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Author (up) Rosenzweig, M.R.
Title Representations of the Two Ears at the Auditory Cortex Type Journal Article
Year 1951 Publication American Journal of Physiology -- Legacy Content Abbreviated Journal
Volume 167 Issue 1 Pages 147-158
Keywords
Abstract This investigation is part of a more general study of binaural perception and

its electrophysiological correlates. In order to account for some of the

phenomena of binaural perception, Boring (I) proposed that the two ears

are represented at the auditory cortex by two different populations of cortical units.

We have attempted to test this hypothesis, taking up two aspects in succession:

I) Do the populations of cortical units that represent the two ears differ in

size at the two cerebral hemispheres?S timulation of either ear evokes electrophysiological

responseso ver the entire extent of the auditory cortex of both hemispheres.

It has been suggestedt hat the responsesa re larger in amplitude at the hemisphere

contralateral to the ear stimulated (2-4), but this has also been denied (5). We will

present quantitative evidence to show that at both hemispheres the response of

the contralateral ear is significantly larger than the response of the ipsilateral ear.3

2> Are the two ears represented by independent populations of cortical units,

or are they represented by overlapping populations of cortical units? Results from

a small number of experiments indicate that the two populations overlap considerably.
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Call Number Equine Behaviour @ team @ Serial 5359
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