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  • Title: Short-term memory for pictures and words by mentally retarded and nonretarded persons.
    Author: Ellis NR, Wooldridge PW.
    Journal: Am J Ment Defic; 1985 May; 89(6):622-6. PubMed ID: 4003457.
    Abstract:
    Mentally retarded and nonretarded persons were compared in a Brown-Peterson short-term memory task for the retention of words and pictures over intervals up to 30 seconds. The retarded subjects forgot more rapidly over the initial 10 seconds. They also retained pictures better than they did words; the nonretarded subjects retained these stimuli equally well. The results were theoretically interpreted as reflecting a structural memory deficit in retarded individuals, who were viewed as having greater facility with an imaginal memory code than with a verbal code. Transforming information from one code to another may also have been more difficult for retarded persons.
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