2000 | E. Grossman, M. Donnelly, R. Price, D. Pickens, V. Morgan, G. Neighbor, and R. Blake
This study investigates the neural mechanisms involved in the perception of biological motion using functional magnetic resonance imaging (fMRI). The researchers compared brain activity during the viewing of point-light figures to that during coherent motion and kinetic boundary perception. They found that the brain regions activated by biological motion were distinct from those activated by coherent motion and kinetic boundaries. Specifically, a region on the ventral bank of the superior-temporal sulcus (STS) was uniquely activated by biological motion, located lateral and anterior to the MT/MST complex and anterior to the kinetic-occipital (KO) region. This region was more frequently localized in the right hemisphere. Additionally, a small region in the medial cerebellum was also active during the viewing of biological-motion sequences. These findings suggest that there are specialized neural mechanisms in the human brain for analyzing the kinematics defining biological motion.This study investigates the neural mechanisms involved in the perception of biological motion using functional magnetic resonance imaging (fMRI). The researchers compared brain activity during the viewing of point-light figures to that during coherent motion and kinetic boundary perception. They found that the brain regions activated by biological motion were distinct from those activated by coherent motion and kinetic boundaries. Specifically, a region on the ventral bank of the superior-temporal sulcus (STS) was uniquely activated by biological motion, located lateral and anterior to the MT/MST complex and anterior to the kinetic-occipital (KO) region. This region was more frequently localized in the right hemisphere. Additionally, a small region in the medial cerebellum was also active during the viewing of biological-motion sequences. These findings suggest that there are specialized neural mechanisms in the human brain for analyzing the kinematics defining biological motion.