Rate after-effects fail to transfer cross-modally: evidence for distributed sensory timing mechanisms

Accurate time perception is critical for a number of human behaviours, such as understanding speech and the appreciation of music. However, it remains unresolved whether sensory time perception is mediated by a central timing component regulating all senses, or by a set of distributed mechanisms, ea...

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Main Authors: Motola, Aysha, Heron, James, McGraw, Paul V., Roach, Neil W., Whitaker, David
Format: Article
Published: Nature Publishing Group 2018
Subjects:
Online Access:https://eprints.nottingham.ac.uk/49182/
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author Motola, Aysha
Heron, James
McGraw, Paul V.
Roach, Neil W.
Whitaker, David
author_facet Motola, Aysha
Heron, James
McGraw, Paul V.
Roach, Neil W.
Whitaker, David
author_sort Motola, Aysha
building Nottingham Research Data Repository
collection Online Access
description Accurate time perception is critical for a number of human behaviours, such as understanding speech and the appreciation of music. However, it remains unresolved whether sensory time perception is mediated by a central timing component regulating all senses, or by a set of distributed mechanisms, each dedicated to a single sensory modality and operating in a largely independent manner. To address this issue, we conducted a range of unimodal and cross-modal rate adaptation experiments, in order to establish the degree of specificity of classical after- effects of sensory adaptation. Adapting to a fast rate of sensory stimulation typically makes a moderate rate appear slower (repulsive after-effect), and vice versa. A central timing hypothesis predicts general transfer of adaptation effects across modalities, whilst distributed mechanisms predict a high degree of sensory selectivity. Rate perception was quantified by a method of temporal reproduction across all combinations of visual, auditory and tactile senses. Robust repulsive after-effects were observed in all unimodal rate conditions, but were not observed for any cross-modal pairings. Our results show that sensory timing abilities are adaptable but, crucially, that this change is modality-specific - an outcome that is consistent with a distributed sensory timing hypothesis.
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spelling nottingham-491822020-05-04T19:27:14Z https://eprints.nottingham.ac.uk/49182/ Rate after-effects fail to transfer cross-modally: evidence for distributed sensory timing mechanisms Motola, Aysha Heron, James McGraw, Paul V. Roach, Neil W. Whitaker, David Accurate time perception is critical for a number of human behaviours, such as understanding speech and the appreciation of music. However, it remains unresolved whether sensory time perception is mediated by a central timing component regulating all senses, or by a set of distributed mechanisms, each dedicated to a single sensory modality and operating in a largely independent manner. To address this issue, we conducted a range of unimodal and cross-modal rate adaptation experiments, in order to establish the degree of specificity of classical after- effects of sensory adaptation. Adapting to a fast rate of sensory stimulation typically makes a moderate rate appear slower (repulsive after-effect), and vice versa. A central timing hypothesis predicts general transfer of adaptation effects across modalities, whilst distributed mechanisms predict a high degree of sensory selectivity. Rate perception was quantified by a method of temporal reproduction across all combinations of visual, auditory and tactile senses. Robust repulsive after-effects were observed in all unimodal rate conditions, but were not observed for any cross-modal pairings. Our results show that sensory timing abilities are adaptable but, crucially, that this change is modality-specific - an outcome that is consistent with a distributed sensory timing hypothesis. Nature Publishing Group 2018-01-17 Article PeerReviewed Motola, Aysha, Heron, James, McGraw, Paul V., Roach, Neil W. and Whitaker, David (2018) Rate after-effects fail to transfer cross-modally: evidence for distributed sensory timing mechanisms. Scientific Reports, 8 . 924/1-924/10. ISSN 2045-2322 Human behavior; Sensory processing http://www.nature.com/articles/s41598-018-19218-z doi:10.1038/s41598-018-19218-z doi:10.1038/s41598-018-19218-z
spellingShingle Human behavior; Sensory processing
Motola, Aysha
Heron, James
McGraw, Paul V.
Roach, Neil W.
Whitaker, David
Rate after-effects fail to transfer cross-modally: evidence for distributed sensory timing mechanisms
title Rate after-effects fail to transfer cross-modally: evidence for distributed sensory timing mechanisms
title_full Rate after-effects fail to transfer cross-modally: evidence for distributed sensory timing mechanisms
title_fullStr Rate after-effects fail to transfer cross-modally: evidence for distributed sensory timing mechanisms
title_full_unstemmed Rate after-effects fail to transfer cross-modally: evidence for distributed sensory timing mechanisms
title_short Rate after-effects fail to transfer cross-modally: evidence for distributed sensory timing mechanisms
title_sort rate after-effects fail to transfer cross-modally: evidence for distributed sensory timing mechanisms
topic Human behavior; Sensory processing
url https://eprints.nottingham.ac.uk/49182/
https://eprints.nottingham.ac.uk/49182/
https://eprints.nottingham.ac.uk/49182/