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Author(s): Nathércia L. Torres
Carlos dos Santos Luiz
São Luís Castro
Susana Silva
Title: The effects of visual movement on beat-based vs. duration-based temporal perception
Issue Date: 2019
Abstract: It is known that moving visual stimuli (bouncing balls) have an advantage over static visual ones(flashes) in sensorimotor synchronization, such that the former match auditory beeps in drivingsynchronization while the latter do not. This occurs in beat-based synchronization but not in beatbased purely perceptual tasks, suggesting that the advantage is action-specific. The main goal of thisstudy was to test the advantage of moving over static visual stimuli in a different perceptual timingsystem - duration-based perception - to determine whether the advantage is action-specific in abroad sense, i.e., if it excludes both beat-based and duration-based perception. We asked a group ofparticipants to perform different tasks with three stimulus types: auditory beeps, visual bouncingballs (moving) and visual flashes (static). First, participants performed a duration-based perceptiontask in which they judged whether intervals were speeding up or slowing down; then they did asynchronization task with isochronous sequences; finally, they performed a beat-based perceptiontask in which they judged whether sequences sounded right or wrong. Bouncing balls outperformedflashes and matched beeps in synchronization. In the duration-based perceptual task, beeps, ballsand flashes were equivalent, but in beat-based perception beeps outperformed balls and flashes.Our findings suggest that the advantage of moving over static visual stimuli is grounded on actionrather than perception in a broad sense, in that it is absent in both beat-based and duration-basedperception.
Document Type: Artigo em Revista Científica Internacional
Rights: restrictedAccess
Appears in Collections:FPCEUP - Artigo em Revista Científica Internacional

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