title: Reproducibility of the spectral components of the electroencephalogram during driver fatigue.
abstract: OBJECTIVE
  To date, no study has tested the reproducibility of EEG changes that occur during driver fatigue. For the EEG changes to be useful in the development of a fatigue countermeasure device the EEG response during each onset period of fatigue in individuals needs to be reproducible. It should be noted that fatigue during driving is not a continuous process but consists of successive episodes of 'microsleeps' where the subject may go in and out of a fatigue state. The aim of the present study was to investigate the reproducibility of fatigue during driving in both professional and non-professional drivers.
  
  
  METHODS
  Thirty five non-professional drivers and twenty professional drivers were tested during two separate sessions of a driver simulator task. EEG, EOG and behavioural measurements of fatigue were obtained during the driving task.
  
  
  RESULTS
  The results showed high reproducibility for the delta and theta bands (r>0.95) in both groups of drivers.
  
  
  CONCLUSIONS
  The results are discussed in light of implications for future studies and for the development of an EEG based fatigue countermeasure device.
authors.affiliation: University of Technology, Health Science, Floor 14, Broadway, 2007, Sydney, NSW, Australia. sara.lal@uts.edu.au
authors.forename: Saroj K L
authors.initials: SK
authors.lastname: Lal
authors.forename: Ashley
authors.initials: A
authors.lastname: Craig
mesh_terms: D000328:Adult; D001334:Automobile Driving / Q000523:psychology*; D004569:Electroencephalography / Q000145:classification; D004585:Electrooculography; D005221:Fatigue / Q000503:physiopathology*; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D015203:Reproducibility of Results; D013057:Spectrum Analysis / Q000379:methods; D013997:Time Factors