Navigation Links
Brain Can 'See' Objects Through Touch
Date:5/28/2009

Tactile input plays a key role in visualization, study finds

THURSDAY, May 28 (HealthDay News) -- Touch alone can activate areas of the brain triggered when people look at objects, a finding that shows that these regions process information about objects using different types of sensory input, according to a new study.

Researchers at the University of Birmingham in the United Kingdom studied a man who suffered stroke-related damage in an area of the brain called the lateral occipital cortex (LO), which plays an important role in object recognition. As a result, the man couldn't process visual input normally; he could see objects, but they were jumbled figures to him a condition called visual agnosia.

However, the man could still recognize objects by holding them.

The researchers used functional MRI to compare brain activity in the mans brain and in healthy volunteers while they looked at pictures of objects and scrambled images and touched objects with one hand.

The results showed that tactile input is not secondary to visual recognition in activation of dorsal LO. Rather, it can operate directly through sense of touch, the study found.

"Our data indicate, for the first time, that at least some regions in the LO can be activated normally from touch, even when input from ventral LO is lesioned and visual recognition is prevented," the researchers wrote. "This is consistent with estimates of effective connectivity from functional MRI that have implied that there are direct connections between somatosensory cortex and LO."

The study appears online May 28 in the journal Current Biology.

More information

The U.S. National Institute of Neurological Disorders and Stroke has more about agnosia.



-- Robert Preidt



SOURCE: Cell Press, news release, May 28, 2009


'/>"/>
Copyright©2009 ScoutNews,LLC.
All rights reserved  

Related medicine news :

1. Kyowa Hakko USA Announces GRAS Self-Affirmation for Novel Brain Health Ingredient Cognizin(R) Citicoline
2. Cottonseed-based drug shows promise in treating severe brain cancer
3. Peregrine Pharmaceuticals Reports Progress in Cotara(R) Brain Cancer Clinical Program
4. Fighting "Brain Fog": How the Right Hormones Can Improve Mental Sharpness for Women
5. Plaques, Tangles in Brain Dont Always Lead to Alzheimers
6. Singing brains offers epilepsy and schizophrenia clues
7. Games for Health Conference Announces First Cognitive Health Track Powered by SharpBrains
8. Fear Response May Stem From Protein in Brain
9. Cocaine Spurs Long-Term Change in Brain Chemistry
10. Brain Scans Show How Humans Hear Emotion
11. Bonnie Hunt, Melina Kanakaredes and Dr. Ruth Westheimer Lend Their Support to Childrens Brain Tumor Foundation Benefit
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Brain Can 'See' Objects Through Touch
(Date:5/6/2016)... ... 2016 , ... US Sports Camps has collaborated with State Rugby Organization (SRO), ... this summer. Employing world-class rugby figures, including former Team USA players and college coaches, ... key fundamentals, match play, fitness and more. , “US Sports Camps is honored to ...
(Date:5/6/2016)... Grants Pass, OR (PRWEB) , ... May 06, 2016 , ... ... the eyes. In other seasons, when the weather is too cold, dry or hot, ... weather, the eyes can actually absorb moisture from the surrounding air. There’s only one ...
(Date:5/6/2016)... New York, NY (PRWEB) , ... May 06, 2016 , ... ... Pelagos Hotel & Resort on the north end of the island close to the ... from July 17th- August 10th 2016. , “We continue to have an amazing ...
(Date:5/6/2016)... , ... May 06, 2016 , ... ... online provider of career-focused education and corporate training, and the National Military Family ... to announce Maritza Aquino as the second full-tuition scholarship recipient of 2016. ...
(Date:5/5/2016)... ... ... TransWipe Volume 3 is a set of 30 professional transition animations created ... two video clips to instantly add a unique transition to any Final Cut Pro ... orientation options. TransWipe Volume 3 is a Final Cut Pro X exclusive plugin. , ...
Breaking Medicine News(10 mins):
(Date:5/5/2016)... 5, 2016 Progra m m ... of Oxitec , s mosquito in ... by 96 %   Oxitec and ... to fight wild Aedes aegypti, the dangerous mosquito that spreads dengue, ... of Grand Cayman .  MRCU, a global leader in mosquito ...
(Date:5/5/2016)... Research and Markets has announced the addition ... EU Markets"  report to their offering.  ,     (Logo: http://photos.prnewswire.com/prnh/20160330/349511LOGO ... the current Positron Emission Tomography (PET) scanner and cyclotron install ... includes France , Germany ... and the United Kingdom . Along ...
(Date:5/5/2016)... , May 5, 2016 ... addition of the  "Europe Thalassaemia Market and ... their offering.       (Logo: ... Europe Thalassaemia Market and Competitive Landscape Highlights ... pipeline products, Thalassaemia epidemiology, Thalassaemia market valuations ...
Breaking Medicine Technology: