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Phase Locking Value

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29 May 2011 (Updated )

Computes the Phase Locking Value (PLV) for neuroelectric signals.

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Description

Phase Locking Value (PLV) is a statistic that can be used to investigate task-induced changes in long range synchronization of neural activity. This method is introduced in Lachaux et al., (1999) Human Brain Mapping.

A visual summary of the method is shown in the 'Screenshot' file. Note that the baseline normalization procedure shown in the figure is not yet implemented in the script.

This particular implementation of estimating the PLV uses the Hilbert transform instead of wavelets.

To learn more, please read my blog entry - http://praneethnamburi.wordpress.com/2011/08/10/plv/

Kindly let me know if you have any comments/suggestions!

Required Products Signal Processing Toolbox
MATLAB release MATLAB 7.9 (R2009b)
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Comments and Ratings (2)
10 Dec 2012 ahmed albakri

Hi friend , thank you very much
How can use this code if my eegData is 2D matrix not 3D matrix .
and thanks

20 Jul 2011 Agatha lenartowicz

Clear usage examples and demo. Straightforward script that's intuitive with eeg data structure. Thanks for the implementation!

Updates
16 Aug 2011

Added a link for further reading in the 'description' section.

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