Electroencephalographic biofeedback methodology and the management of epilepsy

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Abstract
Currently considerable research is being directed toward developing methodologies for controlling internal processes. An applied branch of the basic field of psychophysiology, known as biofeedback, has developed to fulfill clinical needs related to such control. Current scientific and popular literature abounds with numerous examples of how biofeedback is being used. For example, germinal studies by Kamiya (1962), and later work by Lynch and Paskewitz (1971), Beatty (1973), as well as many others have shown that the EEG alpha rhythm (8 to 13 Hz) recorded from occipital regions of the human brain can be behaviorally manipulated when feedback or reward is provided for changing the density of this activity. Other researchers have provided evidence that theta activity (4 to 7 Hz) and the beta activity (greater than 14 Hz) can also be controlled by humans and analogs of this activity have been conditioned in animals as well (Green, Green and Walters, 1971). In addition to the work that has been carried out with the EEG, researchers such as Engle and Bleecker (1973) have indicated that it might be possible to control cardiac arrhythmias through biofeedback. Studies by Elder et al. (1973) have provided some hope that blood pressure in humans might also be conditioned. Also, considerable effort has been directed to the control of responses from single muscles with particular applied emphasis in neuromuscular rehabilitation, control of muscle tension for tension headaches and the management of migraine headaches through vasomotor conditioning (Brudny et al., 1974; Basmajian, 1963, 1971; Sargent et al., 1973).

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