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The Journal of Neuroscience, March 15, 2006, 26(11):2894-2906; doi:10.1523/JNEUROSCI.4915-05.2006

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Behavioral/Systems/Cognitive
A Model of Biological Motion Perception from Configural Form Cues

Joachim Lange and Markus Lappe

Department of Psychology II, Westfaelische Wilhelms University, 48149 Muenster, Germany

Correspondence should be addressed to Joachim Lange, Department of Psychology II, Westfaelische Wilhelms University, Fliednerstrasse 21, 48149 Muenster, Germany. Email: jolange{at}psy.uni-muenster.de

Biological motion perception is the compelling ability of the visual system to perceive complex human movements effortlessly and within a fraction of a second. Recent neuroimaging and neurophysiological studies have revealed that the visual perception of biological motion activates a widespread network of brain areas. The superior temporal sulcus has a crucial role within this network. The roles of other areas are less clear. We present a computational model based on neurally plausible assumptions to elucidate the contributions of motion and form signals to biological motion perception and the computations in the underlying brain network. The model simulates receptive fields for images of the static human body, as found by neuroimaging studies, and temporally integrates their responses by leaky integrator neurons. The model reveals a high correlation to data obtained by neurophysiological, neuroimaging, and psychophysical studies.

Key words: object recognition; human gait perception; configural processing; model; biological motion; visual motion

Received Nov. 17, 2005; revised Jan. 12, 2006; accepted Jan. 27, 2006.

Correspondence should be addressed to Joachim Lange, Department of Psychology II, Westfaelische Wilhelms University, Fliednerstrasse 21, 48149 Muenster, Germany. Email: jolange{at}psy.uni-muenster.de




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