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Abilities and Neural Mechanisms Underlying AB̄ Performance
Vol. 59, No. 2 (Apr., 1988), pp. 523-527
Stable URL: http://www.jstor.org/stable/1130330
Page Count: 5
You can always find the topics here!Topics: Infants, Frontal lobe, Brain damage, Memory, Amnesia, Hippocampus, Memory interference, Child development, Lesions, Toys
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Schacter, Moscovitch, Tulving, McLachlan, and Freedman propose that infants may make the AB̄ error because of immaturity of the memory system damaged in amnesia (e. g., the hippocampus). They contrast this with the proposal that infants may make the AB̄ error because of immaturity of the frontal lobe system (Diamond; Diamond & Goldman-Rakic). Schacter et al.'s choice of subjects, however, did not permit a test of these 2 proposals, and characteristics of their task, such as length of delay, make comparison with infants difficult. Schacter et al. discuss sensitivity to proactive interference as a possible explanation for the AB̄ error, but sensitivity to PI is more closely associated with frontal lobe damage than with amnesia. Schacter et al. associate perseveration with immaturity or damage to the frontal lobe; it is suggested here that this is better characterized as lack of inhibitory control. Tasks that are most likely to require frontal cortex function are those that demand both short-term memory and inhibitory control. AB̄ is an excellent example of such a task.
Child Development © 1988 Society for Research in Child Development