Aging and enumeration: a selective deficit for the subitization of targets among distractors
Watson, Derrick G. , Maylor, Elizabeth A. and Manson, Nicola J.. (2002) Aging and enumeration: a selective deficit for the subitization of targets among distractors. Psychology and Aging, Vol.17 (No.3). pp. 496-504. ISSN 0882-7974Full text not available from this repository.
Official URL: http://dx.doi.org/10.1037//0882-79184.108.40.2066
The term subitization has been used to refer to the fast and accurate enumeration of up to about 4 items. Beyond 4 items, enumeration becomes more serial and less accurate, with each additional item adding to the total enumeration time. The effects of aging on visual enumeration of targets (Os) were assessed with and without the presence of distractors (Xs). Young participants (n = 30; 18-27 years) showed the usual subitization-counting enumeration function, both with and without the presence of distractors. In contrast, for older participants (n = 35; 65-79 years), evidence for subitization was found only when distractors were absent. This occurred even though they could detect an individual target among distractors in parallel across the field. The results are discussed in relation to recent theories of visual selection and enumeration.
|Item Type:||Journal Article|
|Subjects:||B Philosophy. Psychology. Religion > BF Psychology|
|Divisions:||Faculty of Science > Psychology|
|Library of Congress Subject Headings (LCSH):||Human information processing -- Age factors , Distraction (Psychology), Visual perception|
|Journal or Publication Title:||Psychology and Aging|
|Publisher:||American Psychological Society|
|Number of Pages:||9|
|Page Range:||pp. 496-504|
|Funder:||Economic and Social Research Council (Great Britain) (ESRC)|
|Grant number:||R000239180 (ESRC)|
|References:||Allen, P. A., Ashcraft, M. H., & Weber, T. A. (1992). On mental multiplication and age. Psychology and Aging, 7, 536–545. Ball, K. K., Beard, B. L., Roenker, D. L., Miller, R. L., & Griggs, D. S. (1988). Age and visual search: Expanding the useful field of view. Journal of the Optical Society of America A, 5, 2210–2219. Bundesen, C. (1998). Visual selective attention: Outlines of a choice model, a race model and a computational theory. Visual Cognition, 5, 287–309. Cavanagh, P. (1999, January). Exporting vision to the mind. Paper presented at the meeting on Brain, Conscious Experience, and Human Nature, University of California, San Diego, CA. Cerella, J. (1985). Information processing rates in the elderly. Psychological Bulletin, 98, 67–83. Cerella, J. (1990). Aging and information-processing rate. In J. E. Birren & K. W. Schaie (Eds.), Handbook of the psychology of aging (3rd ed., pp. 201–233). San Diego, CA: Academic Press. Cerella, J. (1991). Age effects may be global, not local: Comment on Fisk and Rogers (1991). Journal of Experimental Psychology: General, 120, 215–223. Cohen, J. D., Romero, R. D., Servan-Schreiber, D., & Farah, M. J. (1994). Mechanisms of spatial attention: The relation of macrostructure to microstructure in parietal neglect. Journal of Cognitive Neuroscience, 6, 377–387. Craik, F. I. M., & Byrd, M. (1982). Aging and cognitive deficits: The role of attentional resources. In F. I. M. Craik & S. Trehub (Eds.), Aging and cognitive processes (pp. 191–211). New York: Plenum Press. Dehaene, S., & Cohen, L. (1994). Dissociable mechanisms of subitizing and counting: Neuropsychological evidence from simultanagnosic patients. Journal of Experimental Psychology: Human Perception and Performance, 20, 958–975. Duncan, J., & Humphreys, G. W. (1989). Visual search and stimulus similarity. Psychological Review, 96, 433–458. Duncan, J., & Humphreys, G. W. (1992). Beyond the search surface: Visual search and attentional engagement. Journal of Experimental Psychology: Human Perception and Performance, 18, 578–588. Fisher, D. L., Duffy, S. A., & Katsikopoulos, K. V. (2000). Cognitive