PowerPoint Presentation - Brain Areas from Brain Imaging

Localization: mapped retinotopic areas

Sulci

Gyri

-10

V2d

V2v

V2d

V2v

V4v

V3A

Automatic volumetric segmentation of human retinotopic cortex

�Automatic

�No cortical surface required

�Directly supplies volumes for VOI analysis

Dumoulin et al. (2003)

V1, V2, V3/VP, V4v, V3A, VO (V8)


	Our specific version developed by Dumoulin, requires no cortical surface reconstruction and yields a volume of interest analysis directly. Slide with three vectors, based on rate of change: polar angle, eccentricity and aMRI. VOI involves collapsing the voxels in each visual area, of each subject, and averaging across subjects.
	Unfolded/inflated
	Medial posterior
	Parietal, temporal, occipital
	Actual surface for each SS as marked