University of Leicester
Browse
Bruno_ProceedingsB_2023.pdf (923.4 kB)

A purely visual adaptation to motion can differentiate between perceptual timing and interval timing.

Download (923.4 kB)
journal contribution
posted on 2023-07-03, 11:26 authored by Aurelio Bruno, Federico G Segala, Daniel H Baker
It is unclear whether our brain extracts and processes time information using a single-centralized mechanism or through a network of distributed mechanisms, which are specific for modality and time range. Visual adaptation has previously been used to investigate the mechanisms underlying time perception for millisecond intervals. Here, we investigated whether a well-known duration after-effect induced by motion adaptation in the sub-second range (referred to as 'perceptual timing') also occurs in the supra-second range (called 'interval timing'), which is more accessible to cognitive control. Participants judged the relative duration of two intervals after spatially localized adaptation to drifting motion. Adaptation substantially compressed the apparent duration of a 600 ms stimulus in the adapted location, whereas it had a much weaker effect on a 1200 ms interval. Discrimination thresholds after adaptation improved slightly relative to baseline, implying that the duration effect cannot be ascribed to changes in attention or to noisier estimates. A novel computational model of duration perception can explain both these results and the bidirectional shifts of perceived duration after adaptation reported in other studies. We suggest that we can use adaptation to visual motion as a tool to investigate the mechanisms underlying time perception at different time scales.

Funding

Temporal Aspects of Gaze Perception in Autism

Wellcome Trust

Find out more...

History

Author affiliation

School of Psychology and Vision Science, University of Leicester

Version

  • VoR (Version of Record)

Published in

Proceedings. Biological sciences

Volume

290

Issue

2000

Pagination

20230415

Publisher

The Royal Society

issn

0962-8452

eissn

1471-2954

Copyright date

2023

Available date

2023-07-03

Spatial coverage

England

Language

eng

Usage metrics

    University of Leicester Publications

    Categories

    Licence

    Exports

    RefWorks
    BibTeX
    Ref. manager
    Endnote
    DataCite
    NLM
    DC