Journal
ATTENTION PERCEPTION & PSYCHOPHYSICS
Volume 82, Issue 3, Pages 1074-1087Publisher
SPRINGER
DOI: 10.3758/s13414-019-01899-x
Keywords
Time perception; Oddball; prediction; visual sensitivity
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Funding
- ARC Discovery Projects (awarded to DHA) [Does time seem to drag and fly?] Funding Source: Medline
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In the visual oddball paradigm, surprising inputs can seem expanded in time relative to unsurprising repeated events. A horizontal input embedded in a train of successive vertical inputs can, for instance, seem relatively protracted in time, even if all inputs are presented for an identical duration. It is unclear if this effect results from surprising events becoming apparently protracted, or from repeated events becoming apparently contracted in time. To disambiguate, we used a non-relative duration reproduction task, in which several standards preceded a test stimulus that had to be reproduced. We manipulated the predictability of test content over successive presentations. Overall, our data suggest that predictable stimuli induce a contraction of apparent duration (Experiments1,3, and4). We also examine sensitivity to test content, and find that predictable stimuli elicit less uptake of visual information (Experiments2and3). We discuss these findings in relation to the predictive coding framework.
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