March 28th, 2010 by Medgadget in Better Health Network, News, Research
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Belgian researchers from the European nanoelectronics and nano-technology research center Imec, Holst Centre, and Katholieke Universiteit in Leuven developed an EEG based writing system that may be helpful for people with severe disabilities.
The Mind Speller, though, seems very similar to University of Wisconsin-Madison’s communication tool we wrote about a year ago that flashes rows and columns of characters and monitors when the brain notices the character it wants to type.
It detects and interprets P300 event-related potentials in the EEG-signals of a person that is selecting characters from a display presenting alternate rows and columns of characters. P300 potentials are often used as metrics of cognitive function in decision making processes. However, currently available P300 devices are large, expensive and uncomfortable in use. Read more »
*This blog post was originally published at Medgadget*
February 25th, 2010 by Medgadget in Better Health Network, News, Research
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From RIKEN Research:
Scientists from RIKEN Brain Science Institute in Wako, Japan and the Institute of Neurology at University College London have discovered that the brains of macaque monkeys undergo significant development when they are taught how to use tools. This finding may imply that our advanced human brains got as big and powerful as they did thanks to using tools, rather than the other way around.
The researchers used a technique called voxel-based morphometry (VBM) to classify areas of brain tissue in their MRI images as grey matter, white matter, or cerebro-spinal fluid, and to compare the volume of each tissue at different stages of learning. Read more »
*This blog post was originally published at Medgadget*
January 12th, 2010 by Shadowfax in Better Health Network, True Stories
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Exaggeration, drama, and histrionics are very much the rule of thumb in the ER. Someone comes in and claims they were stabbed with an eight-inch butcher’s knife, and the police later bring in the actual weapon, and it turns out to be a three-inch penknife. Someone claims to have taken a whole bottle of tylenol, but their serum levels turn out to be nowhere near the toxic level (or even zero). A patient reports to you that their last pneumonia was so bad their doctor didn’t think they’d pull through, but you check the records and see they weren’t even in the ICU. (The sole exception to this rule, of course, is the stated alcohol intake, which is usually about half to a third the actual alcohol intake.) Read more »
*This blog post was originally published at Movin' Meat*
October 13th, 2009 by Medgadget in Better Health Network, News
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Even though we intuitively think that a particular color looks the same to different people, researchers from The University of Chicago and Vanderbilt University have uncovered that the brain plays a critical role in color perception. The brain actually assigns colors to objects and with a bit of tinkering one can fool the brain to assign the wrong color to an object being viewed. Read more »
*This blog post was originally published at Medgadget*
