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Nat Neurosci. 2002 Jan;5(1):72-5.

Pattern-motion responses in human visual cortex.

Author information

1
Psychology Department, Stanford University, Stanford, California 94305-2130, USA. huk@u.washington.edu

Abstract

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+.

PMID:
11731801
DOI:
10.1038/nn774
[Indexed for MEDLINE]

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