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| Research article summary (published 28 Feb 2000): |
A dissociation in infants' memory for stimulus size: evidence for the early development of multiple memory systems.
Full Abstract
Adults' memory performance on recognition (explicit memory) tests is sensitive to stimulus size, but their performance on priming (implicit memory) tests is not. This memory dissociation is taken as evidence for two, functionally distinct memory systems. Young infants, however, are thought to possess only a single representational system that supports implicit memory; the system that supports explicit memory is thought not to mature before 8-9 months of age. In two experiments with 54 infants, we asked if 3-month-olds exhibit a memory dissociation for stimulus size on recognition and priming tests. All infants learned to move a mobile displaying +s of a given size. In Experiment 1, infants recognized +s in the original size but not 33% smaller or larger. In Experiment 2, +s were effective memory primes in a reactivation task, irrespective of size. The finding that young infants exhibit a memory dissociation for stimulus size adds to growing evidence that two memory systems are functional from early in development. Copyright 2000 John Wiley & Sons, Inc.
Author information
Author/s: Gerhardstein, P (P); Adler, S A (SA); Rovee-Collier, C (C);
Affiliation: Department of Psychology, Binghamton University-SUNY, Binghamton, NY 13902-6000, USA. gerhard(-atsign-)binghamton.edu
Grants: K05-MH 00902 (Agency:NIMH NIH HHS) ; R37-MH 32307 (Agency:NIMH NIH HHS)
Journal and publication information
Publication Type: Journal Article; Research Support, U.S. Gov't, P.H.S.
Journal: Developmental psychobiology (Dev Psychobiol), published in UNITED STATES. (Language: eng)
Reference: 2000-Mar; vol 36 (issue 2) : pp 123-35
Dates: Created 2000/04/04; Completed 2000/04/04; Revised 2007/11/14;
PMID: 10689283, status: MEDLINE (last retrieval date: 2/18/2009, IMS Date: )
Sourced from the National Library of Medicine. Abstract text and other information may be subject to copyright.
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