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The duration of 3-D form analysis in transformational apparent motion

MPG-Autoren
http://pubman.mpdl.mpg.de/cone/persons/resource/persons84264

Tse,  PU
Department Physiology of Cognitive Processes, Max Planck Institute for Biological Cybernetics, Max Planck Society;

http://pubman.mpdl.mpg.de/cone/persons/resource/persons84063

Logothetis,  NK
Department Physiology of Cognitive Processes, Max Planck Institute for Biological Cybernetics, Max Planck Society;

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Zitation

Tse, P., & Logothetis, N. (2002). The duration of 3-D form analysis in transformational apparent motion. Perception Psychophysics, 64(2), 244-265. doi:10.3758/BF03195790.


Zitierlink: http://hdl.handle.net/11858/00-001M-0000-0013-E024-8
Zusammenfassung
Transformational apparent motion (TAM) occurs when a figure changes discretely from one configuration to another overlapping configuration. Rather than an abrupt shape change, the initial shape is perceived to transform smoothly into the final shape as if animated by a series of intermediate shapes. We find that TAM follows an analysis of form that takes 80-140 msec. Form analysis can function both at and away from equiluminance and can occur over contours defined by uniform regions as well as outlines. Moreover, the forms analyzed can be 3-D, resulting in motion paths that appear to smoothly project out from or into the stimulus plane. The perceived transformation is generally the one that involves the least change in the shape or location of the initial figure in a 3-D sense. We conclude that perception of TAM follows an analysis of 3-D form that takes ≈100msec. This stage of form analysis may be common to both TAM and second-order motion.