How to apply Signal space projection (SSP) on EEG

Is there any matlab function for applying Signal space projection (SSP) on EEG.

Answer 1

[Shreeya]

Hi @Adnan Abid

I understand that you want to implement the Signal Space Projection on EEG signal in MATLAB. This can be achieved with the help of “icaproj” function from the EEG toolbox.

The function projects the ICA components on the observed data to reconstitute it. The input arguments required are:

• Observed data.
• Weights: The unmixing weight matrix “weights*sphere” obtained as an output from the “RUNICA” function in the toolbox.
• Compindex: A vector of the ICA component indices used for projection.

The function returns the projected data based on the ICA. For the function implementation details, refer to the below documentation link:

https://www.mathworks.com/matlabcentral/fileexchange/56415-eeglab

I hope the provided informationhelps in resolving your query.