I'm planning to run a few different glms on surface data using glm_fit e.g. diagnosis * age; diagnosis * age * symptoms; diagnosis * age * somebehavioral variable etc.. 

Do I have to run mris_preproc using the specific fsgd file for each glm? My data are already qcached, and it seems that there may be an option (-cache--in?) that I can use on just one mris_preproc but I'm not sure if this is correct, or what the -cache--in option does. 

Thanks! 

Laura. 
--
--
Laura M. Tully, MA
Social Neuroscience & Psychopathology, Harvard University
Center for the Assessment and Prevention of Prodromal States, UCLA Semel Institute of Neuroscience
ltully@mednet.ucla.edu 
ltully@fas.harvard.edu
310-267-0170
--