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Cortical activation patterns herald successful dream recall after NREM and REM sleep

Chellappa, Sarah Laxhmi and Frey, Sylvia and Knoblauch, Vera and Cajochen, Christian. (2011) Cortical activation patterns herald successful dream recall after NREM and REM sleep. Biological psychology, Vol. 87, H. 2. pp. 251-256.

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Official URL: http://edoc.unibas.ch/dok/A6005412

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Abstract

Dreaming pertains to both REM and NREM sleep. However, frequency and regional specific differences in EEG activity remains controversial. We investigated NREM and REM sleep EEG power density associated with and without dream recall in 17 young subjects during a 40-h multiple nap protocol under constant routine conditions. NREM sleep was associated with lower EEG power density for dream recall in the delta range, particularly in frontal derivations, and in the spindle range in centro-parietal derivations. REM sleep was associated with low frontal alpha activity and with high alpha and beta activity in occipital derivations. Our data indicate that specific EEG frequency- and topography changes underlie differences between dream recall and no recall after both NREM and REM sleep awakening. This dual NREM-REM sleep modulation holds strong implications for the mechanistic understanding of this complex ongoing cognitive process.
Faculties and Departments:03 Faculty of Medicine > Bereich Psychiatrie (Klinik) > Erwachsenenpsychiatrie UPK > Klinische Stress- und Traumaforschung (Holsboer-Trachsler)
03 Faculty of Medicine > Departement Klinische Forschung > Bereich Psychiatrie (Klinik) > Erwachsenenpsychiatrie UPK > Klinische Stress- und Traumaforschung (Holsboer-Trachsler)
UniBasel Contributors:Cajochen, Christian
Item Type:Article, refereed
Article Subtype:Research Article
Bibsysno:Link to catalogue
Publisher:Elsevier
ISSN:0301-0511
Note:Publication type according to Uni Basel Research Database: Journal article
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Last Modified:13 Sep 2013 07:59
Deposited On:13 Sep 2013 07:49

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