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<div>Hi Jose,</div>
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<div>1.<br>
<div>I want to perform this analysis intra-subject.</div>
<div>I have a plv value for the elctrode combination 1&2 at 30Hz for condition 1, and another value for condition 2 (they both have 80 trials)</div>
<div>Not sure I understand what you mean by permuting the trial labels and what I would do with the obtained values. </div>
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<div>See:</div>
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<div><span style="font-family: Calibri, Geneva, Arial, Verdana, sans-serif; line-height: 22px; text-align: justify; background-color: rgb(255, 255, 255);">Maris E., Schoffelen J.M., Fries P.</span><em style="padding: 0px; margin: 0px; font-family: Calibri, Geneva, Arial, Verdana, sans-serif; line-height: 22px; text-align: justify; background-color: rgb(255, 255, 255);"><a href="http://www.ncbi.nlm.nih.gov/sites/entrez?Db=pubmed&Cmd=ShowDetailView&TermToSearch=17395267" class="urlextern" title="" rel="nofollow" style="padding: 1px 0px 1px 16px; margin: 0px; color: purple; text-decoration: none; background-image: url(http://www.fieldtriptoolbox.org/lib/tpl/FieldTripV2/images/link_icon.gif); background-color: transparent; background-position: 0px 1px; background-repeat: no-repeat no-repeat;">Nonparametric
statistical testing of coherence differences.</a></em><span style="font-family: Calibri, Geneva, Arial, Verdana, sans-serif; line-height: 22px; text-align: justify; background-color: rgb(255, 255, 255);"> J Neurosci Methods. 2007 Jun 15;163(1):161-75.</span></div>
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<div>2.</div>
<div>Also, is it not possible to do this along time?</div>
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Yes, in principle one could compute a time-resolved PLV. This should be done with cfg.method = ‘mtmconvol’, in ft_freqanalysis.</div>
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<div>Jan-Mathijs</div>
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<div class="gmail_quote">On Thu, Jul 9, 2015 at 10:33 AM, Schoffelen, J.M. (Jan Mathijs)
<span dir="ltr"><<a href="mailto:jan.schoffelen@donders.ru.nl" target="_blank">jan.schoffelen@donders.ru.nl</a>></span> wrote:<br>
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<div style="word-wrap:break-word">Hi Jose,
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<div>I can think of one out of 2 things:</div>
<div>-you formulate a null hypothesis pertaining to a group of subjects, and do statistical inference across subjects (e.g. by permuting the condition labels), or</div>
<div>-you formulate a null hypothesis pertaining to the observations belonging to the individual conditions, and do statistical inference across observations, e.g. by permuting the trial labels.</div>
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<div>Best wishes,</div>
<div>Jan-Mathijs</div>
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<div style="letter-spacing: normal; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px; word-wrap: break-word;">
Jan-Mathijs Schoffelen, MD PhD, Senior researcher
<div><br>
Max Planck Institute for Psycholinguistics<br>
Donders Centre for Cognitive Neuroimaging</div>
<div><br>
E-mail: <a href="mailto:j.schoffelen@donders.ru.nl" target="_blank">j.schoffelen@donders.ru.nl</a><br>
Telephone: <a href="tel:%2B31-24-3614793" value="+31243614793" target="_blank">+31-24-3614793</a><br>
<br>
<a href="http://www.hettaligebrein.nl/" target="_blank">http://www.hettaligebrein.nl</a></div>
<div><a href="http://www.fieldtriptoolbox.org/" target="_blank">http://www.fieldtriptoolbox.org</a></div>
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<div>On Jul 9, 2015, at 11:24 AM, Jose Rebola <<a href="mailto:jrebola@gmail.com" target="_blank">jrebola@gmail.com</a>> wrote:</div>
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<div dir="ltr">Hi,
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<div>Is there a straightforward way to compare any connectivity measure at a given frequency (say, plv at 30Hz between electrodes 1 and 2) across conditions? I end up with one value per channel combination per frequency per condition, so what is the right way
to compare?</div>
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<div>Thanks in advance,</div>
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<div>Jose Rebola</div>
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