The Something-vs-fix of the original paradigm will not relate to the 2-v-fix of the slope test, though they should look something like the 1-v-fix of the slope test. Have you looked at that? The 2-v-fix will look more like a difference in the loads from the original (eg, 7-1).
doug
Adam Nitenson wrote:
The supposed "load regression map" that I generated did not make sense given the maps of the individual loads vs fix. I attached the original paradigm (run1.par), the slope paradigm which I tried to adapt from the other thread (SIRP_Run1_LoadSlopeTest.par) and an image showing the 1vfix, 3vfix, 5vfix, and 7vfix images from the original paradigm, as well as a large 2vFix image from the new paradigm, which I thought would have shown the within subjects regression (condition 2 being the weighted loads). "Desired results" was a poor description...it is more that the results do not seems to represent the load regression based on the individual load maps.
-Adam
what do you mean that you were not able to get the desired result? doug
Adam Nitenson wrote:
Hi Doug and Freesurfers,
Now that I have re-processed some of my data in Stable 5, I wouldlike to re-open a previous problem I was trying to tackle:
" We are using the Sternberg Item Recognition Paradigm in our study, which involves the memorization and recognition of groups of 1, 3, 5, and 7 letters. Each run has two sets of each condition (load). We want to determine if any regions of the brain activate in a linear pattern with increased task load (# of letters). I have already done regression analyses using genotype, but that was between subjects, while this analysis would be within subjects. Does anyone know how I could structure an analysis that would allow me to look at this? Is this something I have to do at the mkanalysis-sess level?"
I had tried doing this in Stable 4 using the method described herehttps://mail.nmr.mgh.harvard.edu/pipermail//freesurfer/2010-December/016557.... However, I was unable to generate the desired results, so I decided to switch over to Stable 5 as suggested.
Thanks,
Adam
---------------------------- Original Message
Subject: Re: [Freesurfer] Regression: Activation as a function of condition From: "Douglas N Greve" greve@nmr.mgh.harvard.edu Date: Tue, January 11, 2011 11:52 am To: "Adam Nitenson" nitenson@nmr.mgh.harvard.edu
You don't need to re-unpack. you don't run recon-all on the functional, only the anatomicals.
Adam Nitenson wrote:
So this means I will have to start at the unpacksdcmdir command and then recon-all to rerun the functionals?
You don't need to re-run the anatomicals, but you will need to rerun the functionals.
doug
Adam Nitenson wrote:
> Hmm...it appears that we might need to make the transition over to > Stable > 5 then. > > Would I have to reprocess all Stable 4 subjects again in Stable 5 > (including the whole recon-all from bourget) process, or is there > some > sort of jumping off point from which I can start using the new > stable? > > Thanks, > > Adam > > > > > > >> you can't do it in stable4, but you can in stable 5. >> >> doug >> >> >> Adam Nitenson wrote: >> >> >> >> >>> Hello Freesurfers, >>> >>> We are using the Sternberg Item Recognition Paradigm in our >>> study, >>> which involves the memorization and recognition of groups of 1, 3, >>> 5, >>> and 7 letters. Each run has two sets of each condition (load). We >>> want to determine if any regions of the brain activate in a linear >>> pattern with increased task load. I have already done regression >>> analyses using genotype, but that was between subjects, while this >>> analysis would be within subjects. Does anyone know how I could >>> structure an analysis (STABLE 4) that would allow me to look at >>> this? >>> Is this something I have to do at the mkanalysis-sess level? >>> >>> >>> Thanks, >>> >>> Adam Nitenson, B.S. >>> Brain Genomics Lab >>> Massachusetts General Hospital >>> _______________________________________________ >>> Freesurfer mailing list >>> Freesurfer@nmr.mgh.harvard.edu >>> https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer >>> >>> >>> >>> >>> >>> >>> >> -- >> Douglas N. Greve, Ph.D. >> MGH-NMR Center >> greve@nmr.mgh.harvard.edu >> Phone Number: 617-724-2358 >> Fax: 617-726-7422 >> >> Bugs: surfer.nmr.mgh.harvard.edu/fswiki/BugReporting >> FileDrop: www.nmr.mgh.harvard.edu/facility/filedrop/index.html >> >> >> >> >> >> >> > Adam Nitenson, B.S. > Brain Genomics Lab > Massachusetts General Hospital > > > > >
>
Douglas N. Greve, Ph.D. MGH-NMR Center greve@nmr.mgh.harvard.edu Phone Number: 617-724-2358 Fax: 617-726-7422
Bugs: surfer.nmr.mgh.harvard.edu/fswiki/BugReporting FileDrop: www.nmr.mgh.harvard.edu/facility/filedrop/index.html
Adam Nitenson, B.S. Brain Genomics Lab Massachusetts General Hospital
-- Douglas N. Greve, Ph.D. MGH-NMR Center greve@nmr.mgh.harvard.edu Phone Number: 617-724-2358 Fax: 617-726-7422
Bugs: surfer.nmr.mgh.harvard.edu/fswiki/BugReporting FileDrop: www.nmr.mgh.harvard.edu/facility/filedrop/index.html
Adam Nitenson, B.S. Brain Genomics Lab Massachusetts General Hospital
Adam Nitenson, B.S. Brain Genomics Lab Massachusetts General Hospital _______________________________________________ Freesurfer mailing list Freesurfer@nmr.mgh.harvard.edu https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer
-- Douglas N. Greve, Ph.D. MGH-NMR Center greve@nmr.mgh.harvard.edu Phone Number: 617-724-2358 Fax: 617-726-7422
Bugs: surfer.nmr.mgh.harvard.edu/fswiki/BugReporting FileDrop: www.nmr.mgh.harvard.edu/facility/filedrop/index.html
Adam Nitenson, B.S. Brain Genomics Lab Massachusetts General Hospital