Abstract
This paper aims to present an analysis of the concept of mental load from the point of view of human performance theory. In the first section the theoretical status of the concept of mental load is considered. It is concluded that it is based upon common sense, which cannot be supposed to be empirically founded in a simple way. Then an outline is given of the main procedures of measurement. The next section describes a number of theoretical bases which are all related to some kind of limited capacity notion. It is concluded that the original idea of channel capacity in terms of information theory fails to provide a sound theoretical framework. Other capacity concepts in terms of limited capacity processors and in terms of effort are described. Three types of processors are distinguished, which have different consequences for the measurement of mental load.
The fourth section describes some experimental trends. It is concluded that a multichannel type of processor, composed of a network of internal mechanisms is most favoured by the data. This has the consequence that mental load cannot be conceived of as a single dimension. The question is which mechanisms are involved in a task and to what extent. Performance failures occur if a single mechanism is overloaded, but that does not imply that other mechanisms are also overloaded. Ultimately a task may be described therefore in terms of a pattern of mental load. Some consequences for applied work are discussed.
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References
Allport, D.A., Antonis, B. and Reynolds, P. (1972) On the division of attention: A disproof of the single channel hypothesis. Quart. Journ. of Experimental Psychology, 24, 225–235.
Attneave, F. (1959) Applications of information theory to Psychology. Henry Holt, New York.
Baddeley, A.D. (1962) Some factors influencing the generation of random letter sequences. M.R.C. Applied Psych. Unit report 122.
Bartenwerfer, H. (1970) Psychische Beanspruchung und Ermüdung. In: Handbuch der Psychologie, Volume 9, Gottingen.
Bertelson, P, (1966) Central intermittency twenty years later. Quart. J. Ex. Psychol., 18, 153–163.
Bertelson, P., Renkin, A., Lamye, D. and Taverne, G. (1966): L’évaluation de la capacité résiduelle par la methode de la tache ajoutée. Report of the Free University of Brussels.
Bornemann, E. (1942) Untersuchungen liber den Grad der geistigen Beanspruchung. Arbeitspsychologie, 12, 142–191.
Brainard, R.W., Irby, T.S., Fitts, P.M. and Alluisi,E.A. (1962) Some variables influencing the rate of gain of information. Journ. Exp. Psychol. 63, 105–110.
Broadbent, D.E. (1958) Perception and Communication, Pergamon Press London.
Broadbent, D.E. (1971) Decision and Stress, Academic Press London.
Brown, I.D. (1968) Criticisms of time-sharing techniques for the measurement of perceptual-motor difficulty. Proceedings XVI Inter.Congr. Appl. Psych., Amsterdam Swets and Zeitlinger 322–328.
Burger, G.C.E. (1964) Permissible load and optimal adaptation. Ergonomics, 7, 397–417.
Chapanis, A. (1971) The search for relevance in applied research. In: measurement of man at work, Singleton, W.T., Fox, J.G. and Whitfield, D. (Eds.) 1–14.
Christensen, J.M. (1958) Trends in human factors. Human Factors. 2, 2–7.
Conrad, R. (1951) Speed and load stress in a sensori-motor skill. British Journal of industr. Medicine, 8, 1–7.
Conrad, R. (1954) Missed signals in a sensory-motor skill. Journal of exp. Psychol., 48, 1–9.
Craik, K.J.W. (1947) Theory of the human operator in control systems: I_ the operator as an engineering system. Brit. J. Psychol., 38, 56–61.
Fitts, P.M. (1954) The information capacity of the human motor system in controlling the amplitude of movement. Journ. of exper. Psychol. 47, 381–391.
Fitts, P.M. (1964) Human motor learning. In: Categories of human learning. A.W. Melton Editor, Academic Press, New York.
Frowein, H.W. (1978) Effects of amphetamine and barbiturate in a serial RT-task under paced and selfpaced conditions. Submitted for publication.
Frowein, H.W.and Sanders, A.F. (1978) Effects of stimulus degradation, SR-compatibility and foreperiod duration on choice reaction time and movement time. Submitted for publication.
Gagne, R.M. (Ed) (1962) Psychological principles in system development. Holt, New York.
