We observe that if the EEG is not well-behaved under these circumstances, there may be adverse impacts on learning ability, on moods, on sleep, and on behavior. EEG training is a learning process, and therefore results are seen gradually over time. For most conditions, initial progress can be seen within about ten sessions. Initial training goals may be met by twenty sessions, at which time the initial retests are usually performed. In the case of hyperactivity and attention deficit disorder, training is expected to take about forty sessions, or even more in severe cases.
Teeth grinding usually responds in twenty sessions.
In the initial stages of learning, the sessions should be regular and frequent, at two, three, or even more sessions per week. After learning begins to consolidate, the pace can be reduced. Daily sessions can be very beneficial as well. Many medical and psychological insurance plans now cover biofeedback for various conditions. Some require co-payments.