The Neuromagnetic Dynamics of Time Perception

Examining real-time cortical dynamics is crucial for understanding time perception. Using magnetoencephalography we studied auditory duration discrimination of short (<.5 s) versus long tones (>.5 s) versus a pitch control. Time-frequency analysis of event-related fields showed widespread beta...

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Main Authors:	Carver, Frederick W., Elvevåg, Brita, Altamura, Mario, Weinberger, Daniel R., Coppola, Richard
Format:	Online
Language:	English
Published:	Public Library of Science 2012
Online Access:	https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3422225/

id	pubmed-3422225
recordtype	oai_dc
spelling	pubmed-34222252012-08-21 The Neuromagnetic Dynamics of Time Perception Carver, Frederick W. Elvevåg, Brita Altamura, Mario Weinberger, Daniel R. Coppola, Richard Research Article Examining real-time cortical dynamics is crucial for understanding time perception. Using magnetoencephalography we studied auditory duration discrimination of short (<.5 s) versus long tones (>.5 s) versus a pitch control. Time-frequency analysis of event-related fields showed widespread beta-band (13–30 Hz) desynchronization during all tone presentations. Synthetic aperture magnetometry indicated automatic primarily sensorimotor responses in short and pitch conditions, with activation specific to timing in bilateral inferior frontal gyrus. In the long condition, a right lateralized network was active, including lateral prefrontal cortices, inferior frontal gyrus, supramarginal gyrus and secondary auditory areas. Activation in this network peaked just after attention to tone duration was no longer necessary, suggesting a role in sustaining representation of the interval. These data expand our understanding of time perception by revealing its complex cortical spatiotemporal signature. Public Library of Science 2012-08-17 /pmc/articles/PMC3422225/ /pubmed/22912714 http://dx.doi.org/10.1371/journal.pone.0042618 Text en https://creativecommons.org/publicdomain/zero/1.0/ This is an open-access article distributed under the terms of the Creative Commons Public Domain declaration, which stipulates that, once placed in the public domain, this work may be freely reproduced, distributed, transmitted, modified, built upon, or otherwise used by anyone for any lawful purpose.
repository_type	Open Access Journal
institution_category	Foreign Institution
institution	US National Center for Biotechnology Information
building	NCBI PubMed
collection	Online Access
language	English
format	Online
author	Carver, Frederick W. Elvevåg, Brita Altamura, Mario Weinberger, Daniel R. Coppola, Richard
spellingShingle	Carver, Frederick W. Elvevåg, Brita Altamura, Mario Weinberger, Daniel R. Coppola, Richard The Neuromagnetic Dynamics of Time Perception
author_facet	Carver, Frederick W. Elvevåg, Brita Altamura, Mario Weinberger, Daniel R. Coppola, Richard
author_sort	Carver, Frederick W.
title	The Neuromagnetic Dynamics of Time Perception
title_short	The Neuromagnetic Dynamics of Time Perception
title_full	The Neuromagnetic Dynamics of Time Perception
title_fullStr	The Neuromagnetic Dynamics of Time Perception
title_full_unstemmed	The Neuromagnetic Dynamics of Time Perception
title_sort	neuromagnetic dynamics of time perception
description	Examining real-time cortical dynamics is crucial for understanding time perception. Using magnetoencephalography we studied auditory duration discrimination of short (<.5 s) versus long tones (>.5 s) versus a pitch control. Time-frequency analysis of event-related fields showed widespread beta-band (13–30 Hz) desynchronization during all tone presentations. Synthetic aperture magnetometry indicated automatic primarily sensorimotor responses in short and pitch conditions, with activation specific to timing in bilateral inferior frontal gyrus. In the long condition, a right lateralized network was active, including lateral prefrontal cortices, inferior frontal gyrus, supramarginal gyrus and secondary auditory areas. Activation in this network peaked just after attention to tone duration was no longer necessary, suggesting a role in sustaining representation of the interval. These data expand our understanding of time perception by revealing its complex cortical spatiotemporal signature.
publisher	Public Library of Science
publishDate	2012
url	https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3422225/
_version_	1611550542347108352

The Neuromagnetic Dynamics of Time Perception

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