[pymvpa] A couple of questions from a new MVPA user

J.A. Etzel jetzel at wustl.edu
Wed Apr 8 22:13:37 UTC 2015

On 4/8/2015 1:37 PM, Raúl Hernández wrote:
> My questions are,
> Am I following a correct logic in the analysis?
 From what you wrote, this sounds like a reasonable anatomical ROI-based
analysis. You'll need to do some sort of multiple-comparisons correction
for the number of ROIs, of course.

> Is it correct for me to conclude that those areas are involved in
> processing the categories?
Well, the regions probably have information related to something having
to do with the stimulus categories. You always need to be cautious
interpreting *what* a classifier is actually using for its decision - it
could be something trivial, like a region that picks up on the
brightness of the images, rather than the part of the images you were
interested in.

good luck,

Joset A. Etzel, Ph.D.
Research Analyst
Cognitive Control & Psychopathology Lab
Washington University in St. Louis

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