Navigation Links
Brain mechanism underlying the recognition of hand gestures develops even when blind
Date:9/5/2014

Does a distinctive mechanism work in the brain of congenitally blind individuals when understanding and learning others' gestures? Or does the same mechanism as with sighted individuals work? Japanese researchers figured out that activated brain regions of congenitally blind individuals and activated brain regions of sighted individuals share common regions when recognizing human hand gestures. They indicated that a region of the neural network that recognizes others' hand gestures is formed in the same way even without visual information. The findings are discussed in The Journal of Neuroscience (July 23, 2014 electronic edition).

Our brain mechanism perceives human bodies from inanimate objects and shows a particular response. A part of a region of the "visual cortex" that processes visual information supports this mechanism. Since visual information is largely used in perception, this is reasonable, however, for perception using haptic information and also for the recognition of one's own gestures, it has been recently learned that the same brain region is activated. It came to be considered that there is a mechanism that is formed regardless of the sensory modalities and recognizes human bodies.

Blind and sighted individuals participated in the study of the research group of Assistant Professor Ryo Kitada of the National Institute for Physiological Sciences, National Institutes of Natural Sciences. With their eyes closed, they were instructed to touch plastic casts of hands, teapots, and toy cars and identify the shape. As it turned out, sighted individuals and blind individuals could make an identification with the same accuracy. Through measuring the activated brain region using functional magnetic resonance imaging (fMRI), for plastic casts of hands and not for teapots or toy cars, the research group was able to pinpoint a common activated brain region regardless of visual experience. On another front, it also revealed a region showing signs of activity that is dependent on the duration of the visual experience and it was also learned that this region functions as a supplement when recognizing hand gestures.

As Assistant Professor Ryo Kitada notes, "Many individuals are active in many parts of the society even with the loss of their sight as a child. Developmental psychology has been advancing its doctrine based on sighted individuals. I wish this finding will help us grasp how blind individuals understand and learn about others and be seen as an important step in supporting the development of social skills for blind individuals."


'/>"/>

Contact: Ryo Kitada
kitada@nips.ac.jp
National Institutes of Natural Sciences
Source:Eurekalert

Related biology news :

1. Training your brain to prefer healthy foods
2. This is your brains blood vessels on drugs
3. Dyslexic readers have disrupted network connections in the brain
4. Kessler Foundation researchers publish first study of brain activation in MS using fNIRS
5. Scientists plug into a learning brain
6. Gamblers are greedy bird-brains, University of Warwick research finds
7. Zombie ant fungi know brains of their hosts
8. Driving brain rhythm makes mice more sensitive to touch
9. Physically fit kids have beefier brain white matter than their less-fit peers
10. Fish study links brain size to parental duties
11. Bypass commands from the brain to legs through a computer
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:7/20/2017)... DAL ) customers now can use fingerprints instead of their ... (DCA). ... launches biometrics to board aircraft at Reagan Washington National Airport ... Delta,s biometric boarding pass experience that launched in May at ... process to allow eligible Delta SkyMiles Members who are enrolled in CLEAR ...
(Date:5/16/2017)... May 16, 2017  Veratad Technologies, LLC ( www.veratad.com ... age and identity verification solutions, announced today they will ... 2017, May 15 thru May 17, 2017, in ... International Trade Center. Identity impacts the ... in today,s quickly evolving digital world, defining identity is ...
(Date:4/18/2017)... , April 18, 2017  Socionext Inc., a global expert in ... media edge server, the M820, which features the company,s hybrid codec ... provided by Tera Probe, Inc., will be showcased during the upcoming ... NAB show at the Las Vegas Convention ... Click ...
Breaking Biology News(10 mins):
(Date:10/10/2017)... -- International research firm Parks Associates announced today that ... TMA 2017 Annual Meeting , October 11 in Scottsdale, Arizona ... market and how smart safety and security products impact the competitive landscape. ... Parks Associates: Smart Home Devices: Main Purchase ... "The residential security market has experienced continued growth, ...
(Date:10/9/2017)... Oct. 9, 2017  BioTech Holdings announced today ... which its ProCell stem cell therapy prevents limb ... The Company, demonstrated that treatment with ProCell resulted ... saved as compared to standard bone marrow stem ... resulted in reduction of therapeutic effect.  ...
(Date:10/9/2017)... ... October 09, 2017 , ... ... the medical journal, Epilepsia, Brain Sentinel’s SPEAC® System which uses the surface ... detecting generalized tonic-clonic seizures (GTCS) using surface electromyography (sEMG). The prospective multicenter ...
(Date:10/6/2017)... Boston, Mass. (PRWEB) , ... October 06, 2017 ... ... spotlight female entrepreneurship within the healthcare and technology sector at their fourth annual ... six panels featuring 30 inspiring speakers and the ELEVATE pitch competition showcasing early ...
Breaking Biology Technology: