Gordon Schanzlin New Vision Institute, a TLC Laser Eye Center.” , ... ensure that patients continue to receive the highest quality of care. In addition, all ...
(Date:5/5/2016)... ... May 05, 2016 , ... ... use ultraviolet light A (UV-A) for photosynthesis, researchers Juntian Xu and Kunshan Gao ... brown seaweeds. The pair observed that when photosynthetically active radiation (i.e. the white ...
(Date:5/5/2016)... ... 05, 2016 , ... United Benefit Advisors (UBA), the nation’s ... latest addition to its family of Partner Firms. Headquartered in Mount Pleasant, South ... resources, and health care consumerism specialists. , “Partnering with UBA will enable our ...
(Date:5/5/2016)... ... May 05, 2016 , ... An ... all U.S. states and certain Canadian provinces is now available from the International ... Institute (WCRI). , The report, Workers’ Compensation Laws as of January ...
Breaking Medicine News(10 mins):
(Date:5/5/2016)... -- Research and Markets has announced the addition ... USA"  report to their offering.  ,     (Logo: http://photos.prnewswire.com/prnh/20160330/349511LOGO ... Positron Emission Tomography (PET) scanner and cyclotron install base ... with the current known number of PET scanners and ... report also contains a detailed breakdown of this equipment ...
(Date:5/5/2016)... 5, 2016 ... of the  "Europe Thrombocythemia Market and ... to their offering.       ... ,The latest research Europe Thrombocythemia Market ... provides comprehensive insights into Thrombocythemia pipeline ...
(Date:5/5/2016)... , May 5, 2016 ... of the  "Europe Thalassaemia Market and Competitive ... offering.       (Logo: http://photos.prnewswire.com/prnh/20160330/349511LOGO ... Thalassaemia Market and Competitive Landscape Highlights - ... products, Thalassaemia epidemiology, Thalassaemia market valuations and ...
Breaking Medicine Technology:
Cached News: