INFLUENCE OF SOUND AND LIGHT ON HEART RATE VARIABILITY

摘要: The effects of acoustic and visual stimuli their synergistic on heart rate variability including gender differences were investigated. Of particular interest was the influence stimulus during listening to simple sounds different characters. Twelve male 12 female university students selected as subjects. subjects listened at rest 7 figures sound loudness levels averaging 60 dB. Beat-to-beat R-R intervals continuously recorded under closed-eye condition (CEC) open-eye (OEC) prior to, during, immediately after exposure stimuli. Low frequency (LF) power defined over 0.04-0.15 Hz high (HF) 0.15-0.40 Hz. Cardiac autonomic function estimated by plotting LF/HF in standard measure against HF (%) (%), accompanied a demarcated central area. Values tended be smaller CEC than OEC. while 110 sine wave significantly greater values for 880 3520 waves, or sawtooth Under CEC, females males. value OEC that white noise results suggest cardiac parasympathetic nervous activity auditory excitation increases with elimination tends