Title: A higher order motion region in human inferior parietal lobule: evidence from fMRI
Authors: Claeys, Kristl ×
Lindsey, Delwin T
De Schutter, Erik
Orban, Guy A #
Issue Date: Oct-2003
Publisher: Cell Press
Series Title: Neuron vol:40 issue:3 pages:631-642
Abstract: The proposal that motion is processed by multiple mechanisms in the human brain has received little anatomical support so far. Here, we compared higher- and lower-level motion processing in the human brain using functional magnetic resonance imaging. We observed activation of an inferior parietal lobule (IPL) motion region by isoluminant red-green gratings when saliency of one color was increased and by long-range apparent motion at 7 Hz but not 2 Hz. This higher order motion region represents the entire visual field, while traditional motion regions predominantly process contralateral motion. Our results suggest that there are two motion-processing systems in the human brain: a contralateral lower-level luminance-based system, extending from hMT/V5+ into dorsal IPS and STS, and a bilateral higher-level saliency-based system in IPL.
ISSN: 0896-6273
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Laboratory for Muscle Diseases and Neuropathies
× corresponding author
# (joint) last author

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