Reference code: | PT/FB/BL-2010-064.02 |
Location: | Arquivo PCA - Pasta 3/2010
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Title:
| Different routes of semantic access modulate the interplay between episodic and semantic memories
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Publication year: | 2012
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URL:
| http://www.cogneurosociety.org/wordpress/wp-content/themes/CNStheme/downloads/CNS2012_Program.pdf
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Abstract/Results: | ABSTRACT:
Episodic and semantic memories interact dynamically, but how this occurs is largely unknown. Certain kinds of semantic encoding operations result primarily in changes to familiarity-based episodic memory judgments. Others, meanwhile, result primarily in changes to recollection-based judgments. These findings can potentially be reconciled by assuming that stimulus-driven and strategy-driven semantic manipulations evoke different kinds of interactions with episodic retrieval. The former impact primarily on the process of familiarity, while the latter impact on the process of recollection. We investigated this possibility in two experiments. In both, event-related potentials (ERPs) were acquired during the test phases of recognition memory tasks. In the first experiment, participants completed a lexical decision task at study. Memory was superior for words than for non-words, and an ERP index of familiarity was larger for words, consistent with the view that (i) stimulus-driven access influences familiarity, and (ii) this process is responsible for the differences in response accuracy. In the second experiment, words were subjected to either semantic or non-semantic encoding. Memory at test was superior following semantic rather than non-semantic encoding. ERP indices of familiarity at test were invariant across encoding tasks, and an ERP index of recollection was larger following deep encoding. Overall, the correspondences between the behavioural and ERP findings indicate that the route by which semantic information is accessed plays a critical role in guiding the type of interplay between episodic and semantic memories.
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Accessibility: | Document exists in file
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Copyright/Reproduction:
| By permission
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Language:
| eng
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Author:
| Coad, B.
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Secondary author(s):
| Wilding, E., Donaldson, D., Greve, A.
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Document type:
| Abstract book
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Number of reproductions:
| 1
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Reference:
| Coad, B., Wilding, E., Donaldson, D., & Greve, A. (2012). Different routes of semantic access modulate the interplay between episodic and semantic memories. In Cognitive Neuroscience Society - 2012 Annual Meeting Program (p. 191). Chicago, IL, USA.
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Indexed document: | No
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Keywords: | Psychophysiology / Episodic memory / Semantic information / Event-related potential (ERP)
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Different routes of semantic access modulate the interplay between episodic and semantic memories |