
doi: 10.1038/nn774
pmid: 11731801
Physiological models of visual motion processing posit that 'pattern-motion cells' represent the direction of moving objects independent of their particular spatial pattern. We performed fMRI experiments to identify neuronal activity in the human brain selective for pattern motion. A protocol using adaptation to moving 'plaid' stimuli allowed us to separate pattern-motion responses from other types of motion-related activity within the same brain structures, and revealed strong pattern-motion selectivity in human visual area MT+. Reducing the perceptual coherence of the plaids yielded a corresponding decrease in pattern-motion responsivity, providing evidence that percepts of coherent motion are closely linked to the activity of pattern-motion cells in human MT+.
Adult, Male, Brain Mapping, Motion Perception, Neuropsychological Tests, Magnetic Resonance Imaging, Pattern Recognition, Visual, Humans, Photic Stimulation, Visual Cortex
Adult, Male, Brain Mapping, Motion Perception, Neuropsychological Tests, Magnetic Resonance Imaging, Pattern Recognition, Visual, Humans, Photic Stimulation, Visual Cortex
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