slowing among older adults: What kind and how much? In T. J. Perfect & E. A. Maylor (Eds.), Models of cognitive aging (pp. 87–124). Oxford, England: Oxford University Press. Folk, C. L., Egeth, H., & Kwak, H. (1988). Subitizing: Direct apprehension or serial processing? Perception & Psychophysics, 44, 313–320. Folk, C. L., & Lincourt, A. E. (1996). The effects of age on guided conjunction search. Experimental Aging Research, 22, 99–118. Foster, J. K., Behrmann, M., & Stuss, D. T. (1995). Aging and visual search: Generalized cognitive slowing or selective deficit in attention. Aging and Cognition, 2, 279–299. Gallistel, C. R., & Gelman, R. (1992). Preverbal and verbal counting and computation. Cognition, 44, 43–74. Geary, D. C., & Lin, J. (1998). Numerical cognition: Age-related differences in the speed of executing biologically primary and biologically secondary processes. Experimental Aging Research, 24, 101–137. Geary, D. C., & Wiley, J. G. (1991). Cognitive addition: Strategy choice and speed-of-processing differences in young and elderly adults. Psychology and Aging, 6, 474–483. Gilmore, G. C., Tobias, T. R., & Royer, F. L. (1985). Aging and similarity grouping in visual search. Journal of Gerontology, 40, 586–592. Hale, S., Lima, S. D., & Myerson, J. (1991). General cognitive slowing in the nonlexical domain: An experimental validation. Psychology and Aging, 6, 512–521. Heim, A. W. (1968). AH4 Test. Windsor, England: NFER-NELSON. Horn, J. L., & Cattell, R. B. (1967). Age differences in fluid and crystallized intelligence. Acta Psychologica, 26, 107–129. Humphrey, D. G., & Kramer, A. F. (1997). Age differences in visual search for feature, conjunction, and triple-conjunction targets. Psychology and Aging, 12, 704–717. Humphreys, G. W., & Mu¨ller, H. J. (1993). Search via recursive rejection (SERR): A connectionist model of visual search. Cognitive Psychology, 25, 43–110. Humphreys, G. W., Olson, A., Romani, C. & Riddoch, M. J. (1996). Competitive mechanisms of selection by space and object: A neuropsychological approach. In A. F. Kramer, M. G. H. Coles, & G. D. Logan (Eds.), Converging operations in the study of visual selective attention. New York: Psychonomic Press. Intriligator, J., & Cavanagh, P. (1997). Individuation and the resolution of attention. Investigative Opthalmology & Visual Science, 38, 3209. Kaufman, E. L., Lord, M. W., Reese, T. W., & Volkman, J. (1949). The discrimination of visual number. American Journal of Psychology, 62, 498–525. Kline, D. W., & Scialfa, C. T. (1996). Visual and auditory aging. In J. E. Birren & K. W. Schaie (Eds.), Handbook of the psychology of aging (4th ed., pp. 181–203). London, United Kingdom: Academic Press. Kotary, L., & Hoyer, W. J. (1995). Age and the ability to inhibit distractor information in visual selective attention. Experimental Aging Research, 21, 159–171. Kramer, A. F., Martin-Emerson, R., Larish, J. F., & Andersen, G. J. (1996). Aging and filtering by movement in visual search. Journal of Gerontology: Psychological Sciences, 51B, 201–216. Mandler, G., & Shebo, B. J. (1982). Subitizing: An analysis of its component processes. Journal of Experimental Psychology: General, 111, 1–22. Maylor, E. A., & Henson, R. N. A. (2000). Aging and the Ranschburg effect: No evidence of reduced response suppression in old age. Psychology and Aging, 15, 657–670. Maylor, E. A., & Lavie, N. (1998). The influence of perceptual load on age differences in selective attention. Psychology and Aging, 13, 563–573. McDowd, J. M. (1997). Inhibition in attention and aging. Journal of Gerontology: Psychological Sciences, 52B, P265–P273. Nebes, R. D., Brady, C. B., & Reynolds, C. F., III. (1992). Cognitive slowing in Alzheimer’s disease and geriatric depression. Journal of Gerontology: Psychological Sciences, 47, 331–336. Plude, D. J., & Doussard-Roosevelt, J. A. (1989). Aging, selective