EEG alpha-biofeedback training: an experimental technique for the management of anxiety.

This paper outlines the design of a specialized alpha-biofeedback system for use in the treatment of anxiety. The relationship of electroencephalographic (EEG) alpha activity to various anxiety states is described, and the rationale for use of alpha-biofeedback training with chronic anxiety patients is explained. Those features of the specialized system, and associated training methods, which are considered essential for this particular application are described and include the following: (1) use of visual feedback and eyes-open training; (2) use of oculomotor influences to facilitate alpha production; (3) encouragement of a passive attitude in the patient by using both verbal instructions and 'low-information' feedback with covert shaping. The training procedures used and the design and function of the instrument are described. The initial clinical results obtained with this equipment are also presented.