On Wed, Sep 19, 2012 at 4:56 PM, J.A. Etzel <[email protected]> wrote:
> This is far too general of a question: which steps are necessary depends > upon the precise hypothesis you're testing with the analysis. I can easily > think of a half dozen analysis schemes appropriate in various situations. > > You should start by making your hypothesis as concrete as possible. For > example, are you interested in widespread activity, or activity in > particular brain areas only? Are you interested in activity during > particular times during the clips, or some sort of temporally averaged > activity? > - I'm interested in particular brain areas or regions of interest which should be activated during the experiment. Also, a temporally averaged activity would be fine. > > There are many useful tutorials; the ones by Pereira, Mur, and (if I say > so myself) Etzel are good starting points. > - Which tutorial do you mean? Could you please write me its name or the link or it? Thank you! > > good luck, > Jo > > > > On 9/19/2012 7:19 AM, Abduljalil Sireis wrote: > >> Hi, >> >> I need help in classification project of subjects see two types of >> video clips. One kind is dangerous car accidents and the other is normal >> car advertisements. We have number of subjects perform this task with >> one session per subject. Each run consists of 6 clips from each type,the >> two successive spots are separated by black screen and a yellow cross to >> fix the subjects eyes. There was not a specific order of the spots but >> more than two successive ones of the same type were not allowed. All >> videos were accompanied with voice, so we have visual and audio >> stimulation. >> >> I think that i need to do features selection with respect to the active >> regions corresponding to the stimulations, then a cross-validation leave >> one-run-out can be applied. Could you please guide me through this >> project? Which concrete steps should i need to do? >> >> Thank you, >> Abdul >> >> >> ______________________________**_________________ >> Pkg-ExpPsy-PyMVPA mailing list >> Pkg-ExpPsy-PyMVPA@lists.**alioth.debian.org<[email protected]> >> http://lists.alioth.debian.**org/cgi-bin/mailman/listinfo/** >> pkg-exppsy-pymvpa<http://lists.alioth.debian.org/cgi-bin/mailman/listinfo/pkg-exppsy-pymvpa> >> >> > -- > Joset A. Etzel, Ph.D. > Research Analyst > Cognitive Control & Psychopathology Lab > Washington University in St. Louis > http://mvpa.blogspot.com/ > > ______________________________**_________________ > Pkg-ExpPsy-PyMVPA mailing list > Pkg-ExpPsy-PyMVPA@lists.**alioth.debian.org<[email protected]> > http://lists.alioth.debian.**org/cgi-bin/mailman/listinfo/** > pkg-exppsy-pymvpa<http://lists.alioth.debian.org/cgi-bin/mailman/listinfo/pkg-exppsy-pymvpa> >
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