A Novelty-Induced Change in Episodic NICE Context Account of Primacy Effects in Free RecallReportar como inadecuado




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Formal cognitive models of episodic memoryassume that during encoding list items become associated with a changingcontext representation. However, this representation is recency-biased and thuscan not account for primacy effects under conditions that prevent rehearsal. Inthis paper, it is hypothesized that one source underlying primacy effects isthe detection of novelty. In three experiments, it is shown how novelty at theperceptual and semantic level can explain the full serial position function offirst recall probabilities, including primacy effects. It is proposed that anitem becomes distinctive due to increase in the change within a distributedepisodic context representation, induced by novelty detection. The theory makesthree assumptions. First, items become associated with a distributed contextrepresentation. Second, the context representation changes with itempresentation. Third, the rate of contextual change is related to the perceptualand conceptual difference computed between the presented item and the previousitem or items in the buffer. This theory captures primacy effects in firstrecall probabilities without recourse to a rehearsal process and provides amechanistic account of distinctiveness.

KEYWORDS

Distinctiveness; Novelty-Detection; Episodic Context; Distributed Context; Contextual Change

Cite this paper

Davelaar, E. 2013. A Novelty-Induced Change in Episodic NICE Context Account of Primacy Effects in Free Recall. Psychology, 4, 695-703. doi: 10.4236-psych.2013.49099.





Autor: Eddy J. Davelaar

Fuente: http://www.scirp.org/



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