Extract features from an EEG (single channel) signal

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Chiara Parrillo
Chiara Parrillo 2018-5-31
回答： Aakash Deep 2018-5-31
Hi, I'm trying to extract features from an EEG; I've not too much experience in Matlab, so I don't really know how to proceed. Could someone help?
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Chiara Parrillo
Chiara Parrillo 2018-5-31
I need to extract alfa and theta rhythm to train a classifier
Sandro Lecci
Sandro Lecci 2018-5-31
You would want to extract the frequency components of your signal using either Fourier transforms or Wavelet approaches. This is a good start.
Best, Sandro

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Aakash Deep
Aakash Deep 2018-5-31
Hello Chiara,
If you want to extract the alpha and theta rhythm of the signal, you can find the wigner-ville transform of the signal (from which you can easily see the frequency band of the signal at any time point). This can actually help. A built-in function of this is not available in MATLAB but there are toolboxes which are supported in MATLAB. Below are two toolboxes for this:
TFTB: http://tftb.nongnu.org/
HOSA: https://in.mathworks.com/matlabcentral/fileexchange/3013-hosa-higher-order-spectral-analysis-toolbox
NOTE: MathWorks does not guarantee or warrant to use the content of these submissions. Any questions, issues, or complaints should be directed to the contributing author.
Hope this helps :)

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