Garner, W.R. (1962) Uncertainty and structure as psychological concepts. Wiley, New York.
Geer, J.P. v.d. (1963) Data Presentation. In: Communication Processes. Geldard, F.A. (Ed), Pergamon London, 21–43.
Goerres, H.P. (1977) Subjective stress assessment as a criterion for measuring the psychophysical workload on pilots. Agard Conference preprint 217, B12.
Green, R. and Flux, R. (1977) Auditory communication and workload. Agard Conference preprint 216, A4.
Haider, M. (1971) Comparison of objective and subjective methods of the measurement of mental workload. In: Displays and Controls, R.K. Bernotat and K-P Gartner Eds. 17–27. Amsterdam, Swets and Zeitlinger.
Hick, W.E. (1952) On the rate of gain of information. Journal of exp. Psychol., 4, 11–26.
Hopkin, V.D. (1972) Measures in manual workload. In: Displays and controls. Bernotat, R.K. and Gärtner, K-P (Eds) 175–192. Amsterdam, Swets and Zeitlinger.
Jahns, D.W. (1973) A concept of operator workload in manual vehicle operations. Forschungsinstitut fur Anthropotechnik, Report No. 14.
Kahneman, D. (1973) Attention and effort, Prentice Hall, N.J.
Kahneman, D. and Beatty, J. (1966) Pupil diameter and load on memory. Science, 154, 1583–1585.
Kalsbeek, J.W.H. (1967) Mentale belasting; Assen, van Gorkum.
Keele, S.W. (1973) Attention and Human Performance, Pacific Palisades, California.
Kelly, C.R. and Wargo, M.J. (1967) Cross adaptive operator loading tasks, Human Factors, 9, 395–404.
Kerr, B. (1975) Processing demands during movement. Journal of motor behavior, 7, 15–27.
Klinkhamer, H.A.W. (1965) Ergonomische controlelijst. Ned. Instituut voor preventieve Geneeskunde.
Knowles, W.B. (1963) Operator loading tasks. Human Factors, 5, 155–161.
Kornblum, S. (1969) Sequential determinants of information processing in serial and discrete choice reaction time. Psychological Review, 76, 113–132.
Kristofferson, A.B. (1967) Attention and psychophysical time. Acta Psychologica, 27, 93–100.
Lane, N.E., Wherry, R.J. and Streib, M. (1977): The Human Operator Simulator: Estimation of workload reserve using a simulated secondary task. Agard Conference preprint 216, All.
Levison, W.H. (1969) A model for task interference. IEEE Conference Record No. 69C 58 - MMS. Vol. 3.
Mackay, D.M. (1952) The nomenclature of information theory. In: Cybernetics,von Foerster, M. ( Ed ), New York.
Mackworth, N.H. (1957) Too busy or too bored. Proceedings of the 15th international congress of Psychology, North Holland, Amsterdam.
McLeod, P. (1977) A dual task response modality effect: support for multiprocessor models of attention.
McLeod, P. (1977) Does probe RT measure central processing demand? Paper to the experimental Psychology society, Sheffield, March, 1977.
Michon, J.A. (1966) Tapping regularity as a measure of perceptual motor load. Ergonomics, 9, 401–412.
Moraal, J. (1975) The analysis of an inspection task in the steel industry. In: Human Reliability in quality control, Drury, C.G. and Fox, J.G. (Eds), Taylor and Francis, London, 217–230.
Moray, N. (1967) Where is capacity limited? A survey and a model. Acta Psychologica, 27, 84–92.
Moray, N. (1975) A data base for theories of selective listening. In: Attention and Performance, V, Rabbitt, P.M.A. and Dornic, S. (Eds) Academic Press London, 119–134.
Noble, M. Trumbo, D.A. and Fowler, F. (1967) Further evidence of secondary task interference in tracking. Journal exper. Psychol. 73, 146–149.
Posner, M.I. and Klein, R.M. (1973) On the functions of consciousness. Attention and Performance IV, Kornblum, S. (Ed), Academic Press, New York, 21–37.
Poulton, E.C. (1970) Environment and human efficiency. Thomas, Springfield.
