Reliability of a driving simulation task for evaluation of sleepiness

Sara Contardi, Fabio Pizza, Elisa Sancisi, Susanna Mondini, Fabio Cirignotta

Research output: Contribution to journalArticlepeer-review


Driving Simulators reproduce situations that require tracking and visual searching, the main features of real driving. This study measured the reliability of a monotonous driving scenario to detect the circadian variations of alertness in healthy subjects. Five men and five women underwent a monotonous 30 min driving simulation task every 2 h. Before each driving task subjects completed the Stanford Sleepiness Scale (SSS) and the Visual Analogue Scale (VAS) to correlate the subjective measurements of sleepiness to the objective data of the simulator. Driving performances deteriorated or improved according to the circadian variation of alertness. The scenario is suitable to detect the consequences of sleepiness related to the circadian variations of alertness. The standard deviation of lane position, comparing the differences among the 10 min blocks in each task is the parameter most significant for the evaluation of sleepiness.

Original languageEnglish
Pages (from-to)427-431
Number of pages5
JournalBrain Research Bulletin
Issue number5
Publication statusPublished - Jun 30 2004


  • Circadian variation of alertness
  • Driving performance
  • Driving Simulator
  • Sleep deprivation
  • Sleepiness

ASJC Scopus subject areas

  • Neuroscience(all)


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