Babak Ardekani,

Thank you very much for your response. I have one more question.

If CC length of subject 1 is 'X' cm and subject 2 is 'Y' cm and Y>X. After 100 thickness points are obtained, when i want to compare thickness point 87 of X with point 87 of Y. I may not be looking at the same region of the brain that particular point of CC is linked to.

For example point 87 in CC of Y might include prefrontal and mid frontal gyrus, where as 87 in CC of X might only include prefrontal gyrus because of smaller CC length and segment area. 

This is where I am having problem understanding. I would very much appreciate it if you could please help.

Thank you once again.

Regards,
Keerthana