[pymvpa] search-light vs. ROI analysis: significance puzzle

[Malin Björnsdotter]

> In my method, the hitrate is assigned to all the
> voxels in the light and given that each voxel participates in many lights,
> the hitrates are averaged. So, using my method a voxel hitrate reflects many
> possible environments. I try to compare the results of both and so far it
> seems that with your method the results are more patchy.

That sounds pretty much exactly as what I've been doing. :-) Jo has an
excellent blog entry about this:
http://mvpa.blogspot.sg/2012/09/random-searchlight-averaging.html