Neurofeedback works by re-training the brain's electrical activity (EEG)
1. A sensor is gently attached to your scalp with a little conductive paste (which feels a bit like hair gel) and a further sensor is clipped onto each ear.  It is not painful.
2. The sensor detects the electrical activity (EEG) from the brain, this is then amplified and converted into an image of brain waves on the therapist's computer screen.
3. The therapist sets the targets - ie the specific brainwaves that you need to enhance or reduce.
4. You then play a computer game, using your brainwaves - no hands. When you produce healthy brainwaves, you have success with the game; seeing points accumulate and hearing audible beeps. In this way, you are able to see and hear when your brain is doing 'the right thing' and you will learn to do it more & more often... until it becomes normal for you.

Each training session using this specialised equipment last 30 minutes (with the whole appointment lasting 45-60 minutes). It usually necessary to train for 20-40 sessions to achieve the desired results. With deep states training (alpha/theta) around 10-20 sessions is the average.