| 摘要 |
PURPOSE: It is provided to improve power of concentration and to relax stress by converting sound waves into brain waves through the sense of hearing. CONSTITUTION: A sound of a flute is used to effectively stimulate brain. The improvement for power of concentration is composed of gamut "mi", respectively pulses of duty cycle 50 percent which start at 6 Hz in 3 min(minute), and 7 Hz between 3 min and 8 min, 10 Hz between 8 min and 60 min. Total of operating time has 60 min. The relaxation of stress is composed of gamut "la", respectively pulses of duty cycle 50 percent which start at 6 Hz in 15 min(minute), and 4 Hz between 15 min and 35 min, 3 Hz between 35 min and 60 min. Total of operating time has 60 min.
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