[pymvpa] classification project

[Abduljalil Sireis]

On Wed, Sep 19, 2012 at 4:56 PM, J.A. Etzel <jetzel at artsci.wustl.edu> 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
>>
>>
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> --
> Joset A. Etzel, Ph.D.
> Research Analyst
> Cognitive Control & Psychopathology Lab
> Washington University in St. Louis
> http://mvpa.blogspot.com/
>
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