ctivation noted previously, our
findings support the proposal that visual processing facilitates normal tactile
discrimination of orientation," the authors write. "Perhaps this is related to
the fact that we generally rely on the visual system for orientation
discrimination. Thus, involvement of the visual cortex may be
beneficial when macrogeometric features such as orientation are to be
but not for microgeometric features such as texture."
Co-authors of the study include Charles M. Epstein, M.D., and Scott T.
Grafton, M.D., both associate professors in Emory's neurology department.
"This study exemplifies the kind of collaboration that is so
characteristic of Emory," Dr. Sathian says. "Apart from my own background in
and psychophysics, the work drew on the expertise of Dr. Zangaladze in human
electrophysiology, of Dr. Epstein in transcranial magnetic stimulation and of
Dr. Grafton in functional brain imaging."
The work was supported by research grants to Dr. Sathian from the
Institute of Neurological Disorders and Stroke and the National Eye Institute of
the National Institutes of Health.
Page: 1 2 3 Related medicine news :1
Contact: Sarah Goodwin
Emory University Health Sciences Center
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