<html><head><meta http-equiv="Content-Type" content="text/html charset=us-ascii"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;"><div>Dear Marta,</div><div>the applicability of connectivity metrics in FieldTrip (including wPLI) is independent of the inverse operator. So the answer is yes and no. It is appropriate if you have the single observations (i.e. epochs that you cut the data into) kept in the output of your source reconstruction analysis. I guess you have 88 source waveforms and not 88 x Ntrials time series. If this is correct wPLI or any phase metric is rather inappropriate. </div><div><br></div><div>Good luck,</div><div>tzvetan</div><div><br><br class="Apple-interchange-newline"><blockquote type="cite"><div><div style="background-color: rgb(255, 255, 255); font-family: HelveticaNeue-Light, 'Helvetica Neue Light', 'Helvetica Neue', Helvetica, Arial, 'Lucida Grande', sans-serif; font-size: 16px; position: static; z-index: auto;"><!--[if gte mso 9]><xml>
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<div id="yui_3_16_0_1_1451895034254_49204" class="">Dear Community,</div>
<div id="yui_3_16_0_1_1451895034254_49206" class="">I have resting-state data obtained by 70-channel EEG
recording. I have calculated EEG sources and obtained estimated signal in 88 Brodmann
areas (BAs) by means of sLORETA. Now I would like to measure connectivity
between these BAs. I have seen that many connectivity measures have been
developed in fieldtrip, including the weighted Phase Lag Index (wPLI). Given
that wPLI estimates time-lagged interdependences, is it appropriate to apply wPLI
to sLORETA estimated sources?</div>
<div id="yui_3_16_0_1_1451895034254_49208" class=""> </div>
<div id="yui_3_16_0_1_1451895034254_49210" class="">Thank you for your help!</div>
<div id="yui_3_16_0_1_1451895034254_49212" class=""> </div>
<div id="yui_3_16_0_1_1451895034254_49214" class="">Marta</div><div dir="ltr">
</div><div id="yui_3_16_0_1_1451895034254_30679"> </div><div id="yui_3_16_0_1_1451895034254_30751" class="signature">Marta Bortoletto, PhD
<br>Cognitive Neuroscience Section,
<br> IRCCS Centro San Giovanni di Dio Fatebenefratelli
<br>Via Pilastroni 4, 25125 Brescia, Italy
<br>Phone number: (+39) 0303501594
<br>E-mail: <a href="mailto:marta.bortoletto@cognitiveneuroscience.it">marta.bortoletto@cognitiveneuroscience.it</a>
<br> web: <a href="http://www.cognitiveneuroscience.it/">http://www.cognitiveneuroscience.it/</a></div></div></div>_______________________________________________<br>fieldtrip mailing list<br><a href="mailto:fieldtrip@donders.ru.nl">fieldtrip@donders.ru.nl</a><br>http://mailman.science.ru.nl/mailman/listinfo/fieldtrip</blockquote></div><br></body></html>