Re: [Freesurfer] Modeling cortical thickness question

2014-12-09 Thread Douglas N Greve
Do you mean a polynomial of age? If so, just add age age^2 and age^3 as variables in the FSGD file doug On 12/09/2014 02:04 PM, Alexandra Tanner wrote: > Hello Freesurfers, > > Our group is wondering if any of you know whether it is possible to model > cortical thickness as a third order polynom

[Freesurfer] Modeling cortical thickness question

2014-12-09 Thread Alexandra Tanner
Hello Freesurfers, Our group is wondering if any of you know whether it is possible to model cortical thickness as a third order polynomial? The specific question is: we are looking at whether there is a hyperbolic relationship between cortical thickness and date of birth among a cohort of individ