Attention During Adaptation Weakens Negative Afterimages

The effect of attention during adaptation on subsequent negative afterimages was examined. One of 2 overlapped outline figures was attended during a 7-10-s adaptation period. When the figures were readily perceptually segregated (on the basis of color or motion), the subsequent afterimages were init...

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Bibliographic Details
Published in:Journal of experimental psychology. Human perception and performance 2003-08, Vol.29 (4), p.793-807
Main Authors: Suzuki, Satoru, Grabowecky, Marcia
Format: Article
Language:English
Subjects:
Adaptation
Adaptation, Psychological
Affect
Afterimage
Attention
Biological and medical sciences
Cognition & reasoning
Fixation, Ocular
Fundamental and applied biological sciences. Psychology
Human
Humans
Perception
Psychological aspects
Psychology. Psychoanalysis. Psychiatry
Psychology. Psychophysiology
Selective Attention
Sensory Adaptation
Vision
Visual Perception
Visualization
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Summary:The effect of attention during adaptation on subsequent negative afterimages was examined. One of 2 overlapped outline figures was attended during a 7-10-s adaptation period. When the figures were readily perceptually segregated (on the basis of color or motion), the subsequent afterimages were initially weaker for the previously attended figure. This effect was confirmed by demonstrations that the onset of a single afterimage was delayed when an afterimage inducer was attended during adaptation compared with when a central digit stream or an overlapped (brightness-balanced) figure that did not generate an afterimage was attended. The attention effect was further confirmed using a criterion-independent (dot-integration) paradigm. The fact that selective attention during adaptation weakened or delayed afterimages suggests that attention primarily facilitates the adaptation of polarity-independent processes that modulate the visibility of afterimages rather than facilitating the adaptation of polarity-selective processes that mediate the formation of afterimages.
ISSN:0096-1523
1939-1277
DOI:10.1037/0096-1523.29.4.793