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Accumulation of salient events in sensory cortex activity predicts subjective time

View ORCID ProfileMaxine T. Sherman, View ORCID ProfileZafeirios Fountas, View ORCID ProfileAnil K. Seth, View ORCID ProfileWarrick Roseboom
doi: https://doi.org/10.1101/2020.01.09.900423
Maxine T. Sherman
Sackler Centre for Consciousness Science, University of Sussex, UKDepartment of Informatics and Engineering, University of Sussex, UKBrighton and Sussex Medical School, University of Sussex, UK
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  • ORCID record for Maxine T. Sherman
  • For correspondence: m.sherman@sussex.ac.uk wjroseboom@gmail.com
Zafeirios Fountas
Emotech Labs, London, UKWellcome Centre for Human Neuroimaging, University College London, London, UK
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Anil K. Seth
Sackler Centre for Consciousness Science, University of Sussex, UKDepartment of Informatics and Engineering, University of Sussex, UK
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Warrick Roseboom
Sackler Centre for Consciousness Science, University of Sussex, UKDepartment of Informatics and Engineering, University of Sussex, UK
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  • For correspondence: m.sherman@sussex.ac.uk wjroseboom@gmail.com
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Abstract

Many contemporary models of time perception are based on the notion that our brain houses an internal “clock”, specialized for tracking duration. Here we show that specialized mechanisms are unnecessary, and that human-like duration judgements can be reconstructed from neural responses during sensory processing. Healthy human participants watched naturalistic, silent videos and rated their duration while fMRI was acquired. We constructed a computational model that predicts video durations from salient events in participants’ visual cortex activation. This model reproduced biases in participants’ subjective reports, whereas control models trained on auditory or somatosensory activity did not. Our data reveal that subjective time is inferred from information arising during the perception of our dynamic sensory environment, providing a computational basis for an end-to-end account of time perception.

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  • https://osf.io/2zqfu

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The copyright holder for this preprint is the author/funder, who has granted bioRxiv a license to display the preprint in perpetuity. It is made available under a CC-BY-NC 4.0 International license.
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Posted January 09, 2020.
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Accumulation of salient events in sensory cortex activity predicts subjective time
Maxine T. Sherman, Zafeirios Fountas, Anil K. Seth, Warrick Roseboom
bioRxiv 2020.01.09.900423; doi: https://doi.org/10.1101/2020.01.09.900423
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Accumulation of salient events in sensory cortex activity predicts subjective time
Maxine T. Sherman, Zafeirios Fountas, Anil K. Seth, Warrick Roseboom
bioRxiv 2020.01.09.900423; doi: https://doi.org/10.1101/2020.01.09.900423

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