Marquis et al (2017)

REM Sleep Theta Changes in Frequent Nightmare Recallers
SLEEP, August, 2017
Louis-Philippe Marquis; Tyna Paquette; Cloé Blanchette-Carrière; Gaëlle Dumel; Tore Nielsen

Study Objectives: To replicate and expand upon past research by evaluating sleep and wake electroencephalographic spectral activity in samples of frequent nightmare (NM) recallers and healthy controls.
Methods: Computation of spectral activity for sleep (non-REM and REM) and wake electroencephalogram recordings from 18 frequent NM recallers and 15 control participants.
Results: There was higher “slow-theta” (2–5 Hz) for NM recallers than for controls during wake, non-REM sleep and REM sleep. Differences were clearest for frontal and central derivations and for REM sleep cycles 2-4. There was also higher beta activity during NREM sleep for NM recallers. Findings partially replicate past research by demonstrating higher relative “slow-theta” (3-4Hz) for NM recallers than for controls.
Conclusions: Findings are consistent with a neurocognitive model of nightmares that stipulates cross-state anomalies in emotion processing in NM-prone individuals.

Marquis-2017-REM sleep theta changes in freque.pdf

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http://www.nature.com/articles/s41598-017-06389-4

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Why are so many babies born around 8:00 A.M.? View the full graphic:

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2017-07-22, 2:00 PM Why are so many babies born around 8:00 A.M.? View the full graphic: bit.ly/2tyF0Dn pic.twitter.com/8fOioLavJS

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Electrophysiological evidence that the retrosplenial cortex displays a strong and specific activation phased with hippocampal theta during paradoxical (REM) sleep | Journal of Neuroscience

http://www.jneurosci.org/content/early/2017/07/20/JNEUROSCI.0026-17.2017

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Neural reactivations during sleep determine network credit assignment : Nature Neuroscience : Nature Research

https://www.nature.com/neuro/journal/vaop/ncurrent/full/nn.4601.html#methods