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Process dissociation between contextual retrieval and item recognition

Weis S., , Specht K., , Klaver P., , Tendolkar I., , Willmes K., , Ruhlmann J., , Elger C.E., and Fernandez G., (2004) Process dissociation between contextual retrieval and item recognition NeuroReport, 15 (18). pp. 2729-2733.

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Abstract

We employed a source memory task in an event related fMRI study to dissociate MTL processes associated with either contextual retrieval or item recognition. To introduce context during study, stimuli (photographs of buildings and natural landscapes) were transformed into one of four single-color-scales: red, blue, yellow, or green. In the subsequent old/new recognition memory test, all stimuli were presented as gray scale photographs, and old-responses were followed by a four-alternative source judgment referring to the color in which the stimulus was presented during study. Our results suggest a clear-cut process dissociation within the human MTL. While an activity increase accompanies successful retrieval of contextual information, an activity decrease provides a familiarity signal that is sufficient for successful item recognition. © 2004 Lippincott Williams & Wilkins.

Item Type: Article
Authors :
NameEmailORCID
Weis S., UNSPECIFIEDUNSPECIFIED
Specht K., UNSPECIFIEDUNSPECIFIED
Klaver P., UNSPECIFIEDUNSPECIFIED
Tendolkar I., UNSPECIFIEDUNSPECIFIED
Willmes K., UNSPECIFIEDUNSPECIFIED
Ruhlmann J., UNSPECIFIEDUNSPECIFIED
Elger C.E., UNSPECIFIEDUNSPECIFIED
Fernandez G., UNSPECIFIEDUNSPECIFIED
Date : 2004
Uncontrolled Keywords : Declarative memory, Familiarity, fMRI, Hippocampus, Recollection, Source memory
Depositing User : Symplectic Elements
Date Deposited : 17 May 2017 10:41
Last Modified : 17 May 2017 10:41
URI: http://epubs.surrey.ac.uk/id/eprint/828800

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