Re: [Freesurfer] single subject versus a group map in qdec

2011-03-31 Thread Douglas N Greve
Hi Emily, it is just performing a two "group" analysis, where one of your groups only has a single subject. There is nothing wrong with what you did, it all comes down to what conclusion you are trying to draw from it. I think it is ok for a case report. doug Emily Rogalski wrote: > Using q dec

Re: [Freesurfer] single subject versus a group map in qdec

2011-03-24 Thread Derin Cobia
I'm curious about the use of this method as well (thanks for the paper PPJ). Bruce/Doug, how exactly does QDEC treat this design? Can a single-subject comparison properly be done? Thanks. -Derin On Mar 23, 2011, at 4:11 PM, Pedro Paulo de Magalhães Oliveira Junior wrote: > We have dono s

Re: [Freesurfer] single subject versus a group map in qdec

2011-03-23 Thread Pedro Paulo de Magalhães Oliveira Junior
We have dono something like this in Cortical thickness reduction of normal appearing cortex in patients with polymicrogyria cheers, PPJ

[Freesurfer] single subject versus a group map in qdec

2011-03-23 Thread Emily Rogalski
Using q dec we have run a single patient versus a group of healthy control subjects (n=20ish) and found significant differences even after FDR correction. Could you describe the process qdec uses to compute these differences? Is it legitimate to report these single subject maps? Practically this i