AcceptedDiLucaM_RhodesD_6_June_2016_SR REFs.pdf (510.38 kB)
Optimal perceived timing: integrating sensory information with dynamically updated expectations
journal contribution
posted on 2023-06-09, 02:07 authored by Massimiliano Di Luca, Darren RhodesThe environment has a temporal structure, and knowing when a stimulus will appear translates into increased perceptual performance. Here we investigated how the human brain exploits temporal regularity in stimulus sequences for perception. We find that the timing of stimuli that occasionally deviate from a regularly paced sequence is perceptually distorted. Stimuli presented earlier than expected are perceptually delayed, whereas stimuli presented on time and later than expected are perceptually accelerated. This result suggests that the brain regularizes slightly deviant stimuli with an asymmetry that leads to the perceptual acceleration of expected stimuli. We present a Bayesian model for the combination of dynamically-updated expectations, in the form of a priori probability of encountering future stimuli, with incoming sensory information. The asymmetries in the results are accounted for by the asymmetries in the distributions involved in the computational process.
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Publication status
- Published
File Version
- Accepted version
Journal
Scientific ReportsISSN
2045-2322Publisher
Nature Publishing GroupExternal DOI
Issue
28563Volume
6Department affiliated with
- Informatics Publications
Full text available
- Yes
Peer reviewed?
- Yes
Legacy Posted Date
2016-07-12First Open Access (FOA) Date
2016-07-12First Compliant Deposit (FCD) Date
2016-07-12Usage metrics
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