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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.Expand
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Breakdown of Cortical Effective Connectivity During Sleep
When we fall asleep, consciousness fades yet the brain remains active. Why is this so? To investigate whether changes in cortical information transmission play a role, we used transcranial magneticExpand
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Local sleep and learning
Human sleep is a global state whose functions remain unclear. During much of sleep, cortical neurons undergo slow oscillations in membrane potential, which appear in electroencephalograms as slowExpand
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Arm immobilization causes cortical plastic changes and locally decreases sleep slow wave activity
Sleep slow wave activity (SWA) is thought to reflect sleep need, increasing after wakefulness and decreasing after sleep. We showed recently that a learning task involving a circumscribed brainExpand
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Electromagnetic fields, such as those from mobile phones, alter regional cerebral blood flow and sleep and waking EEG.
Usage of mobile phones is rapidly increasing, but there is limited data on the possible effects of electromagnetic field (EMF) exposure on brain physiology. We investigated the effect of EMF vs. shamExpand
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Source modeling sleep slow waves
Slow waves are the most prominent electroencephalographic (EEG) feature of sleep. These waves arise from the synchronization of slow oscillations in the membrane potentials of millions of neurons.Expand
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Reduced sleep spindle activity in schizophrenia patients.
OBJECTIVE High-density EEG during sleep represents a powerful new tool to reveal potential abnormalities in rhythm-generating mechanisms while avoiding confounding factors associated with wakingExpand
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Sleep homeostasis and cortical synchronization: III. A high-density EEG study of sleep slow waves in humans.
STUDY OBJECTIVES The mechanisms responsible for the homeostatic decrease of slow-wave activity (SWA, defined in this study as electroencephalogram [EEG] power between 0.5 and 4.0 Hz) during sleep areExpand
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Mapping of Cortical Activity in the First Two Decades of Life: A High-Density Sleep Electroencephalogram Study
Evidence that electroencephalography (EEG) slow-wave activity (SWA) (EEG spectral power in the 1–4.5 Hz band) during non-rapid eye movement sleep (NREM) reflects plastic changes is increasing (TononiExpand
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Pulsed high-frequency electromagnetic field affects human sleep and sleep electroencephalogram
To investigate whether the electromagnetic field (EMF) emitted by digital radiotelephone handsets affects the brain, healthy, young subjects were exposed during an entire night-time sleep episode toExpand
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