This study examined the sensitivity of two physiological measures to the demand of structured cognitive tasks representing low, moderate and relatively high levels of secondary cognitive workload during actual highway driving. In a sample of 108 relatively healthy drivers, balanced by gender, and drawn from three age groups (20–29, 40–49, and 60–69), both heart rate and skin conductance were found to increase in a statistically significant and relatively linear fashion across 4 levels of workload. Issues associated with the study of sensitivity, task engagement and age are considered.
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References
1.
BrookhuisK. A.De WaardD. (2001). Assessment of drivers' workload: Performance and subjective and physiological indexes. In HancockP. A.DesmondP. A. (Eds.), Stress, Workload, and Fatigue (pp. 321–333). Mahwah, NJ: Lawrence Erlbaum Associates.
2.
ColletC.ClarionA.MorelM.ChaponA.PetitC. (2009). Physiological and behavioural changes associated to the management of secondary tasks while driving. Applied Ergonomics, 40(6), 1041–1046.
3.
De WaardD.BrookhuisK. A. (1997). On the measurement of driver mental workload. In RothengatterT.VayaE. C. (Eds.), Traffic & Transportation Psychology: Theory and Application (pp. 161–171). New York: Pergamon.
4.
EngströmJ.JohanssonE.ÖstlundJ. (2005). Effects of visual and cognitive load in real and simulated motorway driving. Transportation Research Part F, 8(2), 97–120.
5.
FolsteinM. F.FolsteinS. E.McHughP. R. (1975). Mini Mental State: A practical method for grading the cognitive state for the clinician. Journal of Psychiatry Research, 12(3), 189–198.
6.
KramerA. E. (1991). Physiological metrics of mental workload: A review of recent progress. In DamosD. L. (Ed.), Multiple-task performance (pp. 279–328). London: Taylor & Francis.
7.
LennemanJ. K.BacksR. W. (2009). Cardiac autonomic control during simulated driving with a concurrent verbal working memory task. Human Factors, 53(3), 404–418.
8.
LennemanJ. K.ShelleyJ. R.BacksR. W. (2005, June 27–30, 2005). Deciphering psychological-physiological mappings while driving and performing a secondary memory task. Proceedings of the Third International Driving Symposium on Human Factors in Driver Assessment, Training, and Vehicle Design, Rockport, ME, 493–498.
9.
MehlerB.ReimerB.CoughlinJ. F.DusekJ. A. (2009). The impact of incremental increases in cognitive workload on physiological arousal and performance in young adult drivers. Transportation Research Record, 2138, 6–12.
10.
MulderL. J. (1992). Measurement and analysis methods of heart rate and respiration for use in applied environments. Biological Psychology, 34(2–3), 205–236.
11.
ReimerB. (2009). Cognitive Task Complexity and the Impact on Drivers' Visual Tunneling. Transportation Research Record, 2138, 13–19.
12.
ReimerB.MehlerB.CoughlinJ. F.GodfreyK. M.TanC. (2009). An On-Road Assessment of the Impact of Cognitive Workload on Physiological Arousal in Young Adult Drivers. Proceedings of the AutomotiveUI, Essen, Germany.
13.
ReimerB.MehlerB. L.PohlmeyerA. E.CoughlinJ. F.DusekJ. A. (2006). The use of heart rate in a driving simulator as an indicator of age-related differences in driver workload. Advances in Transportation Studies an International Journal, Special Issue, 9–20.
14.
RoscoeA. H. (1992). Assessing pilot workload. Why measure heart rate, HRV and respiration. Biological Psychology, 34(2–3), 259–287.
15.
SazaboA.PeronnetF.GauvinL.FuredyJ. J. (1994). Mental challenge elicits “additional” increases in heart rate during low and moderate intensity cycling. International Journal of Psychophysiology, 17(3), 197–204.
16.
VeltmanJ. A.GaillardA. W. K. (1998). Physiological workload reactions to increasing levels of task difficulty. Ergonomics, 41(5), 656–669.
17.
VictorT. W.HarblukJ. L.EngströmJ. A. (2005). Sensitivity of eye-movement measures to in-task difficulty. Transportation Research Part F, 8, 167–190.
18.
WickensC. D.HollandsJ. G. (2000). Engineering Psychology and Human Performance (3 ed.). Upper Saddle River, NJ: Prentice Hall.
19.
WilsonG. F. (2002). Psychophysiological test methods and procedures. In CharltonS. G.O'BrienT. G. (Eds.), Handbook of Human Factors Testing and Evaluation (pp. 127–156). Mahwah, NJ: Lawrence Erlbaum.
20.
WilsonG. F.EnggemierF. T. (1991). Physiological assessment of workload in multi-task environments. In DamosD. L. (Ed.), Multiple-task performance (pp. 329–360). Washington, DC: Taylor & Francis.
21.
ZeitlinL. R. (1993). Subsidiary task measures of driver mental workload: A long-term field study. Transportation Research Record, 1403, 23–27.
