Re: [Freesurfer] Comparing lists of activated regions between task>ctrl contrasts

2015-09-03 Thread Francesco Puccettone
Many thanks Doug and Christopher! Best, Francesco On 28 August 2015 at 16:34, Douglas Greve wrote: > > > On 8/27/15 1:20 PM, Francesco Puccettone wrote: > > Sorry, forgot to add one additional (related) question: > > is it ever correct to say "for region Y, the activations found for taskA > were

Re: [Freesurfer] Comparing lists of activated regions between task>ctrl contrasts

2015-08-28 Thread Douglas Greve
On 8/27/15 1:20 PM, Francesco Puccettone wrote: Sorry, forgot to add one additional (related) question: is it ever correct to say "for region Y, the activations found for taskA were smaller than for taskB" just based on the two contrasts /taskA>baseline /and /taskB>baseline/? Or is it necess

Re: [Freesurfer] Comparing lists of activated regions between task>ctrl contrasts

2015-08-28 Thread Douglas Greve
On 8/27/15 1:13 PM, Francesco Puccettone wrote: Hello all, I have seen several (older) papers that draw conclusions about the implication of a brain region in a given task by using the following logic: region X was activated in the contrast /taskA>baseline/, but not in the contrast /taskB>b

Re: [Freesurfer] Comparing lists of activated regions between task>ctrl contrasts

2015-08-27 Thread Watson, Christopher
aper will help with this question as well. From: freesurfer-boun...@nmr.mgh.harvard.edu on behalf of Francesco Puccettone Sent: Thursday, August 27, 2015 1:20 PM To: Freesurfer@nmr.mgh.harvard.edu Subject: Re: [Freesurfer] Comparing lists of activated regions betw

Re: [Freesurfer] Comparing lists of activated regions between task>ctrl contrasts

2015-08-27 Thread Francesco Puccettone
Sorry, forgot to add one additional (related) question: is it ever correct to say "for region Y, the activations found for taskA were smaller than for taskB" just based on the two contrasts *taskA>baseline *and *taskB>baseline*? Or is it necessary that taskA and taskB be contrasted directly to be

[Freesurfer] Comparing lists of activated regions between task>ctrl contrasts

2015-08-27 Thread Francesco Puccettone
Hello all, I have seen several (older) papers that draw conclusions about the implication of a brain region in a given task by using the following logic: region X was activated in the contrast *taskA>baseline*, but not in the contrast *taskB>baseline*; therefore, region X is implicated in/essentia