<html><head><meta http-equiv="Content-Type" content="text/html charset=windows-1252"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;">Dear FieldTrip experts,<div><br></div><div>I would like to be able to compute the phase-locking value (<span style="background-color: rgb(255, 255, 255); color: rgba(0, 0, 0, 0.498039); font-family: arial, sans-serif; font-size: small; line-height: 18px;">Lachaux, 1999</span>) using source data derived from disc beamformer.</div><div><br></div><div>Right now I perform ft_sourceanalysis with </div><div>cfg.method = ‘dics’;</div><div>cfg.refdip = [x y z];</div><div>cfg.rawtrial = ‘yes’; </div><div>cfg.keepcsd = ‘yes’;</div><div>cfg.grid.filter = source.avg.filter; % precomputed common filter for two conditions</div><div><br></div><div>and then use the imaginary part of the single-trial cross-spectral densities to compute PLV “by hand”. Cross-spectra at each position have a 3x3 format, so I compute the PLV for each dipole orientation pair and then average.</div><div><br></div><div>I was wondering whether 1) the above procedure is technically correct and 2) whether there is a better, more efficient way to do it (I assume plv can be derived at the same step where source.avg.coh is computed?).</div><div><br></div><div>Many thanks in advance!</div><div><br></div><div>Best regards,</div><div>Natalia Zaretskaya</div><div><br></div><div><div style="orphans: 2; widows: 2;">---</div><div style="orphans: 2; widows: 2;">Dr. Natalia Zaretskaya</div><div style="orphans: 2; widows: 2;">Centre for Integrative Neuroscience</div><div style="orphans: 2; widows: 2;">Vision and Cognition Lab (AG Bartels) </div><div style="orphans: 2; widows: 2;">72076 Tübingen, Germany</div><div style="orphans: 2; widows: 2;"><a href="mailto:natalia.zaretskaya@cin.uni-tuebingen.de">natalia.zaretskaya@cin.uni-tuebingen.de</a></div><div style="orphans: 2; widows: 2;">phone: +49 7071 2989032</div></div><div><div style="margin: 0px; font-size: 10px; font-family: Courier; color: rgb(178, 69, 243);"><br></div><div style="margin: 0px; font-size: 10px; font-family: Courier;"><br></div></div><div><br></div></body></html>