Aftereffects in touch
Author(s) -
Astrid M. L. Kappers,
Wouter Tiest
Publication year - 2015
Publication title -
scholarpedia
Language(s) - English
Resource type - Journals
ISSN - 1941-6016
DOI - 10.4249/scholarpedia.32730
Subject(s) - illusion , stimulus (psychology) , perception , waterfall , psychology , afterimage , computer vision , communication , cognitive psychology , computer science , cartography , geography , neuroscience , image (mathematics)
An aftereffect is the change in the perception of a (test) stimulus after prolonged stimulation with an (adaptation) stimulus. Usually, this change is in the negative direction, that is, in a direction opposite to that of the adaptation stimulus. Aftereffects are often fast and strong. A well-known example in vision is the waterfall illusion: when looking at trees after staring at a waterfall for a minute or more, the subsequently viewed trees seem to move upwards (Addams, 1834; Swanston and Wade, 1994). Also touch is susceptible to strong aftereffects: temperature, roughness, shape, curvature, motion and size of an object all give rise to aftereffects in touch
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