Visuospatial attention and redundancy gain
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Updated: Jun 27, 2026

Measuring Attention and Visual Processing Speed by Model-based Analysis of Temporal-order Judgments
Published on: January 23, 2017
Jeff Miller1, Daniela Beutinger, Rolf Ulrich
1Department of Psychology, University of Otago, Dunedin, New Zealand. miller@psy.otago.ac.nz
Abstract:
Two experiments investigated the effect of visuospatial attention on redundancy gain in simple reaction time tasks. In each trial participants were given a central arrow cue indicating where a stimulus would most likely be presented (i.e., upper or lower half of the display in Experiment 1; left or right half of the display in Experiment 2). Then, a single stimulus or two redundant stimuli could be presented in either expected or unexpected locations. Replicating previous findings, responses were faster when stimuli appeared in expected rather than unexpected locations, and they were also faster when two redundant stimuli were presented than when only one was. Critically, redundancy gain was statistically equivalent for stimuli in expected and unexpected locations, suggesting that the effect of redundancy gain arises after the perceptual processes influenced by the allocation of visuospatial attention.
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