The current study investigated the effects of aging on working memory and mental workload. Subjects performed a Brown-Peterson memory task using simulated air traffic controller/pilot communications. Perceived mental workload was measured using the NASA-TLX rating scale. Results revealed no significant recall performance differences between younger and older individuals. However, workload ratings indicated that older individuals experienced higher perceived workload than younger individuals. These findings suggest subjective workload ratings may be sensitive to age-related differences not demonstrated by performance measures.
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References
1.
BaddeleyA. D.HitchG. J. (1974). Working Memory. In BowerG. A. (Ed.), The psychology of learning and motivation (Vol. 8, pp. 47–90). New York: Academic Press
2.
BoyerD. L.PollackJ. G.EggemeierF. T. (1992). Effects of aging on subjective workload and performance. In Proceedings of the Human Factors Society 36th Annual Meeting (pp. 156–160). Santa Monica, CA: Human Factors Society
3.
BrownJ. A. (1958). Some tests of the decay hypothesis of immediate memory. Quarterly Journal of Experimental Psychology, 10, 12–21
4.
CohenG. (1979). Language comprehension in old age. Cognitive Psychology, 11, 412–429
5.
DobbsA. R.RuleB. G. (1989). Adult age differences in working memory. Psychology and Aging, 4, 500–503
6.
HartS. G.StavelandL. E. (1988). Development of NASA-TLX (Task Load Index): Results of empirical and theoretical research. In HancockP. A.MeshkatiN. (Eds.), Human Mental Workload, pp. 139–183, Amsterdam: Elsevier Science
7.
LightL. L. (1988). Language and aging: Competence versus performance. In BirrenJ. E.BengstonV. L. (Eds.), Emergent theories of aging (pp. 177–213). New York: Springer
8.
LoftusG. R.DarkV. J.WilliamsD. (1979). Short term memory factors in ground controller/pilot communication. Human Factors, 21, 169–181
9.
LorsbachT. C. (1990). Buildup of proactive inhibition as a function of temporal spacing and adult age. American Journal of Psychology, 105, 21–36
10.
Mistler-LachmanJ. L. (1977). Spontaneous shift in encoding dimensions among elderly subjects. Journal of Gerontology, 32, 68–72
11.
PetersonL. R.PetersonM. J. (1959). Short-term retention of individual verbal items. Journal of Experimental Psychology, 58, 195–198
12.
SchonfieldA. E.DavidsonH.JonesH. (1983). An example of age-associated interference in memorizing. Journal of Gerontology, 18, 204–210
13.
TallandG. A. (1967). Age and the immediate memory span. Gerontologist, 7, 4–9
14.
WelfordA. T. (1958). Aging and human skill.London: Oxford University Press
