Diurnal variations of muscle action potentials and word associations related to psychological orientation.
D000200:Action Potentials; D000328:Adult; D001244:Association; D001683:Biological Clocks; D004576:Electromyography; D006801:Humans; D008297:Male; D009132:Muscles / Q000502:physiology*; D009949:Orientation; D012890:Sleep