Abstract
Young adult and aged squirrel monkeys were tested on variations of a two-choice, spatial delayed-response task. Aged monkeys committed more errors than did young monkeys. However, the diminished accuracy of the aged monkeys was not attributable to a memory deficiency because the difference was independent of delay interval. Aged monkeys did not display less responsesequence variability and were no more likely to commit systematic errors than were young monkeys. When response accuracy decreased as a result of increased delay intervals, or absence of a predelay cue, both age groups increased the proportion of errors attributable to random responding; however, the proportion of errors attributable to systematic errors either decreased or remained constant.
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Barnes, C. A., &McNaughton, B. L. (1985). Spatial information How and where is it stored? In N. M. Weinberger, J. L. McGaugh, & G. Lynch (Eds.),Memory systems of the brain (pp. 49–61) New York: Guilford.
Bartus, R. T., Dean, R. L., &Beer, B. (1980). Memory deficits in aged cebus monkeys and facilitation with central cholinomimetics.Neurobiology of Aging,1, 145–152.
Bartus, R. T., Dean, R. L., &Fleming, D. L. (1979). Aging in the rhesus monkey: Effects on visual discrimination and reversal learning.Journal of Gerontology,34, 209–219.
Bartus, R. T., Fleming, D. L., &Johnson, H. R. (1978). Aging in the rhesus monkey: Debilitating effects on short-term memory.Journal of Gerontology,33, 858–871.
Bernstein, I. S. (1961). Response variability and rigidity in the adult chimpanzee.Journal of Gerontology,16, 381–386.
Birren, J. E. (1962). Age differences in learning a two-choice water maze by rats.Journal of Gerontology,17, 207–213.
Changeux, J. P., Heidmann, T., &Patte, P. (1984). Learning by selection. In P. Marler & H. S. Terrace (Eds.),The biology of learning (pp. 115–133). Berlin: Springer-Verlag.
Elias, P. K., &Elias, M. F. (1976) Effects of age on learning ability: Contributions from the animal literatureExperimental Aging Research,2, 165–186.
Flicker, C., Bartus, R. T., Crook, T. H., &Ferris, S. H. (1984) Effects of aging and dementia upon recent visuospatial memory.Psychobiology of Aging,5, 275–283.
Fobes, J. L., &King, J. E. (1982). Measuring primate learning abilities. In J. L. Fobes & J. E. King (Eds),Primate behavior (pp 289–326). New York: Academic Press.
French, G. M. (1959). Performance of squirrel monkeys on variants of delayed response.Journal of Comparative & Physiological Psychology,52, 741–745.
Goodrick, C. L. (1968). Learning, retention, and extinction of a complex maze habit for mature-young and senescent Wistar albino rats.Journal of Gerontology,23, 298–304.
Goodrick, C. L. (1972). Learning by mature-young and aged Wistar albino rats as a function of test complexity.Journal of Gerontology,27, 353–357.
Goodrick, C. L. (1975). Behavioral rigidity as a mechanism for facilitation of problem solving for aged rats.Journal of Gerontology,30, 181–184.
Green, D. M. (1964). General prediction relating yes-no and forced choice results.Journal of the Acoustical Society of America,36, 1042.
Green, D. M., &Swets, J. A. (1974).Signal detection and theory and psychophysics. New York: Krieger.
Grier, J. B. (1971). Nonparametric indices for sensitivity and bias: Computing formulas.Psychological Bulletin,75, 424–429.
Harlow, H. F. (1959). Learning set and error factor theory. In S. Koch (Ed.),Psychology: A study of a science (Vol 2, pp. 492–537). New York: McGraw-Hill.
Harrison, D. W., &Isaac, W. (1984). Disruption and habituation of stable fixed-interval behavior in younger and older monkeys.Physiology & Behavior,32, 341–344.
Hopf, S., &Ploog, D. (1979). Life span in captive squirrel monkeys (Saimiri) with pathological and reproductive records.Primates,20, 313–316.
Kubanis, P., &Zornetzer, S. F. (1981). Age related behavioral and neurobiological changes: A review with an emphasis on memory.Behavioral & Neural Biology,31, 115–172.
Lentz, J. L., &King, J. E. (1981). Sources of errors by capuchin monkeys on delayed response.Animal Learning & Behavior,9, 183–188.
Levine, M. (1965). Hypothesis behavior. In A. M. Schrier, H. F. Harlow, & F. Stollnitz (Eds.),Behavior of nonhuman primates (Vol. 1, pp. 97–127). New York: Academic Press.
Medin, D. L. (1969). Form perception and pattern reproduction by monkeys.Journal of Comparative & Physiological Psychology,68, 412–419.
Meudell, P. R. (1983). The development and dissolution of memory. In A. Mayes (Ed.),Memory in humans and animals (pp. 83–132). New York: Van Nostrand Reingold.
Park, P. C., Puglisi, J. T., &Sovacool, J. (1983). Memory for pictures, words, and spatial location in older adults: Evidence for pictonal superiority.Journal of Gerontology,38, 582–588.
Riopelle, A. J., &Rogers, C. M. (1965). Age changes in chimpanzees In A. M. Schrier, H. F. Harlow, & F. Stollnitz (Eds.),Behavior of nonhuman primates (Vol. 2, pp. 449–462). New York: Academic Press.
Skinner, B. F. (1984). Selection by consequences.Behavioral & Brain Sciences,7, 477–510.
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King, J.E., Michels, R.R. Error analysis of delayed response in aged squirrel monkeys. Animal Learning & Behavior 17, 157–162 (1989). https://doi.org/10.3758/BF03207630
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DOI: https://doi.org/10.3758/BF03207630