We do 'feel with the mind's eye,' confirm Emory researchers in Nature

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 discriminated, 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 sensory physiology 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 National Institute of Neurological Disorders and Stroke and the National Eye Institute of the National Institutes of Health.


Contact: Sarah Goodwin
Emory University Health Sciences Center

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