Ultradian rhythms in walking gastric activity.
Ninety to 120 min ultradian rhythms have been described in physiologic and behavioral functions relating to biologic drives.  Gastric contractility rhythms were examined in isolated fasting volunteers to supplement behavioral observations of "oral" drives.  A clear ultradian rhythms was observed, indicating inherent physiologic oscillation in stomach contractions.
D000328:Adult; D004328:Drive; D005215:Fasting; D005260:Female; D005769:Gastrointestinal Motility; D006801:Humans; D008950:MMPI; D008297:Male; D010507:Periodicity; D012890:Sleep / Q000502:physiology; D013270:Stomach / Q000502:physiology*; D013997:Time Factors; D014851:Wakefulness / Q000502:physiology*