Auditory motion-specific mechanisms in the primate brain

Poirier, C. et al. (2017) Auditory motion-specific mechanisms in the primate brain. PLoS Biology, 15(5), e2001379. (doi: 10.1371/journal.pbio.2001379) (PMID:28472038) (PMCID:PMC5417421)

Abstract

This work examined the mechanisms underlying auditory motion processing in the auditory cortex of awake monkeys using functional magnetic resonance imaging (fMRI). We tested to what extent auditory motion analysis can be explained by the linear combination of static spatial mechanisms, spectrotemporal processes, and their interaction. We found that the posterior auditory cortex, including A1 and the surrounding caudal belt and parabelt, is involved in auditory motion analysis. Static spatial and spectrotemporal processes were able to fully explain motion-induced activation in most parts of the auditory cortex, including A1, but not in circumscribed regions of the posterior belt and parabelt cortex. We show that in these regions motion-specific processes contribute to the activation, providing the first demonstration that auditory motion is not simply deduced from changes in static spatial location. These results demonstrate that parallel mechanisms for motion and static spatial analysis coexist within the auditory dorsal stream.

• Item Type: Articles
• Status: Published
• Refereed: Yes
• Glasgow Author(s) Enlighten ID: Dheerendra, Dr Pradeep
• Authors: Poirier, C., Baumann, S., Dheerendra, P., Joly, O., Hunter, D., Balezeau, F., Sun, L., Rees, A., Petkov, C. I., Thiele, A., and Griffiths, T. D.
• College/School: College of Medical Veterinary and Life Sciences > School of Psychology & Neuroscience
• Journal Name: PLoS Biology
• Publisher: Public Library of Science
• ISSN: 1544-9173
• ISSN (Online): 1545-7885
• Published Online: 04 May 2017
• Copyright Holders: Copyright © 2017 Poirier et al
• First Published: First published in PLoS Biology 15(5): e2001379
• Publisher Policy: Reproduced under a Creative Commons License