Rolfe, J.M. (1971) The secondary task as a measure of mental load. In: Measurement of man at work, Singleton, W.T., Fox, J.G. and Whitfield, D. (Eds) Taylor and Francis 135–148.
Ruyssenaars, N.J.M.G. (1977) Personal communication.
Sanders, A.F. (1977) Structural and functional aspects of the reaction process. In: Attention and Performance VI, Dornic, S (Ed). Erlbaum, 3–25.
Sanders, A.F. (1977) Experimental methods in human engineering. In: Introduction to human engineering, Kraiss, K-F and Moraal, J. Rheinland, Köln, 351–383.
Sanders, A.F. and Keuss, P.J.G. (1969) Grouping and refractoriness in multiple selective responses. Acta Psychologica, 30, 177194.
Schneider, W. and Shiffrin, R.M. (1977): Controlled and automatic human information processing in detection, search and attention. Psychol. Review, 84, 1–66.
Shaffer, L.H. (1975) Multiple attention in continuous verbal tasks. In: Attention and Performance V; Rabbitt, P.M.A. and Dornic, S. (Eds). Academic Press London, 157–166.
Shiffrin, R.M. (1975) The locus and role of attention in memory systems. In: Attention and Performance V; Rabbitt, P.M.A. and Dornic, S. (Eds). Academic Press, London.
Siegel, A.I. and Wolf, J.J. (1961) A technique for evaluating man-machine system design. Human Factors, 1961, 2, 18–27.
Siegel, A.I. and Wolf, J.J. (1969) Man-Machine simulation models. Wiley New York.
Simon, J.R. and Wolf, J.D. (1963) Choice reaction time as a function of angular stimulus-response correspondence and age. Ergonomics, 6, 99–107.
Steininger, K. (1977) Subjective ratings of flying qualities and pilot workload in the operation of a short haul jet transport aircraft. Agard Conference preprint 217, B11.
Sternberg, S. (1969) The discovery of processing stages: Extensions of Donders’ method. Acta Psychologica 30, 276–315.
Taylor, D.A. (1976) Stage analysis of reaction time. Psycholog. Bulletin, 83, 161–191.
Treisman, A.M. and Davies, A. (1973) Divided attention to ear and eye. In:Attention and Performance IV, Kornblum, S. (Ed). Academic Press, New York 101–118.
Triggs, T.J. (1968) Capacity sharing and speeded reactions to successive signals. Human Performance center report No. 9. Ann Arbor, Mich. USA.
Trumbo, D.A. and Noble, M.E. (1970) Secondary task effects on serial verbal learning. Journal of Exper. Psychol. 85, 418–424.
Trumbo, D.A. Noble, M.E. and Swink, J. (1967). Secondary Task interference in the performance of tracking tasks. Journ. of exp. Psychol. 73, 232–240.
Truijens, C.L., Trumbo, D.A. and Wagenaar, W.A. (1976) Amphetamine and barbiturate effects on two tasks performed singly and in combination. Acta Psychologica, 40, 233–244.
Wagenaar, W.A. and Stakenburg, H. (1975). Paced and selfpaced continuous reaction time. Quart. J. exp. Psychol. 27, 559–563.
Welford, A.T. (1967) Single channel operation in the brain. Acta Psychologica, 27, 5–22.
Weyer, G. and Hodapp, Y. (1975): Entwicklung von Fragebogenskalen zur Erfassung der subjektiven Belastung. Arch. Psychol., 3 /4, 161–188.
Wilkinson, R.T. (1969) Some factors influencing the effect of environmental stressors upon performance. Psychological Bulletin, 72, 260–273.
Zipoy, D.R., Premselaar, S.J., Gargett, R.E., Balyea, I.L. and Hall, J.J. (1970) Integrated information presentation and control system study. Volume 1. System development concepts. Technical Report AFFDL-TR-70–79. Wright Patterson AFB.
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Sanders, A.F. (1979). Some Remarks on Mental Load. In: Moray, N. (eds) Mental Workload. NATO Conference Series, vol 8. Springer, Boston, MA. https://doi.org/10.1007/978-1-4757-0884-4_5
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