[FieldTrip] computing threshold for PLV

[Sheraz Khan]

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.



On Sat, May 18, 2013 at 12:21 PM, Subramaniam Iyer <eeguser at hotmail.com>wrote:

> Dear FT Experts,
>
> 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.
> 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.
>
> Can somebody suggest a better and robust (statistical) way of determining
> the threshold ?
>
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