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Glucocorticoid-induced impairment of declarative memory retrieval is associated with reduced blood flow in the medial temporal lobe

de Quervain, Dominique J.-F. and Henke, Katharina and Aerni, Amanda and Treyer, Valerie and McGaugh, James L. and Berthold, Thomas and Nitsch, Roger M. and Buck, Alfred and Roozendaal, Benno and Hock, Christoph. (2003) Glucocorticoid-induced impairment of declarative memory retrieval is associated with reduced blood flow in the medial temporal lobe. European Journal of Neuroscience, 17 (6). pp. 1296-1302.

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Official URL: http://edoc.unibas.ch/46539/

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Abstract

Previous work indicates that stress levels of circulating glucocorticoids can impair retrieval of declarative memory in human subjects. Several studies have reported that declarative memory retrieval relies on the medial temporal lobe. The present study used H(2)(15)O-positron emission tomography to investigate whether acutely elevated glucocorticoid levels affect regional cerebral blood flow in the medial temporal lobe, as well as in other brain regions, during declarative memory retrieval in healthy male human subjects. When measured over four different declarative memory retrieval tasks, a single, stress-level dose of cortisone (25 mg) administered orally 1 h before retention testing, induced a large decrease in regional cerebral blood flow in the right posterior medial temporal lobe, the left visual cortex and the cerebellum. The decrease in the right posterior medial temporal lobe was maximal in the parahippocampal gyrus, a region associated with successful verbal memory retrieval. Cortisone administration also significantly impaired cued recall of word pairs learned 24 h earlier, while drug effects on performance in the other tasks (verbal recognition, semantic generation and categorization) were not significant. The present results provide further evidence that acutely elevated glucocorticoid levels can impair declarative memory retrieval processes and suggest that such impairments may be related to a disturbance of medial temporal lobe function.
Faculties and Departments:03 Faculty of Medicine > Bereich Psychiatrie (Klinik) > Erwachsenenpsychiatrie UPK > Kognitive Neurowissenschaften (de Quervain)
03 Faculty of Medicine > Departement Klinische Forschung > Bereich Psychiatrie (Klinik) > Erwachsenenpsychiatrie UPK > Kognitive Neurowissenschaften (de Quervain)
07 Faculty of Psychology > Departement Psychologie > Forschungsbereich Klinische Psychologie und Neurowissenschaften > Cognitive Neuroscience (de Quervain)
UniBasel Contributors:de Quervain, Dominique J.-F.
Item Type:Article, refereed
Article Subtype:Research Article
Publisher:Wiley
ISSN:0953-816X
e-ISSN:1460-9568
Note:Publication type according to Uni Basel Research Database: Journal article
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Last Modified:23 Nov 2017 10:25
Deposited On:23 Nov 2017 10:25

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