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:2/20/2017)... ... February 20, 2017 , ... Best ... an employee health benefit for companies that want to help members of their ... employees will have access to Watson’s suite of oncology offerings for insights on ...
(Date:2/20/2017)... ... February 20, 2017 , ... Chuck E. Cheese’s® and Center for ... joint event at Chuck E. Cheese’s locations throughout New England, New York and New ... opportunity to experience the fun of visiting Chuck E. Cheese’s in a sensory-friendly environment. ...
(Date:2/19/2017)... ... February 19, 2017 , ... Braun Industries will be ... & Exposition, the event will take place February 23-25, 2017 at the Calvin L. ... in Booth #909 with three new ambulances on display. , “JEMS ...
(Date:2/18/2017)... VA (PRWEB) , ... February ... ... of Change for Devicemakers , Sponsored by Axendia, **FDAnews Free Webinar**, March ... , Are manufacturers looking to reduce their regulatory burden? Pay dividends in ...
(Date:2/18/2017)... , ... February 17, 2017 , ... Park Cities Pet ... Behave” Show on the Pet Life Radio network. The episode, which was posted ... of topics including: what factors led to Park Cities Pet Sitter’s being awarded the ...
Breaking Medicine News(10 mins):
(Date:2/17/2017)...   Risperdal lawsuits involving gynecomastia (male breast growth) ... of the atypical antipsychotic medication continue to move forward ... Common Pleas, where the state,s Risperdal docket has been ... notice posted on the Court,s website , the ... 9, 2017 at 11:00 a.m. (In Re: Risperdal Litigation, ...
(Date:2/17/2017)... LOUIS , Feb. 17, 2017   FormFast ... has announced a new partnership with Engage , ... the United States . FormFast will serve as ... of Engage,s implementations with MEDITECH .  ... provides essential functionality to complement and enhance the electronic ...
(Date:2/17/2017)... , Feb. 17, 2017  BioDigital, Inc., ... the partnership of their 3D body mapping technology ... IT.  The new integration will be used to ... interactive model of the human body. BioDigital pilots ... clinicians time, while also increasing the precision of ...
Breaking Medicine Technology: