eeg data to move a motor

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Gabriel Enzo
Gabriel Enzo el 22 de Jun. de 2022
Comentada: Gabriel Enzo el 24 de Jun. de 2022
hello, i want to ask about how to move the motor in wheelchair with eeg data that i processed in matlab, please help because it's quite stuck, maybe i will use arduino or matlab directly
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Walter Roberson
Walter Roberson el 22 de Jun. de 2022
ANN? As in Artificial Neural Network?
So how is this going to work? You are going to record fixed length multiband segments of the user thinking some particular thought at some point during the segment, and you are going to create a list of what class (forward, back, left, right, stop, other) the recording represents, and you are going to train the neural network against that raw multiband data? With no filtering or feature extraction or pca or attempt to locate the beginning of the action in the signal?
Gabriel Enzo
Gabriel Enzo el 23 de Jun. de 2022
i'm confused in filtering that raw data in the matlab program, and for the class list just to go ahead and stop only

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Walter Roberson
Walter Roberson el 23 de Jun. de 2022
Create a numeric array in which each row is a different (fixed-length) eeg sample, and in which you have another variable which indicates which class number each row is associated with.
Then at the command line command
nprtool
and use the tool to design an ANN for classification purposes.
  7 comentarios
Walter Roberson
Walter Roberson el 24 de Jun. de 2022
Your sample code
[vec,ts] = inlet.pull_sample();
% and display it
fprintf('%.2f\t',vec);
fprintf('%.5f\n',ts);
is something that I recognize from some documentation I pointed you to the other day.
Notice that the values obtained are being returned as floating point in both cases -- vec is displayed with two decimal places and ts is displayed with 5 decimal places.
None of what is returned by pull_sample() has character strings.
Either there is a different way to read that kind of data, or else pull_sample is already parsing the character stream to extract values as numeric.
Gabriel Enzo
Gabriel Enzo el 24 de Jun. de 2022
ok, I've found a way to retrieve, thanks in advance for the help

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