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Effects of fixed- and varied-context repetition on associative recognition in amnesia

Published online by Cambridge University Press:  07 April 2010

DANIEL L. GREENBERG  and
MIEKE VERFAELLIE
DANIEL L. GREENBERG*
Affiliation:
Memory Disorders Research Center, VA Boston Healthcare System and Boston University School of Medicine
MIEKE VERFAELLIE
Affiliation:
Memory Disorders Research Center, VA Boston Healthcare System and Boston University School of Medicine
*
*Correspondence and reprint requests to: Daniel L. Greenberg, Memory Disorders Research Center, 150 S. Huntington Avenue (151-A), Boston, MA 02130. E-mail: [email protected]
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Abstract

This study compared the effects of fixed- and varied-context repetition on associative recognition in amnesia. Controls and amnesic participants were presented with a set of three-word phrases. Each was presented three times. In the varied-context condition, the verb changed with each presentation; in the fixed-context condition, it remained constant. At test, participants performed an associative-recognition task in which they were shown pairs of words from the study phase and asked to distinguish between intact and recombined pairs. For corrected recognition (hits – false alarms), controls performed better in the varied-context than in the fixed-context repetition condition, whereas amnesic participants’ performance did not differ between conditions. Similarly, controls had lower false-alarm rates in the varied-context condition, but there was no significant effect of condition for the amnesic participants. Thus, varied-context repetition does not improve amnesic participants’ performance on a recollection-dependent associative-recognition task, possibly because the amnesic participants were unable to take advantage of the additional cues that the varied-context encoding condition provided. (JINS, 2010, 16, 596–602.)

Keywords

AmnesiaAnterogradeMemory disordersHippocampusNeuropsychologyAnoxiaEncephalitis
Type
Research Articles
Information
Journal of the International Neuropsychological Society , Volume 16 , Issue 4 , July 2010 , pp. 596 - 602
Copyright
Copyright © The International Neuropsychological Society 2010

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