The representation of time windows in primate auditory cortex

Dheerendra, P. , Baumann, S., Joly, O., Balezeau, F., Petkov, C. I., Thiele, A. and Griffiths, T. D. (2022) The representation of time windows in primate auditory cortex. Cerebral Cortex, 32(16), pp. 3568-3580. (doi: 10.1093/cercor/bhab434) (PMID:34875029) (PMCID:PMC9376871)

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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.

Item Type:Articles
Additional Information:Funding: Wellcome Trust PhD studentship (grant number WT102561/Z/13/Z to P.D.); Wellcome Trust Senior Clinical Fellowship (grant number WT106964MA T.D.G.); Wellcome Investigator Award (grant number WT092606AIA to C.I.P.); Wellcome Trust Programme (grant number WT093104 A.T.)..
Keywords:Primates, functional magnetic resonance imaging (fMRI), time-window processing.
Glasgow Author(s) Enlighten ID:Dheerendra, Dr Pradeep
Authors: Dheerendra, P., Baumann, S., Joly, O., Balezeau, F., Petkov, C. I., Thiele, A., and Griffiths, T. D.
College/School:College of Medical Veterinary and Life Sciences > School of Psychology & Neuroscience
Journal Name:Cerebral Cortex
Publisher:Oxford University Press
ISSN (Online):1460-2199
Published Online:07 December 2021
Copyright Holders:Copyright © 2021 The Authors
First Published:First published in Cerebral Cortex 32(16): 3568-3580
Publisher Policy:Reproduced under a Creative Commons License

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