1. Attaching the electrodes
Neurofeedback is based on measuring the electrical activity of the brain. Therefore electrodes are placed on the patient’s head at the beginning of the session in order to be able to derive the EEG signals. The application of the electrodes, like the entire treatment, is absolutely painless when used properly by a trained doctor or therapist. Any residues of conductive pastes that are necessary to attach the electrodes can be easily removed from the hair after the treatment.
2. Derivation of EEG signals
The EEG signals measured via the electrodes are directly transmitted to a computer via a special amplifier. Using software, the EEG signals are evaluated and broken down into their individual wavebands and frequency bands. This allows the individual characteristics of brain activity to be made visible and used to improve the brain’s ability to regulate itself.
3. Visualization of brain activity
The visualization of the wavebands and the individual frequency bands is now carried out through two monitors. The therapist follows the spontaneous EEG on a screen, broken down into the individual wavebands.
At the same time, the patient sees an age-specific graphic on his own monitor – this can be an animation, a computer game or a short film – which also moves according to brain activity.
If the desired change – depending on the intensification or reduction of certain activity patterns – is achieved, the patient receives direct feedback via the monitor. Thus, the animation moves towards a target or the image becomes clearer and sharper. An acoustic signal usually supplements this feedback. Thus, a positive reinforcement of the desired behavior takes place.