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<p style="margin-top:0;margin-bottom:0"><span style="color: rgb(34, 34, 34); font-family: arial, sans-serif; font-size: small;">Dear all, </span></p>
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I am trying to use the powcorr_orth method in ft_connectivityanalysis and noticed the results always produce a random connectivity pattern. A similar issue has been raised a year ago here; </div>
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https://mailman.science.ru.nl/pipermail/fieldtrip/2017-July/011695.html<br>
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I found after editing a line from ft_connectivityanalysis the results look more reasonable, and wanted to confirm if this editing is correct with the fieldtrip developers. </div>
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In fieldtrip-20170820 ft_connectivityanalysis I noticed a line which reshapes the fourierspctrm before inputting to ft_connectivity_powcorr_orth (<span style="color: rgb(34, 34, 34); font-family: arial, sans-serif; font-size: small;">line 852 in fieldtrip-20181113</span>). </div>
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dat = reshape(data.fourierspctrm(:,:,i)', nrpttap, nchan).';<br>
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datout{i} = ft_connectivity_powcorr_ortho(dat, optarg{:});</div>
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This seems to not fit the description of ft_connectivity_powcorr_orth, which requires "dat" to have nchan rows. </div>
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I changed this to</div>
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<div> dat = data.fourierspctrm(:,:,i)';</div>
<div> datout{i} = ft_connectivity_powcorr_ortho(dat, optarg{:});</div>
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The above gave natural looking blobs of connectivity in the topology. </div>
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Thank you.</div>
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Sean</div>
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