Title: Motion-responsive regions of the human brain
Authors: Sunaert, Stefan ×
Van Hecke, Paul
Marchal, Guy
Orban, Guy #
Issue Date: Aug-1999
Series Title: Experimental brain research. Experimentelle Hirnforschung. Expérimentation cérébrale vol:127 issue:4 pages:355-70
Abstract: Functional magnetic resonance imaging was used to map motion responsive regions of the human brain by contrasting passive viewing of moving and stationary randomly textured patterns. Regions were retained as motion responsive if they reached significance either in the group analysis or in the majority of hemispheres in single-subject analysis. They include well-known regions, such as V1, hMT/V5+, and hV3A, but also several occipito-temporal, occipito-parietal, parietal, and frontal regions. The time course of the activation was similar in most of these regions. Motion responses were nearly identical for binocular and monocular presentations. Flicker-induced-activation introduced a dichotomy amongst these motion responsive regions. Early occipital and occipito-temporal regions responded well to flicker, while flicker responses gradually vanished as one moved to occipito-parietal and then parietal regions. Finally, over a more than four-fold range, stimulus diameter had little effect on the motion activations, except in V1.
ISSN: 0014-4819
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Radiology
Research Group Neurophysiology
Translational MRI (+)
× corresponding author
# (joint) last author

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