Abstract
The nature of processing demands during a letter-match task was investigated in an extension of the Posner and Boies (1971) paradigm. In Experiment I, a visual probe was employed in addition to an auditory probe in two different experimental conditions. The shape of the auditory probe reaction time (RT) function was similar to that found by Posner and Boies. However, in contrast to their findings, RT was greatly increased shortly after presentation of the first letter for the visual probe function. It was concluded that perceptual as well as postperceptual limitations on processing capacity exist. A second experiment provided further support for this hypothesis.
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Egeth, H. E. Selective attention,Psychological Bulletin, 1967,67, 41–57.
Hintzman, D. L., Carre, F. A., Eskridge, V. L., Owens, A. M., Shaff, S. S., &Sparks, M. E. “Stroop effect: Input or output phenomenon?”Journal of Experimental Psychology, 1972,95, 245–274.
Keele, S. W. Attentional demands of memory retrieval.Journal of Experimental Psychology, 1972,93, 245–248.
Keele, S. W.Attention and human performance. Pacific Palisades, Calif: Goodyear, 1973.
Keele, S. W., &Boies, S. J. Processing demands of sequential information.Memory & Cognition, 1973,1, 85–90.
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. K. Kornblum (Ed.),Attention and perjormance IV. Amsterdam: North-Holland, 1973.
Posner, M. I., Klein, R., Summers, J., &Buggie, S. On the selection of signals.Memory & Cognition, 1973,1, 2–12.
Segal, S. J., &Fusella, V. The influence of imaged pictures and sounds on detection of visual and auditory signals.Journal of Experimental Psychology, 1970,83, 458–464.
Shiffrin, R. M., &Gardner, G. T. Visual processing capacity and attentional control.Journal of Experimental Psychology. 1972,93, 72–82.
Shiffrin, R. M., Craig, J. C., &Cohen, E. On the degree of attention and capacity limitations in tactile processing.Perception & Psychophysics, 1973,13, 328–336.
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This research is based on a senior thesis submitted to the Department of Psychology, New College, in partial fulfillment of the requirements for the BA degree and was completed in March 1974.
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Shwartz, S.P. Capacity limitations in human information processing. Memory & Cognition 4, 763–768 (1976). https://doi.org/10.3758/BF03213246
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DOI: https://doi.org/10.3758/BF03213246