Journal
NEUROREPORT
Volume 16, Issue 10, Pages 1037-1041Publisher
LIPPINCOTT WILLIAMS & WILKINS
DOI: 10.1097/00001756-200507130-00002
Keywords
biological motion; functional magnetic resonance imaging; local motion; ventral pathway
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Funding
- NEI NIH HHS [R01 EY007861] Funding Source: Medline
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The perception of biological motion combines the analysis of form and motion. However, patient observations by Vaina et al. and psychophysical experiments by Beintema and Lappe showed that humans could perceive human movements (a walker) without local image motion information. Here, we examine the specificity of brain regions responsive to a biological motion stimulus without local image motion, using functional magnetic resonance imaging. We used the stimulus from Beintema and Lappe and compared the brain activity with a point-light display that does contain local motion information and was often used in previous studies. Recent imaging studies have identified areas sensitive to biological motion in both the motion-processing and the form-processing pathways of the visual system. We find a similar neuronal network engaged in biological motion perception, but more strongly manifested in form-processing than in motion-processing areas, namely, fusi-form-/occipital face area and extrastriate body area.
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