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:4/30/2017)... San Francisco, CA (PRWEB) , ... April 30, 2017 , ... ... Bay Area, is proud to announce an updated blog post on the continual issue ... are "too busy" to seek a second opinion before dental surgery, but this can ...
(Date:4/29/2017)... ... April 29, 2017 , ... Natural Family Planning ... observe the naturally occurring signs and symptoms of a woman's menstrual cycle. ... , Natural family planning and fertility are special interests of Dr. Bazger’s. She ...
(Date:4/29/2017)... UTAH (PRWEB) , ... April 29, 2017 , ... Phytomer ... region. As a Phytomer Account Manager, Smith’s role is to provide excellent ... brands that make up The Phytomer Group. Smith comes to Phytomer with a wealth ...
(Date:4/29/2017)... (PRWEB) , ... April 29, 2017 , ... More than ... so what are Americans doing in their leisure time that causes hearing loss? May ... habits that may be contributing to hearing loss, as well as schedule a hearing ...
(Date:4/28/2017)... , ... April 28, 2017 , ... An April 24th article on Yahoo! ... 180 pounds with the help of a weight loss surgery. The woman, declaring “I will ... that have been left following her dramatic weight loss. Dr. Feiz & Associates notes that, ...
Breaking Medicine News(10 mins):
(Date:4/19/2017)... NEW YORK , April 19, 2017 The ... anticipated to showcase a healthy CAGR during the forecast period ... product type in the global digital mobile X-Ray devices market, ... 2,000 Mn in 2017, expanding at a CAGR of 7% ... create absolute $ opportunity of more than US$ 100 Mn ...
(Date:4/19/2017)... NEW YORK , April 19, 2017 /PRNewswire/ ... This report on the prostate cancer ... of the global market. Increasing prevalence of prostate ... as innovation in the development of new drugs ... hormone-refractory prostate cancer drug due to lesser side ...
(Date:4/19/2017)...  Sorrento Therapeutics, Inc. (NASDAQ: SRNE ... new treatments for cancer and other unmet medical ... announced underwritten public offering of 23,625,084 shares of ... of $2.00 per share, before deducting underwriting discounts ... Sorrento.  The net proceeds to Sorrento from this ...
Breaking Medicine Technology: