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Electrophysiological dissociation of retrieval orientation and retrieval effort

Robb, W; Rugg, M; (2002) Electrophysiological dissociation of retrieval orientation and retrieval effort. Psychonomic Bulletin and Review , 9 (3) 583 - 589.

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Abstract

The neural correlates of retrieval orientation—the differential processing of retrieval cues according to the form of the sought-for information—and retrieval effort were investigated in a factorial design. ERPs elicited by test words were recorded during four recognition memory tests. Orientation was manipulated by varying study material: The study phases preceding two of the tests employed pictures, whereas the study phases preceding the other two tests employed words. Effort was manipulated by varying difficulty, using a combination of the variables of length of study list and study-test interval. ERPs elicited by correctly classified new test words were sensitive to both the study material and, to a much lesser extent, the difficulty of manipulations. Whereas difficulty effects onset early and were shortlived, the effects of study material onset later, extended for several hundred milliseconds, and did not vary according to difficulty. It was concluded that retrieval orientation exerts a major influence on the processing of recognition memory test items.

Type:Article
Title:Electrophysiological dissociation of retrieval orientation and retrieval effort
Additional information:Imported via OAI, 22:36:53 2nd Aug 2007
UCL classification:UCL > School of Life and Medical Sciences > Faculty of Brain Sciences > Psychology and Language Sciences (Division of) > Institute of Cognitive Neuroscience
UCL > School of Life and Medical Sciences > Faculty of Life Sciences

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