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TMS to Help Sharpen Vision

August 10th, 2006 Tim Odell Neurology

He drew the short straw

The August 8th issue of Current Biology features research by Christian Ruff, Jon Driver and colleagues at University College London, on using transcranial magnetic stimulation (TMS) to actually sharpen peripheral visual perception. Specifically…

In their new work, the researchers used trans-cranial magnetic stimulation (TMS) to trigger a chain of activity in specific parts of the brain, while the activity was measured with a scanner. In this way, they were able to show that stimulating a particular region of the frontal cortex that is normally involved in generating eye movements can change activity in visual cortex, almost as though an eye movement had been made (even though the eye itself stayed still).
Perceptual tests confirmed that this brain stimulation had the effect of enhancing peripheral vision, as if people could now see better out of the corner of their eye.
Brain stimulation with TMS is beginning to be used in the treatment of various neurological conditions, including those, such as the after-effects of a stroke, that can impair vision. The technical breakthrough reported by the UCL group means that it is now possible to study the underlying brain activity triggered by TMS, both in the healthy brain and in patients with brain damage.

Excellent. Now they just need to build the technology into automotive headrests.
More from the Press Release
Here’s the abstract and full text .pdf on the Current Biology site.
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Tim Odell

Tim Odell started with Medgadget in 2005 while in graduate school at the University of Southern California. He prided himself on his irreverent tone and Pseudoscience Fridays series. After graduating in 2007, he began his career as a biomedical engineer with a Bioness, a neurorehabilitation start up, then moved on to Stryker in 2011.

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