Abstract
As John Locke pointed out, there are at least two sources of the contents of the mind: events that occur in the world and events that originate in the mind. Memory, as a record of experience, should contain information from both sources. The present studies investigated memory for the frequency of externally and internally generated events. Individual items were presented to subjects varying numbers of times and tested varying numbers of times. Later, subjects were asked to estimate the frequency of both types of events. Experiment 1 showed that internally generated events influenced the judged frequency of externally generated events and vice versa. The first of these was called the IFE effect and the second the IFI effect. Experiment 2 indicated that the IFE effect was greater when tests consisted of overt, as compared to covert, recall trials. The results were discussed in terms of a model for storing and using occurrence information which would account for both our ability to discriminate between and our tendency to confuse internally and externally generated memory representations.
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Johnson, M. K.Constructive aspects of memory: Historical antecedents, Paper presented at the annual meetings of the American Psychological Association, Chicago, September 1975.
References
Atwood, G. An experimental study of visual imagination and memory.Cognitive Psychology, 1971,2, 290–299.
Battig, W. F., & Montague, W. E. Category norms for verbal items in 56 categories: A replication and extension of the Connecticut category norms.Journal of Experimental Psychology Monograph, 1969,80No. 3, Part 2).
Begg, I. Imagery and integration in the recall of words.Canadian Journal of Psychology, 1973,27, 159–167.
Bower, G. H. Mental imagery and associative learning. In L. Gregg (Ed.),Cognition in learning and memory, New York: Wiley, 1972.
Brooks, L. R. The suppression of visualization by reading.Quarterly Journal of Experimental Psychology, 1967,19, 289–299.
Ekstrand, B. R., Wallace, W. P., &Underwood, B. J. A frequency theory of verbal-discrimination learning.Psychological Review, 1966,73, 566–578.
Hintzman, D. L. Apparent frequency as a function of frequency and the spacing of repetitions.Journal of Experimental Psychology, 1969,80, 139–145.
Hintzman, D. L., &Block, R. A. Memory judgments and the effects of spacing.Journal of Verbal Learning and Verbal Behavior, 1970,9, 561–566.
Hintzman, D. L., &Block, R. A. Repetition and memory: Evidence for a multiple-trace hypothesis.Journal of Experimental Psychology, 1971,88, 297–306.
Hintzman, D. L., Block, R. A., &Summers, J. J. Modality tags and memory for repetitions: Locus of the spacing effect.Journal of Verbal Learning and Verbal Behavior, 1973,12, 229–238.
Hogan, R. M., &Kintsch, W. Differential effects of study and test trials on long-term recognition and recall.Journal of Verbal Learning and Verbal Behavior, 1971,10, 562–567.
Howell, W. C. Representation of frequency in memory.Psychological Bulletin, 1973,80, 44–53.
Jacoby, L. L. The role of mental contiguity in memory: Registration and retrieval effect.Journal of Verbal Learning and Verbal Behavior, 1974,13, 483–496.
Johnson, M. K., Bransford, J. D., &Solomon, S. K. Memory for tacit implications of sentences.Journal of Experimental Psychology, 1973,98, 203–205.
Kimble, G. A. Mediating associations.Journal of Experimental Psychology, 1968,76, 263–266.
Leicht, K. L. Recall and judged frequency of implicitly occurring words.Journal of Verbal Learning and Verbal Behavior, 1968,7, 918–923.
Postman, L. Learned principles of organization in memory.Psychological Monographs, 1954,68(No. 374).
Rowe, E. J. Depth of processing in a frequency judgment task.Journal of Verbal Learning and Verbal Behavior, 1974,13, 638–643.
Sulin, R, A., &Dooling, D. J. Intrusion of a thematic idea in retention of prose.Journal of Experimental Psychology, 1974,103, 255–262.
Tversky, A., &Kahneman, D. Availability: A heuristic for judging frequency and probability.Cognitive Psychology, 1973,5, 207–232.
Underwood, B. J. False recognition produced by implicit verbal responses.Journal of Experimental Psychology, 1965,70, 122–129.
Underwood, B. J. Attributes of memory.Psychological Review, 1969,76, 559–573.
Underwood, B. J., Zimmerman, J., &Freund, J. S. Retention of frequency information with observations on recognition and recall.Journal or Experimental Psychology, 1971,87, 149–162.
Zacks, R. T. Invariance of total learning time under different conditions of practice.Journal of Experimental Psychology, 1969,82, 441–447.
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Johnson, M.K., Taylor, T.H. & Raye, C.L. Fact and fantasy: The effects of internally generated events on the apparent frequency of externally generated events. Memory & Cognition 5, 116–122 (1977). https://doi.org/10.3758/BF03209202
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DOI: https://doi.org/10.3758/BF03209202