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EEG Mu Rhythm in Typical and Atypical Development
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EEG Mu Rhythm in Typical and Atypical Development

Published on: April 9, 2014

Rhythmic movement disorder and cyclic alternating pattern during sleep: a video-polysomnographic study in a

Raffaele Manni1, Michele Terzaghi, Ivana Sartori

  • 1Unit of Sleep Medicine and Epilepsy, IRCCS C. Mondino Institute of Neurology, Pavia, Italy. raffaele.manni@mondino.it

Movement Disorders : Official Journal of the Movement Disorder Society
|September 25, 2004
PubMed

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REM Sleep Behavior Disorder

REM Sleep Behavior Disorder (RBD) is a sleep disorder characterized by the absence of muscle paralysis that normally occurs during the REM phase of sleep. This absence allows individuals to physically act out their dreams, which are often vivid and disturbing. Common behaviors exhibited during episodes include kicking, punching, and yelling. These actions can be dangerous, potentially leading to injuries for the person with RBD or their bed partner.
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Sleep-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).
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Rigidity and myotonia are distinct abnormalities of muscle tone that affect resistance and relaxation during movement. Although both involve altered muscle contraction, they arise from different neurological and muscular mechanisms.CharacteristicsRigidity is characterized by uniform resistance to passive movement across the entire range, independent of speed, affecting flexors and extensors equally. It may appear as lead-pipe rigidity (smooth, constant resistance) or cogwheel rigidity...