Theta wave amplitude and frequency are differentially correlated with pontine waves and rapid eye movements during REM sleep in rats
Abstract
The present study examined the correlations between the dynamics of hippocampal theta waves and pontine waves (P waves) and rapid eye movements (REMs) densities during REM sleep. Theta wave peak frequency and theta amplitude were estimated as the parameters of theta wave dynamics in each 3s segment. The peak frequency and theta amplitude were positively correlated with P wave and REMs densities, however their detailed correlation properties were distinct from each other. Dependency of peak frequency on P wave/REMs density did not change significantly from that on REMs/P wave density. On the other hand, dependency of the theta amplitude on P wave/REMs density significantly increased with an increased REMs/P wave density. Because hippocampal theta waves and P waves are involved in learning and memory functions during REM sleep, the correlation between theta parameters and P wave density might help to clarify these functions.
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Theta activity, i.e., periods of synchronized activity in the 4-8 Hz frequency band, is a hallmark of tonic REM sleep and correlates with rapid eye movements and PGO waves.
“Theta activity, i.e., periods of synchronized activity in the 4 -8 Hz frequency band, is a hallmark of tonic REM sleep (REM sleep without actual rapid eye movements) (161) and correlates with rapid eye movements and PGO waves (618 -620).”
From About Sleep's Role in Memory (2013) · cites this paper as [619]
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- Authors
- Karashima, A., Nakao, M., Honda, K., Iwasaki, N., Katayama, N., & Yamamoto, M.
- Affiliations
- Tohoku University (JP)
- Tokyo Medical and Dental University (JP)
- Corresponding author
- Karashima, Akihiro
- Venue
- Neuroscience Research
- Publisher
- Elsevier BV
- Published
- 2004-11
- Volume
- 50
- Issue
- 3
- Pages
- 283-289
- ISSN
- 0168-0102 (ISSN-L)
- OpenAlex
- W1966272265
- Cited by
- 44
- References
- 45
- Citations by year
- 2025: 4 · 2023: 5 · 2022: 1 · 2021: 2 · 2020: 5 · 2019: 1 · 2018: 1 · 2017: 2 · 2015: 1 · 2014: 1 · 2013: 2 · 2012: 1
- FWCI
- 1.51
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- Neuroscience Research (publishedVersion)
- PubMed (publishedVersion)
- Funders
- Ministry of Education, Culture, Sports, Science and Technology
- Topics
- Life Sciences › Neuroscience › Cognitive Neuroscience › Sleep and Wakefulness Research
- Life Sciences › Neuroscience › Cognitive Neuroscience › Neural dynamics and brain function
- Life Sciences › Neuroscience › Cognitive Neuroscience › Memory and Neural Mechanisms
- Keywords
- rapid eye movements, REM sleep, sleep dynamics, learning and memory, rats
- MeSH terms
- Animals, Cerebellum, Pons, Sleep, REM, Theta Rhythm, Rats, Sprague-Dawley, Rats
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