Abstract
In a previous paper, it was argued that alertness, selectivity (set), and processing capacity (consciousness) could be identified and studied as separate components of attention. The current paper develops this theme by showing that alertness does not affect the buildup of information within the memory system but only the rate at which a later system responds to that information. Thus, in standard reaction-time tasks, increased alertness produces a reduction in reaction ’time but no decrease in errors. In contrast, providing a model of the signal the S is to process improved both speed and accuracy. The,. presence of a model of what the S is to process varies the vertex neural response to that specific signal as compared to a mismatching signal in the first 200–300 msec after its presentation. Three accounts of this effect are: speeded processing of a matching stimulus, habituation of the electrical response to a matching stimulus, and prolonged or enhanced processing of a mismatch. Evidence favors the first of these explanations, but the other two cannot be dismissed as possible contributors to this effect.
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Bertelson, P. The time course of preparation. Quarterly Journal of Psychology. 1967, 19, 272–279.
Bertelson, P., & Tisseyre, F. The time course of preparation: Confirmatory results with visual and auditory warning signals. Acta Psychologica. 1969, 30, 145–154.
Botwinick, J., & Thompson, L. Premotor and motor components of reaction time. Journal of Experimental Psychology. 1966, 71, 9–15.
Broadbent, D. I.Decision and stress. London: Academic Press. 1971.
Butler, R. A., Spreng, M., & Kneidel, W. D. Stimulus repetition rate: Factors ¨ich influence the auditory evoked potential in man. Psychophysiology, 1969, 5, 665–672.
Donchin, E., & Cohen, L. Average evoked potentials and intramodality selective attention. Electroencephalography & Clinical Neurophysiology, 1967, 22, 537–546.
Fuster, J. M. Effect of stimulation of brain stem on tachistoscopic perception. Science, 1958, 127, 150.
Goff, W. R. Evoked potential correlates of perceptual organization in man. In C. R. Evans and R. B. Mulholland (Eds.),Attention in neurophysiology. London: Butterworth’s, 1969. Pp. 169–193.
Hillyard, S., Squires, K., Bauer, J., & Lindsay, P. Evoked potential correlates of auditory signal detection. Science. 1971, 172, 1357–1360.
Kahneman. D.Attention and effort. New York: Prentice-Hall. in press.
Keele, S. W.Attention and hunan performance. Pacific Palisades, Calif: Goodyear Press. 1973.
Leavitt, F. Accuracy of report and central readiness. Journal of Experimental Psychology, 1969, 81, 542–546.
Mackworth, J. F.Vigilance and habituation. London: Penguin, 1969.
Milner, P.Physiological psychology. New York: Holt, Rinehart & Winston, 1970.
Moray, N.Attention: Selective processes in vision and hearing. New York: Academic Press, 1969.
Posner, M. I., & Boies, S. J. Components of attention. Psychological Review, 1971, 78, 391–408.
Posner, M. I., & Klein, R. On the functions of consciousness. In S. Kornblum (Ed.),Attention and performance IV. New York: Academic Press, 1973 (in press).
Posner, M. I., & Warren, R. E. Traces, concepts, and conscious constructions. In A. W. Melton and E. Martin (Eds.),Coding, theory in learning and memory. New York: Holt, Rinehart & Winston. 1972. Pp. 25–43.
Ritter. W., Simpson, R., & Vaughan, H. G., Jr. Association cortex potentials and reaction time in auditory discrimination. Electroencephalography & Clinical Neurophysiology. in press.
Ritter, W., Vaughan, H. G., Jr., & Costa, L. D. Orienting and habituation to auditory stimuli: Study of short term changes in auditory evoked responses. Electroencephalography & Clinical Neurophysiology. 1968, 25, 550–556.
Sternberg, S. The discovery of processing stages. In W. G. Koster (Ed.),Attention and performance II. Amsterdam: North-Holland Press, 1969. Pp. 276–314.
Sutton, S. The specification of psychological variables in the average evoked potential experiment. In E. Donchin and D. Lindsley (Eds.).Arerage evoked potentials. Washington. D.C: NASA. 1965. Pp. 237–297.
Walter, W. G. Electrical signs of association, expectancy and decision in the human brain. Electroencephalography & Clinical Neurophysiology. 1967. Suppl. 25, 258–263.
Wood, C. C., Goff, W. R., & Day, R. S. Auditory evoked potentials during speech perception. Science. 1971, 173. 1248–1251.
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Portions of this paper were presented to the Psychonomic Society, November ,1971, and as an invited address to the Midwestern Psychological Association, May 1972. This research was supported in part by Grant GB 21020 from the National Science Foundation.
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Posner, M.I., Klein, R., Summers, J. et al. On the selection of signals. Memory & Cognition 1, 2–12 (1973). https://doi.org/10.3758/BF03198062
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DOI: https://doi.org/10.3758/BF03198062