Re: [Freesurfer] Hi, a question on lgi

2008-11-26 Thread Marie Schaer
Dear Yuanchao, I believe that in the case of polymicrogyric cortex, the lGI will decrease because the total cortical surface (i.e. the above term of the lGI equation) is drastically decreased by the numerous and shallower sulci. However, I did not have any occasion to formally challenge

[Freesurfer] Hi, a question on lgi

2008-11-26 Thread Zhangyuanchao
Dear Mr or Ms, If a subject was identified with severe polymicrogyria, which is a brain malformation marked by development of numerous microgyri, what will the lgi of the subject behave? I want to know whether the lgi of the subject would increase or decrease compared with that of the brain of