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Front Integr Neurosci. 2010 Aug 20;4. pii: 121. doi: 10.3389/fnint.2010.00121. eCollection 2010.

Comparison of gain-like properties of eye position signals in inferior colliculus versus auditory cortex of primates.

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Center for Cognitive Neuroscience, Duke University Durham, NC, USA.


We evaluated to what extent the influence of eye position in the auditory pathway of primates can be described as a gain field. We compared single unit activity in the inferior colliculus (IC), core auditory cortex (A1) and the caudomedial belt (CM) region of auditory cortex (AC) in primates, and found stronger evidence for gain field-like interactions in the IC than in AC. In the IC, eye position signals showed both multiplicative and additive interactions with auditory responses, whereas in AC the effects were not as well predicted by a gain field model.


auditory cortex; eye position; gain field; inferior colliculus; primate

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