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Nat Neurosci. 2002 Jan;5(1):15-6.

An auditory domain in primate prefrontal cortex.

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Section of Neurobiology, Yale University School of Medicine, New Haven, Connecticut 06510, USA.


Although neuroimaging studies confirm the frontal lobe's involvement in language processes and auditory working memory, the cellular and network basis of these functions is unclear. Physiological studies of the frontal lobe in non-human primates have focused on visual working memory and auditory spatial processing in dorsolateral prefrontal cortex (PFC), although the candidate PFC areas for non-spatial acoustic processing lie in the ventrolateral PFC (areas 12 and 45), which receives afferents from physiologically and anatomically defined auditory cortex. We recorded neuronal responses from ventrolateral PFC to auditory cues in awake monkeys under controlled conditions and report that the macaque ventrolateral PFC contains an auditory responsive domain in which neurons show responses to complex sounds, including animal and human vocalizations.

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