Selective coupling between theta phase and neocortical fast gamma oscillations during REM-sleep in mice
Background The mammalian brain expresses a wide range of state-dependent network oscillations which vary in frequency and spatial extension. Such rhythms can entrain multiple neurons into coherent patterns of activity, consistent with a role in behaviour, cognition and memory formation. Recent evide...
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| Main Authors: | , , |
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| Format: | Article (Journal) |
| Language: | English |
| Published: |
December 5, 2011
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| In: |
PLOS ONE
Year: 2011, Volume: 6, Issue: 12, Pages: 1-9 |
| ISSN: | 1932-6203 |
| DOI: | 10.1371/journal.pone.0028489 |
| Online Access: | Verlag, kostenfrei, Volltext: https://doi.org/10.1371/journal.pone.0028489 Verlag, kostenfrei, Volltext: https://journals.plos.org/plosone/article?id=10.1371/journal.pone.0028489 Verlag, kostenfrei, Volltext: http://www.plosone.org/article/info%3Adoi%2F10.1371%2Fjournal.pone.0028489 
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| Author Notes: | Claudia Scheffzük, Valeriy I. Kukushka, Alexei L. Vyssotski, Andreas Draguhn, Adriano B.L. Tort, Jurij Brankačk |
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| 245 | 1 | 0 | |a Selective coupling between theta phase and neocortical fast gamma oscillations during REM-sleep in mice |c Claudia Scheffzük, Valeriy I. Kukushka, Alexei L. Vyssotski, Andreas Draguhn, Adriano B.L. Tort, Jurij Brankačk |
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| 520 | |a Background The mammalian brain expresses a wide range of state-dependent network oscillations which vary in frequency and spatial extension. Such rhythms can entrain multiple neurons into coherent patterns of activity, consistent with a role in behaviour, cognition and memory formation. Recent evidence suggests that locally generated fast network oscillations can be systematically aligned to long-range slow oscillations. It is likely that such cross-frequency coupling supports specific tasks including behavioural choice and working memory. Principal Findings We analyzed temporal coupling between high-frequency oscillations and EEG theta activity (4-12 Hz) in recordings from mouse parietal neocortex. Theta was exclusively present during active wakefulness and REM-sleep. Fast oscillations occurred in two separate frequency bands: gamma (40-100 Hz) and fast gamma (120-160 Hz). Theta, gamma and fast gamma were more prominent during active wakefulness as compared to REM-sleep. Coupling between theta and the two types of fast oscillations, however, was more pronounced during REM-sleep. This state-dependent cross-frequency coupling was particularly strong for theta-fast gamma interaction which increased 9-fold during REM as compared to active wakefulness. Theta-gamma coupling increased only by 1.5-fold. Significance State-dependent cross-frequency-coupling provides a new functional characteristic of REM-sleep and establishes a unique property of neocortical fast gamma oscillations. Interactions between defined patterns of slow and fast network oscillations may serve selective functions in sleep-dependent information processing. | ||
| 650 | 4 | |a Animal behavior | |
| 650 | 4 | |a Electroencephalography | |
| 650 | 4 | |a Gamma spectrometry | |
| 650 | 4 | |a Hippocampus | |
| 650 | 4 | |a Mice | |
| 650 | 4 | |a Neocortex | |
| 650 | 4 | |a Parietal lobe | |
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| 700 | 1 | |a Brankačk, Jurij |d 1952- |e VerfasserIn |0 (DE-588)1059176319 |0 (DE-627)798125349 |0 (DE-576)415192439 |4 aut | |
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