Conference paper
A model to predict hypovigilance during a monotonous task
Proceedings of the 2009 Australasian Road Safety Research, Policing and Education Conference
Australasian Road Safety Research, Policing and Education Conference, 2009 (Sydney, Australia, 10-Nov-2009–13-Nov-2009)
NSW Centre for Road Safety
2009
Abstract
The driving task requires sustained attention during prolonged periods, and can be performed in highly predictable or repetitive environments. Such conditions could create drowsiness or hypovigilance and impair the ability to react to critical events. Identifying vigilance decrement in monotonous conditions has been a major subject of research, but no research to date has attempted to predict this vigilance decrement. This pilot study aims to show that vigilance decrements due to monotonous tasks can be predicted through mathematical modelling. A short vigilance task sensitive to short periods of lapses of vigilance called Sustained Attention to Response Task is used to assess participants' performance. This task models the driver's ability to cope with unpredicted events by performing the expected action. A Hidden Markov Model (HMM) is proposed to predict participants' hypovigilance. Driver's vigilance evolution is modelled as a hidden state and is correlated to an observable variable: the participant's reactions time. This experiment shows that the monotony of the task can lead to an important vigilance decline in less than five minutes. This impairment can be predicted four minutes in advance with an 86% accuracy using HMMs. This experiment showed that mathematical models such as HMM can efficiently predict hypovigilance through surrogate measures. The presented model could result in the development of an in-vehicle device that detects driver hypovigilance in advance and warn the driver accordingly, thus offering the potential to enhance road safety and prevent road crashes.
Details
- Title
- A model to predict hypovigilance during a monotonous task
- Authors
- Gregoire Larue (Author) - Queensland University of TechnologyAndry Rakotonirainy (Author) - Queensland University of TechnologyTony Pettitt (Author) - Queensland University of Technology
- Publication details
- Proceedings of the 2009 Australasian Road Safety Research, Policing and Education Conference
- Conference details
- Australasian Road Safety Research, Policing and Education Conference, 2009 (Sydney, Australia, 10-Nov-2009–13-Nov-2009)
- Publisher
- NSW Centre for Road Safety
- Date published
- 2009
- Copyright note
- Copyright © 2009 The Author. Reproduced with permission of the author.
- Organisation Unit
- Road Safety Research Collaboration; University of the Sunshine Coast, Queensland; School of Law and Society
- Language
- English
- Record Identifier
- 99648950702621
- Output Type
- Conference paper
Metrics
2 File views/ downloads
79 Record Views