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Related Concept Videos

REM Sleep Behavior Disorder01:15

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.
RBD is significantly associated with...
Sleep-Wake Cycles01:24

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).
NREM Sleep
NREM sleep comprises four progressive stages that seamlessly merge:
Stages of Sleep01:22

Stages of Sleep

Sleep progresses through distinct stages, each characterized by specific brain wave patterns and physiological responses ranging from wakefulness to stages of non-rapid eye movement, known as non-REM, to rapid eye movement, referred to as REM. Understanding these stages helps in recognizing how sleep supports various bodily and cognitive functions.
Before sleep begins, in wakefulness, the brain exhibits primarily beta waves, which are high in frequency and low in amplitude, indicating alertness...
Narcolepsy01:07

Narcolepsy

Narcolepsy is a chronic sleep disorder characterized by pervasive, uncontrolled sleepiness and other sleep disturbances. One of its hallmark symptoms is an abrupt transition to REM sleep upon falling asleep, which causes symptoms typically associated with this phase to occur unexpectedly during wakefulness. These include the following symptoms, which typically last from a minute or two to half an hour.
Restless Leg Syndrome and Night Terrors01:27

Restless Leg Syndrome and Night Terrors

Restless Leg Syndrome (RLS), also known as Willis-Ekbom disease, is a neurological disorder characterized by an uncontrollable urge to move the legs due to uncomfortable sensations. These sensations typically occur during periods of rest or inactivity, particularly when lying down or sitting, and can severely disrupt sleep.
The exact cause of RLS is not fully understood, but it is believed to involve dopamine, a neurotransmitter that helps regulate muscle movement. Imbalances in dopamine levels...
Nightmares and Night Terrors01:18

Nightmares and Night Terrors

Nightmares and night terrors represent two distinct types of sleep disturbances that differ in timing, characteristics, and the sleeper's recall of the event. Nightmares are vivid, disturbing dreams that usually awaken the sleeper from REM sleep, a stage of sleep where brain activity is high, and dreams are most frequent. Upon awakening, individuals often have detailed recollections of their nightmares, which can include themes of threats to survival, security, or self-esteem.
Nightmares often...

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Related Experiment Video

Updated: May 27, 2026

Multi-system Monitoring for Identification of Seizures, Arrhythmias and Apnea in Conscious Restrained Rabbits
10:25

Multi-system Monitoring for Identification of Seizures, Arrhythmias and Apnea in Conscious Restrained Rabbits

Published on: March 27, 2021

Rabbit syndrome: patchy disapperance in stage 1 nrem sleep.

B N Gangadhar1, C J John, S Chattergi

  • 1& Residents in Psychiatry, National Institute of Mental Health Neuro & Sciences, Bangalore 29.

Indian Journal of Psychiatry
|November 8, 2011
PubMed
Summary
This summary is machine-generated.

Rabbit Syndrome, a rare movement disorder, was investigated using sleep electroencephalography (EEG). The study observed a unique patchy disappearance of symptoms during Stage 1 NREM sleep, differing from previous findings.

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Multi-system Monitoring for Identification of Seizures, Arrhythmias and Apnea in Conscious Restrained Rabbits
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Quantifying Infra-slow Dynamics of Spectral Power and Heart Rate in Sleeping Mice

Published on: August 2, 2017

Area of Science:

  • Neurology
  • Sleep Medicine
  • Movement Disorders

Background:

  • Rabbit Syndrome is a rare condition characterized by a specific movement disorder.
  • Previous research on Rabbit Syndrome has not extensively detailed its presentation during sleep stages.
  • Differentiating Rabbit Syndrome from other hyperkinetic movement disorders, such as tardive dyskinesia, can be clinically challenging.

Purpose of the Study:

  • To present a case study of Rabbit Syndrome investigated with polysomnography.
  • To describe the specific electroencephalography (EEG) findings during sleep in a patient with Rabbit Syndrome.
  • To discuss the clinical features that differentiate Rabbit Syndrome from tardive dyskinesia.

Main Methods:

  • A detailed clinical case description of a patient fulfilling the criteria for Rabbit Syndrome.
  • Polysomnography including sleep electroencephalography (EEG) to monitor brain activity during sleep.
  • Clinical assessment and comparison with known movement disorders.

Main Results:

  • The investigation revealed a patchy disappearance of the characteristic movement disorder during Stage 1 Non-Rapid Eye Movement (NREM) sleep.
  • This finding contrasts with earlier reports on Rabbit Syndrome, suggesting potential variability in its nocturnal presentation.
  • Specific clinical features were identified to aid in distinguishing Rabbit Syndrome from tardive dyskinesia.

Conclusions:

  • Sleep EEG can provide valuable insights into the pathophysiology of Rabbit Syndrome.
  • The observation of symptom fluctuation during specific sleep stages highlights the complexity of this movement disorder.
  • Clear differentiation from tardive dyskinesia is crucial for accurate diagnosis and management of Rabbit Syndrome.