Cyclical alternating pattern
Cyclical Alternating Pattern
The Cyclical Alternating Pattern (pronunciation: sik-lik-al awl-ter-nay-ting pat-ern) is a term used in sleep medicine to describe a periodic EEG activity occurring during NREM sleep.
Etymology
The term "Cyclical Alternating Pattern" is derived from the cyclical nature of the phenomenon where it alternates between different phases.
Definition
The Cyclical Alternating Pattern (CAP) is a microstructure of sleep, characterized by a periodic EEG activity occurring during NREM sleep. It is composed of sequences of relatively short periods of arousal (Phase A) followed by a compensatory period (Phase B).
Related Terms
- EEG: A test that detects electrical activity in your brain using small, metal discs (electrodes) attached to your scalp.
- NREM Sleep: One of the two basic states of sleep. NREM sleep itself is composed of stages 1–3, each representing a deeper level of sleep.
- Arousal: A state of being awake or reactive to stimuli.
- Sleep Medicine: A medical specialty or subspecialty devoted to the diagnosis and therapy of sleep disturbances and disorders.
See Also
External links
- Medical encyclopedia article on Cyclical alternating pattern
- Wikipedia's article - Cyclical alternating pattern
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