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  Adapting to changing memory retrieval demands: Evidence from event-related potentials

Benoit, R. G., Werkle-Bergner, M., Mecklinger, A., & Kray, J. (2009). Adapting to changing memory retrieval demands: Evidence from event-related potentials. Brain and Cognition, 70(1), 123-135. doi:10.1016/j.bandc.2009.01.004.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-002B-7D60-1 Version Permalink: http://hdl.handle.net/11858/00-001M-0000-002B-D41F-B
Genre: Journal Article

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 Creators:
Benoit, Roland G.1, 2, Author              
Werkle-Bergner, Markus1, 3, Author
Mecklinger, Axel1, Author
Kray, Jutta4, Author
Affiliations:
1Experimental Neuropsychology Unit, Saarland University, Saarbrücken, Germany, ou_persistent22              
2Institute of Cognitive Neuroscience, University College London, United Kingdom, ou_persistent22              
3Center for Lifespan Psychology, Max Planck Institute for Human Development, Berlin, Germany, ou_persistent22              
4Developmental Psychology Unit, Saarland University, Saarbrücken, Germany, ou_persistent22              

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Free keywords: Retrieval orientation; Task switching; Episodic memory; Asymmetrical switch cost; Slow-wave; Event-related potentials
 Abstract: This study investigated preparatory processes involved in adapting to changing episodic memory retrieval demands. Event-related potentials (ERPs) were recorded while participants performed a general old/new recognition task and a specific task that also required retrieval of perceptual details. The relevant task remained either constant or changed (predictably or randomly) across trials. Responses were slowed when participants switched from the specific to the general task but not vice versa. Hence, asymmetrical switch costs were observed, suggesting that retrieval preparation is dependent not only on the current retrieval goal but also influenced by recent retrieval attempts. Consistently, over posterior scalp regions ERPs associated with advance preparation were modulated by the preceding task, reflecting increased attentional selection requirements for the general task, and by the foreknowledge about the task sequence. When retrieval demands remained constant, frontal slow-waves elicited by retrieval-cues were more positive going for the specific task, indicating full implementation of a retrieval orientation that allows more efficient retrieval of perceptual details.

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Language(s): eng - English
 Dates: 2009-01-192009-02-282009-06
 Publication Status: Published in print
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Method: -
 Identifiers: DOI: 10.1016/j.bandc.2009.01.004
 Degree: -

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Title: Brain and Cognition
Source Genre: Journal
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Publ. Info: Orlando, Fla. : Academic Press
Pages: - Volume / Issue: 70 (1) Sequence Number: - Start / End Page: 123 - 135 Identifier: ISSN: 0278-2626
CoNE: https://pure.mpg.de/cone/journals/resource/954922648105