Changes: K-complex

Revision as of 21:10, 25 March 2015

Cognitive Psychology: Attention · Decision making · Learning · Judgement · Memory · Motivation · Perception · Reasoning · Thinking - Cognitive processes Cognition - Outline Index

A K-complex that occurs during stage 2 sleep. It consists of a brief high-voltage peak, usually greater than 100 HZ, and lasts for longer than 0.5 seconds. K-complexes occur randomly throughout stage 2 sleep. It is the response to echoic stimuli, but might also occur randomly during stage 2. Original research in the mid-1900s showed that K-complexes would arise when researchers would knock on the chamber of a sleeping subject.

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 [[Image:Stage2sleep.png|frame|right]]
-A '''K-complex''' is an [[Electroencephalography|EEG]] waveform that occurs during [[Sleep#Stages of sleep|stage 2 sleep]]. It consists of a brief high-voltage peak, usually greater than 100 &micro;V, and lasts for longer than 0.5 seconds. K-complexes occur randomly throughout stage 2 sleep, but may also occur in response to auditory stimuli.  It is the response to auditory stimuli that likely lead to the origin of the term '''K-complex'''.  Original research in the mid-1900s showed that K-complexes would arise when researchers would knock on the chamber of a sleeping subject.
+A '''K-complex''' that occurs during [[Sleep#Stages of sleep|stage 2 sleep]]. It consists of a brief high-voltage peak, usually greater than 100 HZ, and lasts for longer than 0.5 seconds. K-complexes occur randomly throughout stage 2 sleep. It is the response to echoic stimuli,  but might also occur randomly during stage 2. Original research in the mid-1900s showed that K-complexes would arise when researchers would knock on the chamber of a sleeping subject.
+{{enWP|K-complex}}
 [[Category:Sleep]]
 [[Category:Electroencephalography]]
-{{enWP|K-complex}}