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A novel slow (< 1 Hz) oscillation of neocortical neurons in vivo: depolarizing and hyperpolarizing components
A novel slow oscillation in intracellular recordings from cortical association areas 5 and 7, motor areas 4 and 6, and visual areas 17 and 18 of cats under various anesthetics is described and synchronous inhibitory periods in both neurons are demonstrated.
Thalamocortical oscillations in the sleeping and aroused brain.
Analysis of cortical and thalamic networks at many levels, from molecules to single neurons to large neuronal assemblies, with a variety of techniques, is beginning to yield insights into the mechanisms of the generation, modulation, and function of brain oscillations.
Intracellular analysis of relations between the slow (< 1 Hz) neocortical oscillation and other sleep rhythms of the electroencephalogram
The data indicate that the thalamus is not essentially implicated in the genesis of the slow rhythm, and through the contralateral thalamocortical systems and callosal projections, also transected the corpus callosum in thalamically lesioned animals, and still recorded theslow rhythm in cortical neurons.
Natural waking and sleep states: a view from inside neocortical neurons.
It is suggested that neocortical neurons are engaged in processing internally generated signals, in view of the high firing rates in the functionally disconnected state of slow-wave sleep.
Grouping of brain rhythms in corticothalamic systems
- M. Steriade
- 31 December 2006
The slow (< 1 Hz) oscillation in reticular thalamic and thalamocortical neurons: scenario of sleep rhythm generation in interacting thalamic and neocortical networks
A unified scenario of the genesis of the three major sleep rhythms: slow, delta, and spindle oscillations is proposed.
The functional states of the thalamus and the associated neuronal interplay.
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Corticothalamic resonance, states of vigilance and mentation
- M. Steriade
- 7 November 2000
Origin of slow cortical oscillations in deafferented cortical slabs.
- I. Timofeev, F. Grenier, M. Bazhenov, T. Sejnowski, M. Steriade
- BiologyCerebral Cortex
- 1 December 2000
An in vivo preparation has been developed to study the mechanisms underlying spontaneous sleep oscillations in anesthetized cats and an analytical model of the cortical network accurately predicted the scaling observed in simulations and from recordings in cortical slabs of increasing size.
Spatiotemporal Analysis of Local Field Potentials and Unit Discharges in Cat Cerebral Cortex during Natural Wake and Sleep States
The results show that natural SWS in cats is characterized by slow-wave complexes, synchronized over large cortical territories, interleaved with brief periods of fast oscillations, characterized by local synchrony, and of characteristics similar to that of the sustainedfast oscillations of activated states.