Delta/Theta band EEG activity shapes the rhythmic perceptual sampling of auditory scenes

Abstract Many studies speak in favor of a rhythmic mode of listening, by which the encoding of acoustic information is structured by rhythmic neural processes at the time scale of about 1 to 4 Hz. Indeed, psychophysical data suggest that humans sample acoustic information in extended soundscapes not...

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Autores principales:	Cora Kubetschek, Christoph Kayser
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/6a2239e07dff42959d76d31b946309f3
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spelling	oai:doaj.org-article:6a2239e07dff42959d76d31b946309f32021-12-02T14:16:42ZDelta/Theta band EEG activity shapes the rhythmic perceptual sampling of auditory scenes10.1038/s41598-021-82008-72045-2322https://doaj.org/article/6a2239e07dff42959d76d31b946309f32021-01-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-82008-7https://doaj.org/toc/2045-2322Abstract Many studies speak in favor of a rhythmic mode of listening, by which the encoding of acoustic information is structured by rhythmic neural processes at the time scale of about 1 to 4 Hz. Indeed, psychophysical data suggest that humans sample acoustic information in extended soundscapes not uniformly, but weigh the evidence at different moments for their perceptual decision at the time scale of about 2 Hz. We here test the critical prediction that such rhythmic perceptual sampling is directly related to the state of ongoing brain activity prior to the stimulus. Human participants judged the direction of frequency sweeps in 1.2 s long soundscapes while their EEG was recorded. We computed the perceptual weights attributed to different epochs within these soundscapes contingent on the phase or power of pre-stimulus EEG activity. This revealed a direct link between 4 Hz EEG phase and power prior to the stimulus and the phase of the rhythmic component of these perceptual weights. Hence, the temporal pattern by which the acoustic information is sampled over time for behavior is directly related to pre-stimulus brain activity in the delta/theta band. These results close a gap in the mechanistic picture linking ongoing delta band activity with their role in shaping the segmentation and perceptual influence of subsequent acoustic information.Cora KubetschekChristoph KayserNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-15 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Cora Kubetschek Christoph Kayser Delta/Theta band EEG activity shapes the rhythmic perceptual sampling of auditory scenes
description	Abstract Many studies speak in favor of a rhythmic mode of listening, by which the encoding of acoustic information is structured by rhythmic neural processes at the time scale of about 1 to 4 Hz. Indeed, psychophysical data suggest that humans sample acoustic information in extended soundscapes not uniformly, but weigh the evidence at different moments for their perceptual decision at the time scale of about 2 Hz. We here test the critical prediction that such rhythmic perceptual sampling is directly related to the state of ongoing brain activity prior to the stimulus. Human participants judged the direction of frequency sweeps in 1.2 s long soundscapes while their EEG was recorded. We computed the perceptual weights attributed to different epochs within these soundscapes contingent on the phase or power of pre-stimulus EEG activity. This revealed a direct link between 4 Hz EEG phase and power prior to the stimulus and the phase of the rhythmic component of these perceptual weights. Hence, the temporal pattern by which the acoustic information is sampled over time for behavior is directly related to pre-stimulus brain activity in the delta/theta band. These results close a gap in the mechanistic picture linking ongoing delta band activity with their role in shaping the segmentation and perceptual influence of subsequent acoustic information.
format	article
author	Cora Kubetschek Christoph Kayser
author_facet	Cora Kubetschek Christoph Kayser
author_sort	Cora Kubetschek
title	Delta/Theta band EEG activity shapes the rhythmic perceptual sampling of auditory scenes
title_short	Delta/Theta band EEG activity shapes the rhythmic perceptual sampling of auditory scenes
title_full	Delta/Theta band EEG activity shapes the rhythmic perceptual sampling of auditory scenes
title_fullStr	Delta/Theta band EEG activity shapes the rhythmic perceptual sampling of auditory scenes
title_full_unstemmed	Delta/Theta band EEG activity shapes the rhythmic perceptual sampling of auditory scenes
title_sort	delta/theta band eeg activity shapes the rhythmic perceptual sampling of auditory scenes
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/6a2239e07dff42959d76d31b946309f3
work_keys_str_mv	AT corakubetschek deltathetabandeegactivityshapestherhythmicperceptualsamplingofauditoryscenes AT christophkayser deltathetabandeegactivityshapestherhythmicperceptualsamplingofauditoryscenes
_version_	1718391670853074944

Delta/Theta band EEG activity shapes the rhythmic perceptual sampling of auditory scenes

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