The Sleep Slow Oscillation as a Traveling Wave
نویسندگان
چکیده
منابع مشابه
The sleep slow oscillation as a traveling wave.
During much of sleep, virtually all cortical neurons undergo a slow oscillation (<1 Hz) in membrane potential, cycling from a hyperpolarized state of silence to a depolarized state of intense firing. This slow oscillation is the fundamental cellular phenomenon that organizes other sleep rhythms such as spindles and slow waves. Using high-density electroencephalogram recordings in humans, we sho...
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It is well documented that sleep contributes to memory consolidation and it is also accepted that long-term synaptic plasticity plays a critical role in memory formation. The mechanisms of this sleep-dependent memory formation are unclear. Two main hypotheses are proposed. According to the first one, synapses are potentiated during wake; and during sleep they are scaled back to become available...
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Deep anesthesia is commonly used as a model of slow-wave sleep (SWS). Ketamine-xylazine anesthesia reproduces the main features of sleep slow oscillation: slow, large-amplitude waves in field potential, which are generated by the alternation of hyperpolarized and depolarized states of cortical neurons. However, direct quantitative comparison of field potential and membrane potential fluctuation...
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The slow-wave dispersive properties of a traveling-wave tube (TWT) changes considerably when either the helix is supported by a dielectric or the waveguide is filled with plasma. The dispersive properties of the dielectric-supported helix waveguide have been examined for different geometric parameters of the helix waveguide. The dispersion relation of the helix mode is found to be upshifted by ...
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ژورنال
عنوان ژورنال: Journal of Neuroscience
سال: 2004
ISSN: 0270-6474,1529-2401
DOI: 10.1523/jneurosci.1318-04.2004