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Updated: Aug 14, 2026
13:40
Examining Local Network Processing using Multi-contact Laminar Electrode Recording
Published on: September 8, 2011
Sequential discharges of phasic waves in the pontine oculomotor system during paradoxical sleep in chronic
Abstract:
The temporal organization of sequences of phasic activity (PGO) in the pontine oculomotor system during paradoxical sleep was compared in normal cats, in "mesencephalic" preparations, and in completely decorticated animals. After both types of operation, PGO discharges lost their random character, becoming grouped in bursts separated by long intervals. These observations suggest that the cerebral cortex is involved in the regulation of patterns of PGO sequences.
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01:24Sleep-Wake Cycles
Sleep is an essential physiological process vital to maintaining overall well-being. The reticular activating system (RAS), a network of neurons in the brainstem, regulates wakefulness and sleep. While it may seem passive, sleep consists of distinct cycles, each with its unique characteristics and functions. Two key sleep phases are non-rapid eye movement (NREM) and rapid eye movement (REM).
NREM Sleep
NREM sleep comprises four progressive stages that seamlessly merge:
NREM Sleep
NREM sleep comprises four progressive stages that seamlessly merge:
01:22Stages of Sleep
Sleep progresses through distinct stages, each characterized by specific brain wave patterns and physiological responses ranging from wakefulness to stages of non-rapid eye movement, known as non-REM, to rapid eye movement, referred to as REM. Understanding these stages helps in recognizing how sleep supports various bodily and cognitive functions.
Before sleep begins, in wakefulness, the brain exhibits primarily beta waves, which are high in frequency and low in amplitude, indicating alertness...
Before sleep begins, in wakefulness, the brain exhibits primarily beta waves, which are high in frequency and low in amplitude, indicating alertness...