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https://nap.nationalacademies.org/catalog/27432/critical-issues-in-transportation-for-2024-and-beyond

FATIGUE IN SIMULATED CAR DRIVING

THE EFFECTS OF FOUR HOURS CONTINUOUS DRIVING ARE ASSESSED IN A CAR SIMULATOR ON (1) PERFORMANCE, (NUMBER OF STEERING ERRORS AND BRAKE REACTION TIME), (2) SUBJECTIVE FATIGUE, (3) PULSE RATE, RESPIRATORY RATE, SKIN RESISTANCE AND NECK MUSCLE TENSION, 4) CROSS CORRELATIONS BETWEEN THE LATTER VARIABLES AND PERFORMANCE WITHIN EACH INDIVIDUAL OVER TIME. FINALLY THE DIFFERENTIAL EFFECT ELECTRIC SHOCKS GIVEN ACCIDENTALLY IN CONNECTION WITH ERRORS IN HALF OF THE SUBJECTS WAS EVALUATED. TO CONTROL TRAINING EFFECTS, THE SUBJECTS REPEATED THE EXPERIMENT TWICE. THE RESULTS SHOW THAT ALL SUBJECTS HAD A SUCCESSIVE PERFORMANCE DECREMENT OVER TIME IN PARALLEL WITH INCREASED FEELING OF FATIGUE. PULSE RATE, REPESPIRATORY RATE AND SKIN CONDUCTANCE LEVEL ALSO SHOWED CONTINUOUS DECREMENT OVER TIME. COVARIATION OVER TIME BETWEEN PERFORMANCE VARIABLES AND PHYSIOLOGICAL VARIABLES WERE RATHER HIGH IN MOST INDIVIDUALS FOR (1) PULSE RATE (AROUND R = -.50 WITH FREQUENCY OF STEERING ERRORS), (2) EMG R = .70 WITH STEERING ERROR. EXPECTANCY OF ELECTRIC SHOCK IN CONNECTION WITH STEERING ERRORS YIELDED HIGHER SUBJECTIVE AND AUTONOMIC AROUSAL, SLOWED PERFORMANCE DECREMENT OVER TIME AND ALSO LOWERED VARIABILITY BOTH WITHIN AND BETWEEN SUBJECTS IN ALL THE VARIABLE RECORDED. /AUTHOR/

  • Supplemental Notes:
    • Report No 49, 40 PP, 20 FIG, 13 TAB, 18 REF
  • Corporate Authors:

    Uppsala Univ Psychological Lab /Sweden

    ,    
  • Authors:
    • Dureman, I
    • Boden, C
  • Publication Date: 1968-1

Subject/Index Terms

Filing Info

  • Accession Number: 00219399
  • Record Type: Publication
  • Source Agency: Nat Safety Council Safety Res Info Serv
  • Files: TRIS
  • Created Date: Apr 18 1971 12:00AM