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Sensory adaptation for timing perception
journal contribution
posted on 2023-06-09, 09:21 authored by Warrick RoseboomWarrick Roseboom, Daniel Linares, Shin'ya NishidaRecent sensory experience modifies subjective timing perception. For example, when visual events repeatedly lead auditory events, such as when the sound and video tracks of a movie are out of sync, subsequent vision-leads-audio presentations are reported as more simultaneous. This phenomenon could provide insights into the fundamental problem of how timing is represented in the brain, but the underlying mechanisms are poorly understood. Here, we show that the effect of recent experience on timing perception is not just subjective; recent sensory experience also modifies relative timing discrimination. This result indicates that recent sensory history alters the encoding of relative timing in sensory areas, excluding explanations of the subjective phenomenon based only on decision-level changes. The pattern of changes in timing discrimination suggests the existence of two sensory components, similar to those previously reported for visual spatial attributes: a lateral shift in the nonlinear transducer that maps relative timing into perceptual relative timing and an increase in transducer slope around the exposed timing. The existence of these components would suggest that previous explanations of how recent experience may change the sensory encoding of timing, such as changes in sensory latencies or simple implementations of neural population codes, cannot account for the effect of sensory adaptation on timing perception.
History
Publication status
- Published
File Version
- Published version
Journal
Proceedings of the Royal Society B: Biological SciencesISSN
0962-8452Publisher
The Royal SocietyExternal DOI
Issue
1805Volume
282Page range
20142833-20142833Department affiliated with
- Informatics Publications
Research groups affiliated with
- Sackler Centre for Consciousness Science Publications
Full text available
- Yes
Peer reviewed?
- Yes
Legacy Posted Date
2017-12-14First Open Access (FOA) Date
2017-12-14First Compliant Deposit (FCD) Date
2017-12-13Usage metrics
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