Perception of biological motion

Author(s): Blake, R., Ahlstrom, U.

Journal/Book: Perception. 1997; 26: 207 Brondesbury Park, London, England NW2 5JN. Pion Ltd. 1539-1548.

Abstract: Boundary conditions for perception of biological motion were explored with the use of computer-generated point-light animation sequences. Perception of this unique form of structure from motion is immune to variations in dot contrast polarity, dot disparity, and spatial-frequency filtering. Biological motion is perceived in texture-defined animation sequences that presumably stimulate only second-order motion pathways, and it is undisturbed by dichoptic presentation of portions of the animation tokens separately to the two eyes.

Note: Article Ahlstrom V, Vanderbilt Univ, Dept Psychol, Nashville,TN 37240 USA

Keyword(s): VISUAL-PERCEPTION; 2ND-ORDER MOTION; APPARENT MOTION; LIGHT DISPLAYS; STIMULI; RECOGNITION; MECHANISMS; RESPONSES; EMOTION; DANCE

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