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Updated: Jul 14, 2026

Eye Movements in Visual Duration Perception: Disentangling Stimulus from Time in Predecisional Processes
Published on: January 19, 2024
Perceptual processing time differences owing to visual field asymmetries
Anthony N Carlsen1, Dana Maslovat, Romeo Chua
1School of Human Kinetics, University of British Columbia, Vancouver, BC, Canada. carlsen@interchange.ubc.ca
Abstract:
Recent experiments have reported increased endpoint accuracy for movements performed in the lower vs. the upper visual field, suggesting that there is superior feedback-based processing in the lower visual field owing to a visuomotor subsystem processing advantage. Differences, however, in the perceptual subsystem may also play a role in the lower visual field advantage. In this study, participants performed an inspection time task, a measure of perceptual processing time, requiring the identification of an asymmetrical 'pi' stimulus presented in the central, upper, or the lower visual field for a brief period. Significant differences between the percentage of correct identifications between visual fields indicated a lower visual field advantage over upper visual field for perceptual identification.
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