Psychophysiological Changes Associated With Self-Regulation of Sleepiness and Cessation From a Hazard Perception Task

Watling, Christopher N. ORCID: and Smith, Simon S. and Horswill, Mark S. (2016) Psychophysiological Changes Associated With Self-Regulation of Sleepiness and Cessation From a Hazard Perception Task. Journal of Psychophysiology, 30 (2). pp. 66-75.

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The relationship between a driver’s ability to identify increasing sleepiness and ceasing driving when sleepy is relatively unexamined. Several studies suggest that drivers have some ability to identify increasing levels of sleepiness. However, whether that identification of sleepiness leads to drivers being able to self-regulate and cease driving has not been examined. This study assessed the capacity of drivers to identify sleepiness and to self-regulate their own simulated driving cessation. Twenty-six young adults completed a validated hazard perception simulated task when moderately sleep deprived after a 05:00 wake up. Participants were instructed to stop driving if they thought they were too sleepy to drive safely on the road. Physiological (EEG, EOG, and ECG) and subjective (Karolinska Sleepiness Scale) measures were used to examine self-regulation of simulated driving cessation. The behavioural validity of the participants’ subjective sleepiness was then examined with a 30 minute nap opportunity. All participants ceased the task on average after approximately 40 minutes (range = 12.5-73 mins). No participant was judged to have experienced any microsleeps or fallen asleep. Subjective sleepiness and EOG-based blink duration measures increased significantly from the beginning of the drive to the end of the simulated driving episodes. During the nap opportunity 23 of the 26 participants were able to achieve sleep onset. The results suggest that moderately sleep deprived individuals can identify increasing sleepiness and then take action to cease a hazard perception task. Potentially, on-road drivers could benefit from better elicitation of subjective sleepiness and their self-regulation of driving cessation.

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Item Type: Article (Commonwealth Reporting Category C)
Refereed: Yes
Item Status: Live Archive
Faculty/School / Institute/Centre: No Faculty
Faculty/School / Institute/Centre: No Faculty
Date Deposited: 03 Mar 2022 00:53
Last Modified: 13 Apr 2022 02:03
Uncontrolled Keywords: Awareness; Driver sleepiness; Nap break; Physiological sleepiness; Subjective sleepiness
Fields of Research (2008): 17 Psychology and Cognitive Sciences > 1702 Cognitive Sciences > 170201 Computer Perception, Memory and Attention
11 Medical and Health Sciences > 1117 Public Health and Health Services > 111799 Public Health and Health Services not elsewhere classified
17 Psychology and Cognitive Sciences > 1701 Psychology > 170101 Biological Psychology (Neuropsychology, Psychopharmacology, Physiological Psychology)
Fields of Research (2020): 52 PSYCHOLOGY > 5204 Cognitive and computational psychology > 520402 Decision making
42 HEALTH SCIENCES > 4206 Public health > 420604 Injury prevention
52 PSYCHOLOGY > 5202 Biological psychology > 520206 Psychophysiology
Socio-Economic Objectives (2008): B Economic Development > 88 Transport > 8801 Ground Transport > 880109 Road Safety
C Society > 92 Health > 9204 Public Health (excl. Specific Population Health) > 920409 Injury Control
E Expanding Knowledge > 97 Expanding Knowledge > 970117 Expanding Knowledge in Psychology and Cognitive Sciences
Socio-Economic Objectives (2020): 20 HEALTH > 2004 Public health (excl. specific population health) > 200408 Injury prevention and control
28 EXPANDING KNOWLEDGE > 2801 Expanding knowledge > 280121 Expanding knowledge in psychology
27 TRANSPORT > 2703 Ground transport > 270311 Road safety
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