sleep spindle


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sleep spin·dle

the electroencephalographic record of 14-per-second bursts of wave frequency seen on EEG examination.

sleep spindle

Electroencephalographic waves with a frequency of 12 or 14 cycles per second that appear during sleep and may participate in sleep maintenance. They become less frequent with aging.
See also: spindle
References in periodicals archive ?
But until now, researchers had not considered sleep spindles as playing a role in emotional memory, focusing instead on rapid eye movement (REM) sleep.
Using two commonly prescribed sleep aids - zolpidem and sodium oxybate (Xyrem) - Mednick, Kaestner and Wixted were able to tease apart the effects of sleep spindles and rapid eye movement (REM) sleep on the recall of emotional memories.
Using two commonly prescribed sleep aids -- zolpidem and sodium oxybate (Xyrem) -- Mednick, Kaestner and Wixted were able to tease apart the effects of sleep spindles and rapid eye movement (REM) sleep on the recall of emotional memories.
Neuronal excitation may occur when auditory clicks are presented during the sleep spindles of stage II sleep during the ascent from SWS to REM sleep (Sleep Res.
During sleep, rTMS stimulation could again be provided during the slow waves of SWS, during the sleep spindles of stage II sleep (especially for the memory processing of motor procedural tasks), or during the sawtooth waves of REM sleep that typically occur just prior to the phasic bursts of rapid eye movements.
The researchers found that zolpidem significantly increased the density of sleep spindles and improved verbal memory consolidation.
The effect of sleep spindles was so pronounced that we could see it even after just a single night," he said.