Motala, Aysha, Heron, James, McGraw, Paul V., Roach, Neil W. and Whitaker, David  ORCID: https://orcid.org/0000-0002-8271-7552
2018.
Rate after-effects fail to transfer cross-modally: Evidence for distributed sensory timing mechanisms.
Scientific Reports
8
, 924.
10.1038/s41598-018-19218-z
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Abstract
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.
| Item Type: | Article |
|---|---|
| Date Type: | Publication |
| Status: | Published |
| Schools: | Schools > Optometry and Vision Sciences |
| Publisher: | Nature Publishing Group |
| ISSN: | 2045-2322 |
| Date of First Compliant Deposit: | 4 January 2018 |
| Date of Acceptance: | 19 December 2017 |
| Last Modified: | 23 Nov 2024 22:30 |
| URI: | https://orca.cardiff.ac.uk/id/eprint/107887 |
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