Biofeedback can be defined as a non-medical process which involves measuring of specific subject and scientific process such as blood pressure, heart rate, skin temperature, sweat gland activity and muscle tension and convey information in real-time. Process of biofeedback raises the awareness of patient and provides him the possibility of conscious control of those functions.

What Is EEG Feedback?
EEG feedback is also known as Neurofeedback or Neurotherapy or Neurobiofeedback. EEG Feedback is a therapy that provides the user real time feedback on brainwave activity. The activity of brain can be measured by the sensors on brain in form of video display, sound or vibration. EEG feedback is used for many disorders where brain is not working well. Conditions like, Attention Deficit Hyperactivity Disorder and even more severe problems of specific learning disorders, issues like sleep problems speech disorders, teeth grinding, chronic pain, frequent headaches or stomach pain or pediatric migraines.
The training is important which helps to control mood disorders such as anxiety and depression.

Process Of EEG Biofeedback:
The process of EEG can be described in following steps:

• Initial interview is done to obtain information regarding symptoms and background history of patient and family’s health.
• Normally first training session last for about two hours where all the learning is done.
• Once learning is consolidated the benefit appears to be permanent in most cases.
• EEG Feedback is painless and non-invasive in procedure. One or more sensors are placed on the scalp and one to each ear.
• The waves of brain are monitored by means of an amplifier and a computer-based instrument that process the signal and provides for feedback.
• This is displayed by means of video game. As the activity in the desirable frequency band increases, the video game moves faster.
• As the activity in an adverse frequency band increases the activity is inhibited.
• Thus the brain responds to the cues given and learning of new band pattern is formed.
• The newly formed band pattern is studied with the pattern of the person without disability.