Clusterplot problem

Matteo Fraschini fraschini at UNICA.IT
Wed May 19 15:51:51 CEST 2010

Dear all,
I am currently working on a study involving Activation vs Baseline paradigm on MEG data. 
By using FT preprocessing, analysis and plotting functions I really can see what I expected 
to. But, I have a problem with statistical analysis. I tried to use cluster-based permutation 
tests on time-frequency data following the web tutorial. The analysis shows significative 
cluster but both ft_clusterplot and stat.mask seem corrupted/incorrect. What I see (with 
ft_clusterplot) is significative cluster but in region/channels with no frequency differences 
from baseline to activation. Viceversa, I can't see any cluster where the act vs bl difference 
is more evident. Looks like channels are not correctly placed in the plot.
Any suggestions?
Thank you very much,

The aim of this list is to facilitate the discussion between users of the FieldTrip  toolbox, to share experiences and to discuss new ideas for MEG and EEG analysis. See also and

More information about the fieldtrip mailing list