Abstract
The purpose of this study was to examine the effects of workload history (specifically sudden workload shifts) on performance. A sample of 204 undergraduates was randomly assigned to either a sudden decrease or increase in workload condition. Participants simultaneously performed a memory search task (i.e., primary task) and an auditory vigilance task (i.e., distracter task), while percent correct was recorded. Separate Repeated Measures ANOVA’s revealed a significant treatment effect for the Medium to Low (F(l, 110) = 274.6, p < .01) and Low to Medium (F(l,92) = 148.3, p < .01) conditions. Results supported previous research suggesting that either a sudden decrease (Medium to Low) or increase (Low to Medium) in workload could be detrimental to performance (Cox-Fuenzalida, 2000). More importantly, this study extends the detrimental effects of workload history to a dual task environment.
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References
Ballard, J.C. (1996). Computerized assessment of sustained attention: A review of factors affecting vigilance performance. Journal of Clinical and Experimental Neuropsychology, 18(6), 843–863.
Bourke, P.A. (1997). Measuring attentional demand in continuous dual-task performance. The Quarterly Journal of Experimental Psychology, 50A(4), 821–840.
Cox-Fuenzalida, L.E. (2000). Effect of workload history on vigilance performance. Unpublished doctoral dissertation, University of Oklahoma, Norman.
Cox-Fuenzalida, L.E., Swickert, R.J., & Hittner, J.B. (2003). Effect of neuroticism and workload history on performance [Electronic version]. Personality and Individual Differences, 36, 447–456.
Cumming, R.W., & Croft, P.G. (1973). Human information processing under varying task demand. Ergonomics, 16, 581–586.
Davies, D.R., & Parasuraman, R. (1982). The psychology of vigilance. New York: Academic Press.
Goldberg, D.R., & Stewart, M.R. (1980). Memory overload or expectancy effect? “Hysteresis” revisited. Ergonomics, 23, 1173–1178.
Matthews, G., & Davies, D.R. (2001). Individual differences in energetic arousal and sustained attention: A dual-task study. Personality and Individual Differences, 31, 575–589.
Matthews, M.L. (1986). The influence of visual workload history on visual performance. Human Factors, 28 (6), 623–632.
Parasuraman, R., Warm, J.S., & Dember, W.N. (1987). Vigilance: Taxonomy and utility. In L.S. Mark, J.S. Warm, & R.L. Huston, Ergonomics and human factors: Recent research (pp. 11–32). New York: Springer-Verlag.
Riby, L.M, Perfect, T.J., & Stollery, B.T. (2004). The effect of age and task domain on dual task performance: a meta-analysis. European Journal of Cognitive Psychology, 16(6), 863–891.
Sternberg, S. (1966). High-speed scanning in human memory. Science, 153(3736), 652–654.
Warm, J.S., Dember, W.N., & Hancock, P.A. (1996). Vigilance and workload in automated systems. In R. Parasuraman & M. Mouloua (Eds.), Automation and human performance: Theory and applications (pp. 183–200). England: Lawrence Erlbaum Associates, Inc.
Wickens, C.D. (1984). Processing resources and attention. In R. Parasuraman, & D.R. Davies, Varieties of attention (pp. 63–102). Orlando, FL: Academic Press.
Wickens, C.D. (2002). Multiple resources and performance prediction. Theoretical Issues in Ergonomie Science, 3(2), 159–177.
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The authors express their gratitude to the research team from the Personality and Human Performance Lab at the University of Oklahoma for their invaluable assistance in data planning and collection.
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Cox-Fuenzalida, LE., Angie, A.D. The effects of workload history on dual task performance. Curr Psychol 24, 171–179 (2005). https://doi.org/10.1007/s12144-005-1020-y
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DOI: https://doi.org/10.1007/s12144-005-1020-y