Re: [Freesurfer] Modifying Regression Analysis

2011-08-09 Thread Douglas N Greve
Oh, sorry, I had misunderstood your question. Yes, you will need to create a new paradigm file and a new analysis to go with it. The actual analysis should not take that much time because all the preprocessing is already done. It will probably take 15-20 min per subject. doug Adam Nitenson wrot

Re: [Freesurfer] Modifying Regression Analysis

2011-08-09 Thread Adam Nitenson
I'm not sure how I could do that considering that, in the paradigm file, the 1, 3, 5, and 7 loads are all designated with the same condition number (2), while the weight is what varies. My current contrast (2vFix) encompassed all four loads so I'm not sure how I could just make a new contrast witho

Re: [Freesurfer] Modifying Regression Analysis

2011-08-08 Thread Douglas N Greve
Hi Adam, why not just make a new contrast with 1, 3, and 5? You can then run selxavg3-sess -- it will recognized that you only added a contrast and just re-run the contrast (should be pretty quick). doug Adam Nitenson wrote: > Hi Doug and Freesurfers, > > I am currently analyzing data acqu

[Freesurfer] Modifying Regression Analysis

2011-08-08 Thread Adam Nitenson
Hi Doug and Freesurfers, I am currently analyzing data acquired from the Sternberg memory task, which involves memorizing sets of 1, 3, 5, and 7 letters. I have created an analysis (see attached analysis.info and paradigm example) which allows me to create maps of the load-based activation wh