<div dir="ltr">Thank you Jan, but I don't quite follow.<div><br></div><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><div><br></div><div>2.</div><div>Also, is it not possible to do this along time?</div><div>I mean, the paper of Lachaux in 99 establishes plv in such a way that you get a plv value for each time point.</div><div>In this case, I could compare the timeseries for the two conditions, right?</div><div>Is there any way to do this in fieldtrip? Does it compute any connectivity measure along time?</div><div><br></div><div><br></div><div>Thanks once again! </div></div></div><div class="gmail_extra"><br><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><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
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Hi Jose,
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</div>
<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>
<div><br>
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<div>Best wishes,</div>
<div>Jan-Mathijs</div>
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<div style="color:rgb(0,0,0);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><div><div class="h5">
<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,
<div><br>
</div>
<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>
<div><br>
</div>
<div>Jose Rebola</div>
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