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content:sleep_spindles [2020/03/04 13:17] – created icnacontent:sleep_spindles [2024/04/03 07:33] (current) biju.hameed@gmail.com
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 ====== Sleep spindles ====== ====== Sleep spindles ======
-Sleep spindles represent an oscillating electrical potential in the brain. They have a characteristic frequency of 11–16 Hz (usually 12–14 Hz in healthy adults) and last from one to several seconds in duration[(:cite:17557422>{{pubmed>17557422}})]. On scalp electroencephalography (EEG), spindles are seen as sinusoidal waves that often have a fusiform or “crescendo-decrescendo” morphology[(:cite:14573378>{{pubmed>14573378}})].+Sleep spindles represent an oscillating electrical potential in the brain. They have a characteristic frequency of 11–16 Hz (usually 12–14 Hz in healthy adults) and last from one to several seconds in duration[(:cite:17557422>{{pmid>long:17557422}})]. On scalp electroencephalography (EEG), spindles are seen as sinusoidal waves that often have a fusiform or “crescendo-decrescendo” morphology[(:cite:14573378>{{pmid>long:14573378}})]. See {{ref>sleepspindles}}. 
 +<figure center blank|sleepspindles> 
 +{{sleepspindles.png}} 
 +<figcaption>.Sleep spindles in a 3-month-old infant.Note well-developed sleep spindles in this 30-sec epoch from a PSG recorded on a 3-month-old infant. Sleep spindles between 3-4 months of age often last 
 +5-8 sec and are maximal over Cz. Sensitivity 500 µV peak-to-peak, LFF 0.3 Hz, HFF 35 Hz.[(:cite:pmid22701392>{{pmid>long:22701392}})]</figcaption> 
 +</figure>
 ===== References ===== ===== References =====
 ~~REFNOTES~~ ~~REFNOTES~~
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