title: [A conditioned reflex to time at different stages of natural nocturnal sleep in man].
mesh_terms: D000161:Acoustic Stimulation; D000293:Adolescent; D000328:Adult; D001307:Auditory Perception / Q000502:physiology*; D001921:Brain / Q000502:physiology*; D003214:Conditioning, Classical / Q000502:physiology*; D004562:Electrocardiography; D004569:Electroencephalography; D005712:Galvanic Skin Response; D006321:Heart / Q000502:physiology*; D006339:Heart Rate; D006801:Humans; D012894:Sleep Stages; D012895:Sleep, REM; D013995:Time; D013998:Time Perception / Q000502:physiology*
vernacular_title: Uslovnyĭ refleks na vremia v razlichnye stadii estestvennogo nochnogo sna u cheloveka