Impact of Cognitive Workload on Physiological Arousal and Performance in Younger and Older Drivers

Two groups, aged 25-35 and 60-69, engaged in 3 levels of a delayed auditory recall task while driving a simulated highway. Heart rate and skin conductance increased with each level of demand, demonstrating that these indices can correctly rank order cognitive workload. Effects were also observed on speed and SD of lane position, but they were subtle, nonlinear, and did not effectively differentiate. Patterns were quite consistent across age groups. These findings on the sensitivity of physiological measures replicate those from an on-road study using a similar protocol. Together, the results support the validity of using these physiological measures of workload in a simulated environment to model differences likely to be present under actual driving conditions.

[1]  J. Dusek,et al.  Impact of Incremental Increases in Cognitive Workload on Physiological Arousal and Performance in Young Adult Drivers , 2009 .

[2]  Glenn F. Wilson,et al.  Psychophysiological Test Methods and Procedures , 2019, Handbook of Human Factors Testing and Evaluation.

[3]  K A Brookhuis,et al.  The effects of mobile telephoning on driving performance. , 1991, Accident; analysis and prevention.

[4]  James R. Sayer,et al.  Naturalistic Driving Performance During Secondary Tasks , 2017 .

[5]  Bryan Reimer,et al.  An on-road assessment of the impact of cognitive workload on physiological arousal in young adult drivers , 2009, AutomotiveUI.

[6]  Richard W. Backs,et al.  Enhancing assessment of in-vehicle technology attention demands with cardiac measures , 2010, AutomotiveUI.

[7]  Kathryn M. Godfrey,et al.  Age and cross-cultural comparison of drivers’ cognitive workload and performance in simulated urban driving , 2010 .

[8]  Lisbeth Harms,et al.  Variation in drivers' cognitive load. Effects of driving through village areas and rural junctions , 1991 .

[9]  Thomas J Triggs,et al.  Driver distraction: the effects of concurrent in-vehicle tasks, road environment complexity and age on driving performance. , 2006, Accident; analysis and prevention.

[10]  Richard W. Backs,et al.  Cardiac Autonomic Control During Simulated Driving With a Concurrent Verbal Working Memory Task , 2009, Hum. Factors.

[11]  B. Reimer,et al.  Physiological Reactivity to Graded Levels of Cognitive Workload across Three Age Groups: An On-Road Evaluation , 2010 .

[12]  D. de Waard,et al.  Assessment of drivers' workload: performance, subjective and physiological indices , 2001 .

[13]  Johan Engström,et al.  Effects of visual and cognitive load in real and simulated motorway driving , 2005 .

[14]  Ying Wang,et al.  The Impact of Systematic Variation of Cognitive Demand on Drivers' Visual Attention across Multiple Age Groups , 2010 .

[15]  Bryan Reimer,et al.  The impact of cognitive workload on physiological arousal in young adult drivers: a field study and simulation validation , 2011, Ergonomics.