Six experiments demonstrate a visual dynamic illusion. Previous work has shown that in 2-dimensional (2D) drawing movements, tangential velocity and radius of curvature covary in a constrained manner. The velocity of point stimuli is perceived as uniform if and only if this biological constraint is satisfied. The illusion is conspicuous: The variations of velocity in the stimuli exceed 200%. Yet movements are perceived as uniform. Conversely, 2D stimuli moving at constant velocity are perceived as strongly nonuniform. The illusion is robust: Exposure to true constant velocity fails to suppress it. Results cannot be explained entirely by the kinetic depth effect. The illusion is evidence of a coupling between motor and perceptual processes: Even in the absence of any intention to perform a movement, certain properties of the motor system implicitly influence perceptual interpretation of the visual stimulus

Viviani, P., Stucchi, N. (1992). Biological Movements Look Uniform: Evidence of Motor-Perceptual Interactions. JOURNAL OF EXPERIMENTAL PSYCHOLOGY-HUMAN PERCEPTION AND PERFORMANCE, 18(3), 603-623 [10.1037//0096-1523.18.3.603].

Biological Movements Look Uniform: Evidence of Motor-Perceptual Interactions

STUCCHI, NATALE ADOLFO
1992

Abstract

Six experiments demonstrate a visual dynamic illusion. Previous work has shown that in 2-dimensional (2D) drawing movements, tangential velocity and radius of curvature covary in a constrained manner. The velocity of point stimuli is perceived as uniform if and only if this biological constraint is satisfied. The illusion is conspicuous: The variations of velocity in the stimuli exceed 200%. Yet movements are perceived as uniform. Conversely, 2D stimuli moving at constant velocity are perceived as strongly nonuniform. The illusion is robust: Exposure to true constant velocity fails to suppress it. Results cannot be explained entirely by the kinetic depth effect. The illusion is evidence of a coupling between motor and perceptual processes: Even in the absence of any intention to perform a movement, certain properties of the motor system implicitly influence perceptual interpretation of the visual stimulus
Articolo in rivista - Articolo scientifico
perception, biological movement, motor-perceptul interaction
English
1992
18
3
603
623
none
Viviani, P., Stucchi, N. (1992). Biological Movements Look Uniform: Evidence of Motor-Perceptual Interactions. JOURNAL OF EXPERIMENTAL PSYCHOLOGY-HUMAN PERCEPTION AND PERFORMANCE, 18(3), 603-623 [10.1037//0096-1523.18.3.603].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10281/34390
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