title: Sleep onset facilitation by tones.
abstract: In five successive sessions the effect on sleep latencies of three sound stimuli (silence, continuous sound, and an intermittent tone), as well as the combination of a tone plus counting or eye closing, were compared. Tests were conducted under a condition of "artificial insomnia": the subjects attempted sleep in the morning after a full night's sleep. No condition approached the latencies after a night of sleep deprivation. The intermittent tone and the tone plus counting were most effective and showed a differential sessions effect. The tone plus eye opening and closing was counterproductive.
mesh_terms: D000161:Acoustic Stimulation / Q000379:methods*; D000293:Adolescent; D000328:Adult; D004569:Electroencephalography; D006801:Humans; D011930:Reaction Time; D012890:Sleep; D012892:Sleep Deprivation; D007319:Sleep Initiation and Maintenance Disorders / Q000628:therapy*