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

  • Chellappa SL Centre for Chronobiology, Psychiatric Hospital of the University of Basel, Wilhelm, Kleinstrasse 27, CH-4025 Basel, Switzerland. Sarah.Chellappa@upkbs.ch
  • Frey S
  • Knoblauch V
  • Cajochen C
  • 2011-03-23
Published in:
  • Biological psychology. - 2011
Adult
Alpha Rhythm
Cerebral Cortex
Dreams
Electroencephalography
Female
Humans
Male
Melatonin
Mental Recall
Polysomnography
Saliva
Sleep
Sleep Stages
Sleep, REM
Theta Rhythm
Young Adult
English 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.
Language
  • English
Open access status
green
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Persistent URL
https://sonar.ch/global/documents/143209
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