Phase Difference of Two Time Series and Phase Lag Index
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I am trying to calculate the Phase Lag Index of two time series recorded via EEG. The equation for PLI is described in this paper: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6871367/
The critical part of the equation is the phase difference, which I am not sure how to calculate in MATLAB. Any help would be appreciated!
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Kaniska Samanta
il 3 Mar 2021
Hi,
you can simply perform hilbert transform to map those timeseries into phase signals to get instanteneous phase information by calling the function 'hilbert' in matlab. Then you can measure the phase difference by subtracting one phase signal from another.
Good luck !!!
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