Dear all, If I sum up the Gray Matter Volume (GrayVol) in aparc.stats for left (or right) hemisphere for all the regions, am I expecting that number to be different from the volume of the Left-Cerebral-Cortex (or Right-Cerebral-Cortex)?
Am I correct in assuming that Left-Cerebral-Cortex is the same of lhCortex (lhCortexVol)? Are they anatomically equivalent? I have tried to sum up the GrayVol in aparc.stats for a few cases and obtained a number smaller than the volume of the Cerebral Cortex. Is that expected? Thank you in advance for your clarification, Dhinakaran.
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