The position and topography of the human colour centre as revealed by functional magnetic resonance imaging

D. McKeefry
1997 Brain  
We used a colour Mondrian-an abstract scene with no recognizable objects-and its achromatic version to image the change in blood oxygenation in the brains of 12 human subjects, with the aim of learning more about the position and variability of the colour centre in the human brain. The results showed a consistent association of colour stimulation with activation of an area that is distinct from the primary visual areas, and lies in the ventral occipitotemporal cortex; we refer to it as human
more » ... r to it as human V4. The position of human V4, as defined on functional grounds, varies between individuals in absolute terms but is invariably found on the lateral aspect of the collateral sulcus on the fusiform gyrus. There was no Keywords: functional magnetic resonance imaging; area V4; human colour vision Abbreviations: BOLD ϭ blood oxygenation level dependent; EPI ϭ echo planar imaging; fMRI ϭ functional magnetic resonance imaging; SPM ϭ statistical parametric mapping; TE ϭ time to echo; TR ϭ time to repeat
doi:10.1093/brain/120.12.2229 pmid:9448578 fatcat:ct3dojcvvbepbcendjxdaams6q