<div dir="ltr">You can randomly shift in time the epochs, to compute null-distribution, and then threshold at some p-value say p < 0.01, you can even correct for multiple comparison in space and time using this principle.<div>
<br></div></div><div class="gmail_extra"><br><br><div class="gmail_quote">On Sat, May 18, 2013 at 12:21 PM, Subramaniam Iyer <span dir="ltr"><<a href="mailto:eeguser@hotmail.com" target="_blank">eeguser@hotmail.com</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<div><div dir="ltr">Dear FT Experts,<br>
<br>
I have calculated PLV for a set of EEG data from 5 different patients.
Now I want to convert the PLV matrix of each patient into a binary
matrix. For this I need a threshold PLV value below which I can assume
the phase locking is zero.<br>
My question is, how do I compute this threshold. I know hard
thresholding is one option ( for ex setting 0.1 or 0.2 as threshold),
but I guess it is not a very good option.<br>
<br>
Can somebody suggest a better and robust (statistical) way of determining the threshold ? </div></div>
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