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Semantic similarity dissociates shortfrom long-term recency effects: testing a neurocomputational model of list memory

By Eddy J. Davelaar, H.J. Haarmann, Y. Goshen-Gottstein and Marius Usher

Abstract

The finding that recency effects can occur not only in immediate free recall (i.e., short-term recency) but also in the continuous-distractor task (i.e., long-term recency) has led many theorists to reject the distinction between short- and long-term memory stores. Recently, we have argued that long-term recency effects do not undermine the concept of a short-term store, and we have presented a neurocomputational model that accounts for both short- and long-term recency and for a series of dissociations between these two effects. Here, we present a new dissociation between short- and long-term recency based on semantic similarity, which is predicted by our model. This dissociation is due to the mutual support between associated items in the short-term store, which takes place in immediate free recall and delayed free recall but not in continuous-distractor free recall

Topics: psyc
Publisher: Springer
Year: 2006
OAI identifier: oai:eprints.bbk.ac.uk.oai2:1259

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