The motion aftereffect reloaded

The motion aftereffect is a robust illusion of visual motion resulting from exposure to a moving pattern. There is a widely accepted explanation of it in terms of changes in the response of cortical direction-selective neurons. Research has distinguished several variants of the effect. Converging re...

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Bibliographic Details
Published in:Trends in cognitive sciences 2008-12, Vol.12 (12), p.481-487
Main Authors: Mather, George, Pavan, Andrea, Campana, Gianluca, Casco, Clara
Format: Article
Language:English
Subjects:
Animals
Biological and medical sciences
Brain Mapping
Cerebral Cortex - physiology
Evoked Potentials, Visual - physiology
Figural Aftereffect - physiology
Fundamental and applied biological sciences. Psychology
Humans
Magnetic Resonance Imaging
Motion Perception - physiology
Nerve Net - physiology
Neurology
Neurons - physiology
Optical Illusions - physiology
Orientation - physiology
Pattern Recognition, Visual - physiology
Perception
Psychiatry
Psychology. Psychoanalysis. Psychiatry
Psychology. Psychophysiology
Psychophysics
Transcranial Magnetic Stimulation
Vision
Visual Pathways - physiology
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Summary:The motion aftereffect is a robust illusion of visual motion resulting from exposure to a moving pattern. There is a widely accepted explanation of it in terms of changes in the response of cortical direction-selective neurons. Research has distinguished several variants of the effect. Converging recent evidence from different experimental techniques (psychophysics, single-unit recording, brain imaging, transcranial magnetic stimulation, visual evoked potentials and magnetoencephalography) reveals that adaptation is not confined to one or even two cortical areas, but occurs at multiple levels of processing involved in visual motion analysis. A tentative motion-processing framework is described, based on motion aftereffect research. Recent ideas on the function of adaptation see it as a form of gain control that maximises the efficiency of information transmission at multiple levels of the visual pathway.
ISSN:1364-6613
1879-307X
DOI:10.1016/j.tics.2008.09.002