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The Representation of Time Windows in Primate Auditory Cortex

Lookup NU author(s): Dr Pradeep Dheerendra, Dr Simon Baumann, Dr Olivier Joly, Dr Fabien BalezeauORCiD, Professor Christopher Petkov, Professor Alexander Thiele, Professor Tim GriffithsORCiD

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Abstract

© The Author(s) 2021. Published by Oxford University Press. Whether human and nonhuman primates process the temporal dimension of sound similarly remains an open question. We examined the brain basis for the processing of acoustic time windows in rhesus macaques using stimuli simulating the spectrotemporal complexity of vocalizations. We conducted functional magnetic resonance imaging in awake macaques to identify the functional anatomy of response patterns to different time windows. We then contrasted it against the responses to identical stimuli used previously in humans. Despite a similar overall pattern, ranging from the processing of shorter time windows in core areas to longer time windows in lateral belt and parabelt areas, monkeys exhibited lower sensitivity to longer time windows than humans. This difference in neuronal sensitivity might be explained by a specialization of the human brain for processing longer time windows in speech.

Publication metadata

Author(s): Dheerendra P, Baumann S, Joly O, Balezeau F, Petkov CI, Thiele A, Griffiths TD

Publication type: Article

Publication status: Published

Journal: Cerebral Cortex

Year: 2022

Volume: 32

Issue: 16

Pages: 3568-3580

Print publication date: 15/08/2022

Online publication date: 07/12/2021

Acceptance date: 05/11/2021

Date deposited: 05/09/2022

ISSN (print): 1047-3211

ISSN (electronic): 1460-2199

Publisher: Oxford University Press

URL: https://doi.org/10.1093/cercor/bhab434

DOI: 10.1093/cercor/bhab434

PubMed id: 34875029

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