Read a .mat file in EEGLAB, you can use the "File > Import Data > Using EEGLAB functions and plugins" option from the main menu. Then select "From MATLAB workspace" and choose the .mat file you want to import.

If you encounter an error while using the pop_loadbva() function to load a .mat file, there could be several reasons for this. Here are a few troubleshooting steps to try:

If none of these steps resolve the issue, you may need to seek further assistance from the EEGLAB community or technical support team.

Thank you Joy Bakshi

Better if you use MATLAB, this will help a lot more than EEGLAB. Use the MATLAB function edfread for reading the EEGLAB data in MATLAB.

https://www.mathworks.com/help/signal/ref/edfread.html.

Write the code like this:

% Regarding the EEG signal, sig contains the signal of all channels

[info,sig] = edfread('Subject00_2.edf');

%Extract each channel's signal and store it, firstly specify which channel %you want to work with

channel = 19;

sig1 = sig(channel,:);

% Sampling frequency

fs = 500;

% Sample time

T = 1/fs;

% Length of signal

L = length(sig1);

% Time vector

t = (0:L-1)*T;

Then you can do all the analysis and operations when you got the time and signal with frequency and other information. Hope this will help.

Thank you Arindam Kumar Paul