FM theta-inducing audible sound, and method, device and recorded

Details FM theta-inducing audible sound, and method, device and recorded FM theta-inducing audible sound, and method, device and recorded

1994-09-14

1999-09-21

Lacyk, John P.

Surgery

Sleep or relaxation inducing therapy

Sensory

A61M 2100

Patent

active

059546301

ABSTRACT:
An audible sound of modulated wave where a very low-frequency wave of about 20 hertz or lower is superposed on an audio low-frequency wave effectively stimulates Fm theta in human brain waves to improve attention and concentration during mental tasks when auditorily administered. The audible sound is also effective in stimulation of human alpha wave when the very low-frequency wave lies within the range of about 2-10 hertz. Such audible sound is artificially obtainable by generating an electric signal which contains such a modulated wave, and transducing it into audible sound wave.

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Agu, M. et al., "1/f fluctuation with pleasant human sensation and its application to household appliances." (abstract) Journal of the Institute of Elecetrical Engineers of Japan, vol. 113, No. 1 (Jan. 1993).
Inouye, Tsuyoshi et al. "EEG Characteristics of Frontal Midline Theta Activity." The EEG of Mental Activities pp. 136-148 (1988).

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