Indicators and Predictors of Sleepiness
نویسندگان
چکیده
6 LIST OF ORIGINAL PAPERS 7 LIST OF ABBREVIATIONS 8 INTRODUCTION 9 AIMS 12 BACKGROUND 13 Sleep 13 A model of sleep regulation 13 Sleep EEG and sleep stages 14 Sleep cycles 15 Sleepiness 16 Definitions 16 Prevalence of sleepiness 17 Sleep deprivation 18 The Circadian rhythm 19 The Sleep debt 20 Shift work and sleepiness 22 The Countermeasures 23 Sleep, naps or breaks as countermeasure 23 Drugs and food as countermeasure 23 Environmental stimulation as countermeasure 24 Behavioural countermeasure 25 Indicators of Sleepiness 25 Objective measures 25 Subjective measures 28 Risk of an Accident 30 Sleepiness related accidents in general 30 Sleepiness related traffic accidents 31 Predictors of sleepiness traffic accidents 32 METHODS 34 Study I-IV 34 Subjects 34 Preparation and procedure 35 Objective measures to measure sleepiness 36 Electroencephalographic, EEG 36 Heart rate and heart rate variability, HR HRV 37 Performance test 37 Head movement 38 Electrooculography, EOG 38 Subjective measures to measure sleepiness 38 Karolinska Sleepiness Scale,Category-Ratio Scale 38 Questionnaire 39
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