Hi SPM experts,
I have 2D time-frequency images averaged across EEG channels with 2 conditions per subject over 54 subjects. I have done a repeated measures ANOVA using T-contrasts with weights [1 -1] and [-1 1] and an F-contrast with a weight matrix [eye(2) ones(2,54)/54]. I kept the threshold at 0.05. There were no significant clusters in either of the T contrasts, but several in the F-contrast. I'm having trouble understanding how this can be.
Any help would be greatly appreciated!
Thank you,
Alexandra
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