sulc = "average convexity" from our 1999 reconII paper. Essentially measures the depth/height of each point above the average surface.

curv = smoothed mean curvature.

jacobian_white = the jacobian of the spherical transform. Measures the amount of distortion needed to warp a subject into register with the atlas.

On Mon, 5 Nov 2007, Xiangchuan Chen wrote:

Hi all,

I am using Qdec to examine the anatomical differences between two groups
of subjects. The surface-based measures I can select are thickness, area, area.pial, sulc, curv, and jacobian_white. Could anybody tell me what anatomical features the later three (sulc, curv, and jacobian_white) actually measure? >
Thanks in advance,

Xiangchuan Chen

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