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  • Title: The effect of early list manipulations on the DRM illusion.
    Author: Fam J, Huff MJ, Westbrook RF, Holmes NM.
    Journal: Q J Exp Psychol (Hove); 2021 Nov; 74(11):1924-1934. PubMed ID: 33840269.
    Abstract:
    The Deese-Roediger-McDermott (DRM) paradigm is widely used to study false memory in the laboratory. It tests memory for lists of semantically related words (correct list item memories) and their non-presented associates (false lure memories). Evidence suggests that early items in DRM lists could make an especially significant contribution to false memories of lures, as they may critically influence the underlying associative activation and/or gist extraction processes. The present study tested this suggestion by using two manipulations that were intended to affect processing of early DRM list items. The first was interpolation of a semantically unrelated distractor item among the list items (Experiments 1 and 2). The second was arranging for these items to be either the strongest or weakest associates of the lure (Experiment 2). In Experiment 1, a distractor item reduced both list item and lure recall when presented early in a DRM list, but selectively disrupted list item recall when presented late in the list. In Experiment 2, arranging for the early list items to be the weakest associates of the lure reduced false recall of the lure but had no effect on list item recall. The findings are discussed with respect to theories that explain false memory in the DRM protocol, including fuzzy trace theory (FTT) and activation-monitoring theory (AMT). They are also discussed with respect to general theories of memory and the potential role of category/context information in generating false memories.
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