Perceptual stability and the selective adaptation of perceived and unperceived motion directions

Vision Research
Howard S HockS Hochstein

Abstract

Adaptation was studied in a paradigm in which the adapting stimulus was a variably biased version of a bistable apparent motion stimulus, a motion quartet, and the post-adaptation test stimulus was a "neutral" motion quartet. Either horizontal or vertical motion was perceived, never both at the same time. When only one of these was perceived during the entire adaptation phase of a trial, and the perceived motion was highly stable, adaptation effects were greater for the perceived than the unperceived motion directions (i.e., adaptation was selective to the perceived motion). However, when the perceived motion during adaptation was relatively unstable (i.e., when the perceived motion was more likely to spontaneously change directions), similar levels of adaptation were obtained for perceived as well as unperceived, but possible motion directions. Thus, adaptation occurs prior to the determination of which of the competing motion directions will be perceived. The relationship between the stability of the adapting percept and the selectivity of adaptation is explained in terms of differences in the activation of mutually inhibitory horizontal and vertical motion detectors.

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Citations

Nov 2, 2004·Experimental Brain Research·Sergei Gepshtein, Michael Kubovy
Aug 28, 2001·Perception & Psychophysics·L A GilroyA Ploeger
Dec 14, 2012·Cerebral Cortex·Caspar M SchwiedrzikLucia Melloni
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Dec 3, 2015·Proceedings of the National Academy of Sciences of the United States of America·Mark WexlerPascal Mamassian
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Jan 11, 2005·Trends in Cognitive Sciences·Nicola Bruno
Oct 5, 2014·Psychological Research·Daniel D Kurylo, Farhan Bukhari
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Mar 3, 2004·Vision Research·Reza RajimehrHossein Esteky
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Mar 8, 2012·Psychological Science·Jeroen J A van Boxtel, Christof Koch
Nov 20, 2015·Frontiers in Human Neuroscience·Joel S SnyderLucia Melloni
May 20, 2021·Journal of Vision·Nikos Gekas, Pascal Mamassian

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