<html><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; ">Dear Jan-Mathijs,<div><br></div><div>Yes indeed, it is freq-data (preprocessed by ft_freqanalysis). Apologies for the confusion.</div><div>Subsequently, we localized the effects using ft_sourceanalysis (cfg.method = 'dics') and identified regions of interest<font class="Apple-style-span" face="Dialog"><span class="Apple-style-span" style="font-size: small;">, which I'd like to use now for the connectivityanalysis</span></font></div><div>I assume in order to use plv I would need to run ft_connectivityanalysis at the freq-level.</div><div>Anyway, thanks a lot for your help!</div><div>I will have a look at the ft_connectivityanalysis options.</div><div><br></div><div>Thanks again & best wishes,</div><div><br></div><div>Sibylle</div><div><br></div><div><br></div><div><br></div><div><br></div><div><div><div>On 7 Apr 2011, at 13:28, jan-mathijs schoffelen wrote:</div><br class="Apple-interchange-newline"><blockquote type="cite"><div>Dear Sibylle,<br><br>You confuse me a bit. You mention ft_sourcedescriptives in combination with freq data. Do you mean that you have source-level data in the frequency domain, or do you have freq-data, as in sensor level data having been processed by ft_freqanalysis? In the former case, I do not recall that ft_sourcedescriptives could compute a plv. In the latter case: it was indeed supported by ft_freqdescriptives.<br>A while ago we moved the functionality of ft_freqdescriptives dealing with coherence/plv etc to ft_connectivityanalysis. So I'd suggest to have a look there. Also, I think it should be possible to use ft_connectivityanalysis to compute source level plv, but this may still need some tweaking.<br><br>Best wishes,<br><br>Jan-Mathijs<br><br><br>On Apr 7, 2011, at 12:55 PM, sibylle wrote:<br><br><blockquote type="cite">Dear Fieldtrippers,<br></blockquote><blockquote type="cite"><br></blockquote><blockquote type="cite">I have a couple of question and I hope someone can help me:<br></blockquote><blockquote type="cite">How is it possible to compute plv (for freq data)?<br></blockquote><blockquote type="cite">As far as I can remember there used to be an option within ft_sourcedescriptives, which seems to have disappeared.<br></blockquote><blockquote type="cite">How can one use plv to determine connectivity in source space?<br></blockquote><blockquote type="cite"><br></blockquote><blockquote type="cite">Thanks a lot & best wishes,<br></blockquote><blockquote type="cite"><br></blockquote><blockquote type="cite">Sibylle<br></blockquote><blockquote type="cite"><br></blockquote><blockquote type="cite"><br></blockquote><blockquote type="cite">_______________________________________________<br></blockquote><blockquote type="cite">fieldtrip mailing list<br></blockquote><blockquote type="cite"><a href="mailto:fieldtrip@donders.ru.nl">fieldtrip@donders.ru.nl</a><br></blockquote><blockquote type="cite"><a href="http://mailman.science.ru.nl/mailman/listinfo/fieldtrip">http://mailman.science.ru.nl/mailman/listinfo/fieldtrip</a><br></blockquote><br>Dr. J.M. (Jan-Mathijs) Schoffelen<br>Donders Institute for Brain, Cognition and Behaviour,<br>Centre for Cognitive Neuroimaging,<br>Radboud University Nijmegen, The Netherlands<br><a href="mailto:J.Schoffelen@donders.ru.nl">J.Schoffelen@donders.ru.nl</a><br>Telephone: 0031-24-3614793<br><br>_______________________________________________<br>fieldtrip mailing list<br>fieldtrip@donders.ru.nl<br>http://mailman.science.ru.nl/mailman/listinfo/fieldtrip<br></div></blockquote></div><br></div></body></html>