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3 results on '"Parapatics, Silvia"'

1. Sleep classification according to AASM and Rechtschaffen & Kales: effects on sleep scoring parameters.

Author

Moser, Doris, Anderer, Peter, Gruber, Georg, Parapatics, Silvia, Loretz, Erna, Boeck, Marion, Kloesch, Gerhard, Heller, Esther, Schmidt, Andrea, Danker-Hopfe, Heidi, Saletu, Bernd, Zeitlhofer, Josef, and Dorffner, Georg

Abstract

To investigate differences between visual sleep scoring according to the classification developed by Rechtschaffen and Kales (R&K, 1968) and scoring based on the new guidelines of the American Academy of Sleep Medicine (AASM, 2007).

Published
2009
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2. Is there a link between sleep changes and memory in Alzheimer's disease?

Author

Rauchs, Géraldine, Schabus, Manuel, Parapatics, Silvia, Bertran, Françoise, Clochon, Patrice, Hot, Pascal, Denise, Pierre, Desgranges, Béatrice, Eustache, Francis, Gruber, Georg, and Anderer, Peter

Abstract

Aging and Alzheimer's disease (AD) are both characterized by memory impairments and sleep changes. We investigated the potential link between these disturbances, focusing on sleep spindles, involved in memory consolidation. Two episodic memory tasks were given to young and old healthy participants, as well as to AD patients. Postlearning sleep was recorded. Sleep spindles were globally reduced in aging and AD. AD patients also exhibited a further decrease in fast spindles. Besides, mean intensity of fast spindles was positively correlated, in AD patients, with immediate recall performance. Our results are the first report of a specific decrease in fast spindles in AD, associated with learning abilities. They also give further hints for a functional differentiation between slow and fast spindles.

Published
2008
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