attention, and feature integration. Psychology and Aging, 4, 98–105. Pylyshyn, Z. W. (1989). The role of location indexes in spatial perception: A sketch of the FINST spatial-index model. Cognition, 32, 65–97. Pylyshyn, Z. W. (1998). Visual indexes in spatial vision and imagery. In R. D. Wright (Ed.), Visual attention (pp. 215–231). Oxford: Oxford University Press. Pylyshyn, Z. W., & Storm, R. W. (1988). Tracking multiple independent targets: Evidence for a parallel tracking mechanism. Spatial Vision, 3, 179–197. Quinlan, P., & Humphreys, G. W. (1987). Visual search for targets defined by combinations of color, shape, and size: An examination of the task constraints on feature and conjunction searches. Perception & Psychophysics, 41, 455–472. Rastle, K., & Davis, M. H. (2002). On the complexities of measuring AGING AND ENUMERATION 503 naming. Journal of Experimental Psychology: Human Perception and Performance, 28, 307–314. Raven, J. C., Raven, J., & Court, J. H. (1988). The Mill Hill Vocabulary Scale. London: H. K. Lewis & Co. Ltd. Sagi. D., & Julesz. B. (1984). Detection versus discrimination of visual orientation. Perception, 14, 619–628. Salthouse, T. A. (1985). A theory of cognitive aging. Amsterdam: Elsevier. Salthouse, T. A. (1991). Theoretical perspectives on cognitive aging. Hillsdale, NJ: Erlbaum. Salthouse, T. A. (1996). The processing-speed theory of adult age differences in cognition. Psychological Review, 103, 403–428. Sekuler, A. B., Bennett, P. J., & Mamelak, M. (2000). Effects of aging on the useful field of view. Experimental Aging Research, 26, 103–120. Simon, T. J., Peterson, S., Patel, G., & Sathian, K. (1998). Do the magnocellular and parvocellular visual pathways contribute differentially to subitizing and counting? Perception & Psychophysics, 60, 451–464. Sliwinski, M. (1997). Aging and counting speed: Evidence for processspecific slowing. Psychology and Aging, 12, 38–49. Townsend, J. T. (1972). Some results on the identifiability of parallel and serial processes. British Journal of Mathematical and Statistical Psychology, 25, 168–199. Treisman, A. M., & Gelade, G. (1980). A feature-integration theory of attention. Cognitive Psychology, 12, 97–136. Treisman, A. M., & Sato, S. (1990). Conjunction search revisited. Journal of Experimental Psychology: Human Perception and Performance, 16, 459–478. Trick, L. M., Enns, J. T., & Brodeur, D. A. (1996). Life span changes in visual enumeration: The number discrimination task. Developmental Psychology, 32, 925–932. Trick, L. M., & Pylyshyn, Z. W. (1993). What enumeration studies can show us about spatial attention: Evidence for limited capacity preattentive processing. Journal of Experimental Psychology: Human Perception and Performance, 19, 331–351. Trick, L. M., & Pylyshyn, Z. W. (1994). Why are small and large numbers enumerated differently? A limited-capacity preattentive stage in vision. Psychological Review, 101, 80–102. Watson, D. G., & Humphreys, G. W. (1999). The magic number four and temporo-parietal damage: Neurological impairments in counting targets amongst distractors. Cognitive Neuropsychology, 16, 609–629. Watson, D. G., & Maylor, E. A. (2002). Aging and visual marking: Selective deficits for moving stimuli. Psychology and Aging, 17, 321– 339. Wechsler, D. (1981). Manual for the Wechsler Adult Intelligence Scale— Revised. New York: Psychological Corporation. Wolfe, J. M. (1994). Guided search 2.0: A revised model of visual search. Psychonomic Bulletin & Review, 1, 202–238. Wolfe, J. M. (1998). Visual search. In H. Pashler (Ed.), Attention (pp. 13–74). Hove, East Sussex, England: Psychology Press. Wolfe, J. M., Cave, K. R., & Franzel, S. L. (1989). Guided search: An alternative to the feature integration model for visual search. Journal of Experimental Psychology: Human Perception and Performance, 15, 419–433.|
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