title: The effects of body posture on resting electroencephalographic activity in sleep-deprived subjects.
abstract: OBJECTIVE
  This study examined the effects of posture on the resting electroencephalographic (EEG) activity of sleep-deprived volunteers.
  
  
  METHODS
  EEG data were collected under two conditions at 13 separate time points. Testing was performed while subjects remained in a normal seated position and then repeated while subjects stood upright.
  
  
  RESULTS
  Results indicated that delta and theta activity progressively increased as a function of sleep loss, and that standing upright attenuated this effect.
  
  
  CONCLUSIONS
  These results suggest that an upright posture increases EEG arousal and may be useful for counteracting fatigue in sleep-deprived individuals.
authors.affiliation: Aeromedical Research Laboratory, Fort Rucker, AL 36362-0577, USA. john.caldwell@se.amedd.army.mil
authors.forename: J A
authors.initials: JA
authors.lastname: Caldwell
authors.forename: B F
authors.initials: BF
authors.lastname: Prazinko
authors.forename: K K
authors.initials: KK
authors.lastname: Hall
mesh_terms: D000328:Adult; D001921:Brain / Q000503:physiopathology*; D004569:Electroencephalography; D005260:Female; D006801:Humans; D008297:Male; D011187:Posture / Q000502:physiology*; D012892:Sleep Deprivation / Q000503:physiopathology*; D013997:Time Factors