BrainTuner

BrainTuner is a computer program for neurofeedback. The BrainTuner provides monitoring of 1 or 2 channels of EEG signal, current spectrograms, a dynamics of the biofeedback signal and a learning curve. It also provides a biofeedback screen for a client with the biofeedback parameter depicted as a bar on the monitor.

The program enables the user to design an individual protocol according to QEEG, ERP, ERD assessment performed by the WinEEG program. The software is flexible enabling the user to choose standard protocols or to design a biofeedback protocol according to the client's needs. The power spectra for a chosen EEG channel are computed continuously using Fast Fourier Transformation. The biofeedback signal is then computed either as an EEG power in a chosen band (for example, Alpha) or as a ratio of powers in two bands (for example, theta/beta ratio) and can be fed back in three different modes:
1) by changing the height of a bar on the computer screen.

2) by changing the loudness of the audio signal played back from a compact disc inserted in the computer.

3) by adding noise to the video signal played back on a TV from a VCR.