Perceived Asynchrony of Rhythmic Stimuli Affects Pupil Diameter and Smooth Pursuit Eye Movements

Published: April 24, 2025

Language: Английский

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Pupil diameter as an indicator of sound pair familiarity after statistically structured auditory sequence

Scientific Reports, Journal Year: 2024, Volume and Issue: 14(1)

Published: April 16, 2024

Abstract Inspired by recent findings in the visual domain, we investigated whether stimulus-evoked pupil dilation reflects temporal statistical regularities sequences of auditory stimuli. We conducted two preregistered pupillometry experiments (experiment 1, n = 30, 21 females; experiment 2, 31, 22 females). In both experiments, human participants listened to spoken vowels conditions. first condition, stimuli were presented a random order and, second same sequence structured pairs. The replicated with modified timing and number without being informed about any structure. sound-evoked during subsequent familiarity task indicated that learned vowel pairs condition. However, diameter did not differ according regularity pair This contrasts similar studies, emphasizing susceptibility effects statistically experimental design settings domain. sum, our suggest may serve as an indicator sound but does invariably respond task-irrelevant transition probabilities sequences.

Language: Английский

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Influence of rhythmic contexts on perception: No behavioral and eye- tracker evidence for rhythmic entrainment

Published: July 25, 2024

Entrainment theories propose that attention inherently oscillates between moments of attentional enhancement and disengagement. Consequently, perceptual response benefits have been reported in tasks with a rhythmic structure. In the present study, we report two preregistered auditory experiments attempting to replicate previous supporting behavioral evidence entrainment theories. addition, incorporated eye-tracker measures. Both Experiment 1 (duration discrimination task) 2 (pitch showed no phase-specific benefit sequences compared arrhythmic ones. Importantly, tonic larger pupil size for conditions was observed irrespective target phase, suggesting higher processing demands or arousal state imposed by sustained uncertain context. Overall, results call into question whether predicted are generalizable across all experimental designs paradigms. On contrary, our findings join large group studies failed foundational entrainment.

Language: Английский

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Influence of rhythmic contexts on perception: No behavioral and eye-tracker evidence for rhythmic entrainment

Consciousness and Cognition, Journal Year: 2024, Volume and Issue: 126, P. 103789 - 103789

Published: Nov. 1, 2024

Language: Английский

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