significance of coherence differences

[Jan Hirschmann]

Dear fieldtrip experts,

 

I am getting more and more confused about the literature of significance
tests of coherence differences. The one essential point I did not quite
understand is why conventional tests do not seem to apply. Lets say I
have two vectors of mean alpha band coherences, relating to two
experimental conditions (continuous data, no trials). The vector entries
stem from different subjects: C1=[meancoh_cond1_subj1,
meancoh_cond1_subj2,...] and C2=[meancoh_cond2_subj1,
meancoh_cond2_subj2,...]. What keeps me from comparing the two vectors,
say, with a Wilcoxon ranksum test?

 

Thanks for any comments,

 

Jan Hirschmann


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