Abstract
The purpose in this study was to distinguish among possible mechanisms by which focused attention facilitates visual perceptual processing in a cued discrimination task. In two experiments, subjects verified the presence of an X in masked, briefly presented, four-letter arrays. On most trials, subjects were precued to the location of the stimulus array (valid-cue condition); however, sometimes a nonstimulus location was cued (invalid-cue condition). The exposure duration of the stimulus array was varied. In Experiment 1, there was a large effect of cue condition on hit probability, but no effect of cue condition on false alarm probability. In Experiment 2, there was a large effect of cue condition ond′. In both experiments, the stimulus duration needed to reach any given performance level was greater by a constant factor for stimuli in the invalid-cue than it was in the valid-cue condition. This suggests that visual information is acquired (or utilized) more rapidly from attended than from unattended locations.
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Bashinski, H. S., &Bacharach, V. R. (1980). Enhancement of perceptual sensitivity as the result of selectively attending to spatial locations.Perception & Psychophysics,28, 241–248.
Cheal, M. L., & Lyon, D. R. (1988, November).Evidence against a moving spotlight theory of visual attention. Paper presented at the Twenty-Ninth Annual Meeting of the Psychonomic Society, Chicago.
Davis, E. T., Kramer, P., &Ghaham, N. (1983). Uncertainty about spatial frequency, spatial position, or contrast of visual patterns.Perception & Psychophysics,33, 20–28.
Downing, C. J. (1988). Expectancy and visual-spatial attention: Effects on perceptual quality.Journal of Experimental Psychology: Human Perception & Performance,14, 188–202.
Driver, J., &Baylis, G. C. (1989). Movement and visual attention: The spotlight metaphor breaks down.Journal of Experimental Psychology: Human Perception & Performance,15, 448–456.
Eriksen, B. A., &Eriksen, C. W. (1974). Effects of noise letters upon the identification of a target letter in a nonsearch task.Perception & Psychophysics,16, 143–149.
Eriksen, C. W., &Hoffman, J. E. (1972). Temporal and spatial characteristics of selective encoding from visual displays.Perception & Psychophysics,12, 201–204.
Eriksen, C. W., &Murphy, T. D. (1987). Movement of attentional focus across the visual field: A critical look at the evidence.Perception & Psychophysics,42, 299–305.
Eriksen, C. W., &St. James, J. D. (1986). Visual attention within and around the field of focal attention: A zoom lens model.Perception & Psychophysics,40, 225–240.
Eriksen, C. W., &Yeh, Y. (1985). Allocation of attention in the visual field.Journal of Experimental Psychology: Human Perception & Performance,11, 583–597.
Folk, C. L., &Egeth, H. (1989). Does the identification of simple features require serial processing?Journal of Experimental Psychology: Human Perception & Performance,15, 97–110.
Humphreys, G. W. (1981). Flexibility of attention between stimulus dimensions.Perception & Psychophysics,30, 291–302.
Jonides, J. (1980). Towards a model of the mind’s eye’s movement.Canadian Journal of Psychology,34, 103–112.
Loftus, G. R. (1978). On interpretation of interactions.Memory & Cognition,6, 312–319.
Loftus, G. R. (1985). Picture perception: Effects of luminance on available information and information-extraction rate.Journal of Experimental Psychology: General,114, 342–356.
Loftus, G. R., Johnson, C. A., &Shimamura, A. P. (1985). How much is an icon worth?Journal of Experimental Psychology: Human Perception & Performance,11, 1–13.
Murphy, T. D., &Eriksen, C. W. (1987). Temporal changes in the distribution of attention in the visual field in response to precues.Perception & Psychophysics,42, 576–586.
Posner, M. I. (1980). Orienting of attention.Quarterly Journal of Experimental Psychology,32, 3–25.
Posner, M. L., Snyder, C. R. R., &Davidson, B. J. (1980). Attention and the detection of signals.Journal of Experimental Psychology: General,109, 160–174.
Prinzmetal, W., Presti, D. E., &Posner, M. I. (1986). Docs attention affect visual feature integration?Journal of Experimental Psychology: Human Perception & Performance,12, 361–369.
Reinitz, M. T., Wright, E., &Loftus, G. R. (1989). Effects of semantic priming on visual encoding of pictures.Journal of Experimental Psychology: General,118, 280–297.
Remington, R. W., &Pierce, L. (1984), Moving attention: Evidence for time-invariant shifts of visual selective attention.Perception & Psychophysics,35, 393–399.
Shulman, G. L., Remington, R. W., &McLean, J. P. (1979). Moving attention through visual space.Journal of Experimental Psychology: Human Perception & Performance,5, 522–526.
Stiles, W. S. (1939). The directional sensitivity of the retina and the spectral sensitivities of the rods and cones.Proceedings of the Royal Society of London (Series B),127, 64–105.
Teichner, W. H., &Krebs, M. J. (1974). Laws of visual choice reaction time.Psychological Review,81, 75–98.
Treisman, A., &Gelade, G. (1980). A feature-integration theory of attention.Cognitive Psychology,12, 97–136.
Tsal, Y. (1983). Movements of attention across the visual field.Journal of Experimental Psychology: Human Perception & Performance,9, 523–530.
van der Heijden, A. H. C., Wolters, G., Groep, J. C., &Hagenaar, R. (1987). Single-letter recognition accuracy benefits from advance cuing of location.Perception &. Psychophysics,42, 503–509.
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Reinitz, M.T. Effects of spatially directed attention on visual encoding. Perception & Psychophysics 47, 497–505 (1990). https://doi.org/10.3758/BF03208183
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DOI: https://doi.org/10.3758/BF03208183