Change of epileptogenic threshold in neocortex and hippocampus during normal sleep-waking cycle
نویسندگان
چکیده
منابع مشابه
Communication between neocortex and hippocampus during sleep in rodents.
Both neocortical and hippocampal networks organize the firing patterns of their neurons by prominent oscillations during sleep, but the functional role of these rhythms is not well understood. Here, we show a robust correlation of neuronal discharges between the somatosensory cortex and hippocampus on both slow and fine time scales in the mouse and rat. Neuronal bursts in deep cortical layers, ...
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Jose L. Cantero,1 Mercedes Atienza,1 Robert Stickgold,1 Michael J. Kahana,2 Joseph R. Madsen,3 and Bernat Kocsis1 1Laboratory of Neurophysiology, Department of Psychiatry, Massachusetts Mental Health Center, Harvard Medical School, Boston, Massachusetts 02115, 2Volen Center for Complex Systems, Brandeis University, Waltham, Massachusetts 02454, and 3Department of Neurosurgery, Children’s Hospit...
متن کاملGamma EEG dynamics in neocortex and hippocampus during human wakefulness and sleep.
Little is known about the neurophysiological mechanisms underlying the human sleep-wake cycle. Using intracranial electrodes in humans, we investigated changes in topographic distribution of gamma power and local- and long-range gamma EEG coherence in neocortex and hippocampus during different cerebral states. We report significantly greater variability in gamma power across cortical regions du...
متن کاملOptic radiation activity during sleep and waking.
The activity recorded with coarse electrodes in the optic chiasma and the optic radiations of unanesthetised cats has been contrasted during waking and the two main phases of sleep. When the animals were awake in the light, the bursts of activity recorded in the region of the optic radiations followed closely the activity recorded from the optic nerve fibers. During sleep there were changes of ...
متن کاملActivity of dorsal raphe cells across the sleep-waking cycle and during cataplexy in narcoleptic dogs.
Cataplexy, a symptom associated with narcolepsy, represents a unique dissociation of behavioural states. During cataplectic attacks, awareness of the environment is maintained, as in waking, but muscle tone is lost, as in REM sleep. We have previously reported that, in the narcoleptic dog, noradrenergic cells of the locus coeruleus cease discharge during cataplexy. In the current study, we repo...
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ژورنال
عنوان ژورنال: Frontiers in Behavioral Neuroscience
سال: 2009
ISSN: 1662-5153
DOI: 10.3389/conf.neuro.08.2009.09.190