41 The physical sleep process may be established by objective indicators; however, the subjective impression is a highly significant factor in sleep quality assessment. 42 , 43 Although several studies have confirmed that using binaural beats decreases anxiety and other negative emotions, few studies have examined the effect of this intervention on the delta frequency (3 Hz) during sleep.
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The effect of auditory stimulation using delta binaural beat for a better sleep and post-sleep mood: A pilot study.
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