Duration estimates within a modality are integrated sub-optimally

Frontiers in Psychology
Ming Bo Cai, David M Eagleman

Abstract

Perceived duration can be influenced by various properties of sensory stimuli. For example, visual stimuli of higher temporal frequency are perceived to last longer than those of lower temporal frequency. How does the brain form a representation of duration when each of two simultaneously presented stimuli influences perceived duration in different way? To answer this question, we investigated the perceived duration of a pair of dynamic visual stimuli of different temporal frequencies in comparison to that of a single visual stimulus of either low or high temporal frequency. We found that the duration representation of simultaneously occurring visual stimuli is best described by weighting the estimates of duration based on each individual stimulus. However, the weighting performance deviates from the prediction of statistically optimal integration. In addition, we provided a Bayesian account to explain a difference in the apparent sensitivity of the psychometric curves introduced by the order in which the two stimuli are displayed in a two-alternative forced-choice task.

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Citations

Jun 14, 2016·Current Opinion in Behavioral Sciences·Jess Hartcher-O'BrienCarmel A Levitan
Sep 22, 2017·I-Perception·Kyoshiro Sasaki, Yuki Yamada
Dec 24, 2019·The Spanish Journal of Psychology·Miguel Ángel García-Pérez, Rocío Alcalá-Quintana
Sep 1, 2018·Scientific Reports·Yuki Murai, Yuko Yotsumoto
Apr 2, 2020·Behavior Research Methods·Miguel A García-Pérez, Rocío Alcalá-Quintana

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