OVERT AND COVERT REHEARSAL IN SHORT-TERM MOTOR MEMORY OF MENTALLY-RETARDED AND NONRETARDED PERSONS

  • 1 January 1980
    • journal article
    • research article
    • Vol. 85  (1) , 69-77
Abstract
Overt rehearsal and the presence of covert rehearsal in short-term motor memory of a retarded group and 2 nonretarded groups of students (100 in each group) was investigated. Subjects were randomly assigned to 5 retention conditions; immediate recall, a 20 s unfilled interval, a 20 s interval filled with interpolated mental activity, a 20 s interval of overt rehearsal; and a 20 s interval filled with simultaneous overt rehearsal and interpolated mental activity. Retarded persons did not engage in spontaneous covert rehearsal of motor information while nonretarded persons did. The short-term motor memory of retarded and nonretarded groups was not different when covert rehearsal was not possible and during overt rehearsal. Overt rehearsal did not facilitate motor memory.

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