[Dynamics of the neuronal activity of the amygdaloid complex of the rat brain in the sleep-wakefulness cycle].
In freely moving rats the dynamics of neuronal activity of the amygdaloid complex was studied during the sleep-wakefulness cycle. It has been shown that the majority of neurons in the dorsomedial part of the complex discharge with high frequencies during active wakefulness (80%) and paradoxical sleep (66.7%) as compared with slow wave sleep. The neuronal activity of the basolateral part of the complex during the sleep-wakefulness cycle is more diverse: most of the neurons (84.6%) are activated during wakefulness, while only 38.4% of neurons are activated during parodoxical sleep. Some neurons show higher frequency during slow-wave sleep discharges. The above-mentioned findings show that the neuronal activity of the dorsomedial and basolateral amygdaloid complex differs in the sleep-wakefulness cycle. It is suggested that this complex must play an important role in the regulation of motivational processes, while it is not involved in the basic mechanisms of the sleep-wakefulness cycle.
D000679:Amygdala / Q000502:physiology*; D000818:Animals; D001931:Brain Mapping; D004558:Electric Stimulation; D004644:Emotions / Q000502:physiology; D008297:Male; D009042:Motivation / Q000502:physiology; D051381:Rats; D012890:Sleep / Q000502:physiology*; D012894:Sleep Stages / Q000502:physiology
Dinamika neĭronnoĭ aktivnosti mindalevidnogo kompleksa mozga krysy v tsikle bodrstvovanie--son.