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- catalog contributor b11126785.
- catalog created "[1998]".
- catalog date "1998".
- catalog date "[1998]".
- catalog dateCopyrighted "[1998]".
- catalog extent "[4] p. :".
- catalog isPartOf "Techbrief".
- catalog issued "1998".
- catalog issued "[1998]".
- catalog language "eng".
- catalog publisher "Washington, DC (400 Seventh St., SW, Room 3107, Washington 20590) : Federal Highway Administration, Office of Motor Carriers, Office of Motor Carrier Research and Standards,".
- catalog spatial "United States.".
- catalog subject "Drowsiness Measurement.".
- catalog subject "Fatigue Measurement.".
- catalog subject "Motor vehicle drivers Psychological testing United States.".
- catalog title "PERCLOS, a valid psychophysiological measure of alertness as assessed by psychomotor vigilance.".
- catalog type "text".