[FieldTrip] Group level source statistics for individual condition

[Passaro, Antony D]

Hi everyone,

I tried to come up with a solution to this issue and the best I could do was to append all source analyses of pre-stim and post-stim trials for each subject to one another before performing source statistics across all trials and all subjects. However, I cant seem to find a way to normalize all subjects so they reside in the same source space prior to performing source statistics.

Any help would be much appreciated.

Thanks,
-Tony

From: fieldtrip-bounces at donders.ru.nl [mailto:fieldtrip-bounces at donders.ru.nl] On Behalf Of Passaro, Antony D
Sent: Monday, July 11, 2011 8:25 AM
To: fieldtrip at donders.ru.nl
Subject: [FieldTrip] Group level source statistics for individual condition

Hi all,

I'm trying to figure out how to compute the source statistics across a group of subjects for an individual condition (as compared to baseline). I have performed the single subject level source statistics for each condition compared to baseline (for all trials) and I have used those results to compute the group level statistics comparing both conditions directly. But I would also like to show the statistically significant sources across the group for each condition and while the average across subjects is informative, I would prefer to perform the same type of statistical analysis that was used to compare conditions directly. Is this possible with Fieldtrip and if so, would it require averaging the baseline and condition separately across all trials for each subject before comparing the condition and baseline at the group level using the sourcestatistics function?

Thank you for your help,
-Tony
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