On the presence of a rhythmic, diurnal, oral instinctual drive cycle in man. A preliminary report.
D000328:Adult; D002940:Circadian Rhythm; D004325:Dreams; D005133:Eye Movements; D005260:Female; D006801:Humans; D006815:Hunger; D007323:Instinct; D008297:Male; D008875:Middle Aged; D009042:Motivation; D010507:Periodicity; D010947:Plants, Toxic; D011573:Psychoanalytic Interpretation; D012890:Sleep; D013894:Thirst; D014026:Nicotiana