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Psychosomatic Medicine 35:215-222 (1973)
© 1973 American Psychosomatic Society

Alpha Rhythm Percentage Maintained During 4- and 12- Hour Feedback Periods

QUENTIN R. REGESTEIN MD1, G. VERNON PEGRAM PHD2, BRIGITTE COOK 3, and DORIS BRADLEY 3

1 Peter Bent Brigham Hospital, Boston
2 Neurosciences Program, University of Alabama Medical School, Birmingham
3 6571st Aeromedical Research Laboratory Holloman Air Force Base, New Mexico

Address for reprint requests: Quentin R. Regestein, M.D., Peter Bent Brigham Hospital, 721 Huntington Avenue, Boston, Massachusetts, 02115.

This experiment used Kamiya's feedback method (1) to induce electroencephelographic (EEG) alpha rhythm in experimental subjects. We first selected naturally high alpha subjects from a five hour conditioning procedure and subsequently reinforced high and then low amounts of alpha rhythm in them during two separate 12-hour periods. We had no idea whether the production and maintenance of either alpha rhythm or nonalpha EEG activity over such a prolonged period was possible, or which of these functions might prove more difficult for high alpha subjects. Therefore, the purpose of this study was to determine, amongst selected high alpha subjects, how much alpha time they could produce during extended conditioning sessions and to observe the effects of maintaining either alpha or nonalpha EEG activity.

Submitted on April 3, 1972
Revised on August 10, 1972






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