Send to

Choose Destination
Zh Vyssh Nerv Deiat Im I P Pavlova. 2002 Sep-Oct;52(5):592-601.

[Dynamics of neuronal activity in the lateral preoptic area of hypothalamus in the course of sleep-waking cycle].

[Article in Russian]

Author information

Kogan Research Institute for Neurocybernetics, Rostov State University.


Frequency and patterns of activity of 106 neurons in the lateral preoptic area of unanesthetized cats were studied under conditions of indolent head fixation. It was shown that this structure contains two somnogenic neuronal populations with different functions. Neurons increasing their discharge frequency during transition from active to quiet wakefulness and subsequent sleep development to the point of phasic stage of paradoxical sleep development are considered as elements of an anti-waking system, which is involved in the mechanisms of sleep onset and deepening by means of inactivation of the arousal system. Neurons displaying the highest firing rates during light slow-wave sleep and synchronization of discharges with sleep spindles are considered as elements of a slow-wave sleep network.

[Indexed for MEDLINE]

Supplemental Content

Loading ...
Support Center