Related Experiment Video
Updated: Jul 14, 2026

08:20
Measuring Neural Mechanisms Underlying Sleep-Dependent Memory Consolidation During Naps in Early Childhood
Published on: October 2, 2019
[Sleep behavior in children with tic disorders--a polysomnographic study].
Roumen Kirov1, Veit Roessner, Henrik Uebel
1Abteilung für Kinder- und Jugendpsychiatrie/Psychothera pie, Universität Göttingen.
Summary
Children with chronic tic disorder (TD) have poorer sleep quality and more movement-related arousals. Increased nighttime movements correlate with daytime tic severity, suggesting sleep impairment may worsen TD symptoms.
Area of Science:
- Neuroscience
- Sleep Medicine
- Pediatric Neurology
Context:
- Chronic tic disorder (TD) affects children, impacting daily functioning.
- Sleep disturbances are frequently reported in pediatric populations with TD.
- The relationship between sleep patterns and tic severity requires further elucidation.
Purpose:
- To characterize sleep patterns in children with chronic tic disorder (TD).
- To investigate the association between sleep disturbances, movement-related arousals, and tic severity in children with TD.
Summary:
- Polysomnography revealed reduced sleep quality and increased movement-related arousals in unmedicated children with TD compared to healthy controls.
- More frequent arousals during sleep correlated with increased daytime tic severity.
- Lower sleep efficiency and longer slow-wave sleep latency were linked to greater tic severity.
Impact:
- Findings suggest a bidirectional relationship between sleep impairment and tic severity in children with TD.
- Understanding these sleep-TD connections may inform therapeutic strategies for managing tic symptoms.
More Related Videos
Related Concept Videos
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...
RBD is significantly associated with...
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...
Nightmares often...
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:
NREM Sleep
NREM sleep comprises four progressive stages that seamlessly merge:
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.
Substance Use Disorders Affecting Sleep
Substance use disorders involve a pattern of using drugs more extensively than intended and continuing use despite harmful consequences. This includes legal substances like alcohol and nicotine, as well as illegal drugs. These disorders often involve both physical and psychological dependence, reflecting compulsive use of substances that significantly alter thoughts, feelings, and behaviors, contributing to a major public health issue.
Understanding the concepts of physical dependence,...
Understanding the concepts of physical dependence,...
Sleepwalking and Sleep Talking
Somnambulism, commonly known as sleepwalking, involves individuals engaging in activities ranging from simple walking to more complex behaviors such as driving. Sleepwalking typically occurs during the slow-wave sleep stages 3 and 4 early in the night when the person is not dreaming, contradicting the myth that sleepwalkers are acting out their dreams.
Factors that increase the likelihood of sleepwalking include sleep deprivation and alcohol consumption. Contrary to common beliefs, it is safe...
Factors that increase the likelihood of sleepwalking include sleep deprivation and alcohol consumption. Contrary to common beliefs, it is safe...

