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Related Concept Videos

Alterations in Muscle Tone lll01:11

Alterations in Muscle Tone lll

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...
Alterations in Muscle Tone ll01:12

Alterations in Muscle Tone ll

Alterations in muscle tone are common manifestations of neurological disorders and reflect dysfunction within different nervous system regions. Spasticity, paratonia, and dystonia represent distinct forms of hypertonia, each with unique mechanisms, clinical features, and diagnostic importance.CharacteristicsSpasticity happens from upper motor neuron lesions and is characterized by velocity-dependent resistance to passive movement. Clinical features include:Exaggerated deep tendon reflexesClonus...
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...
Disorders of the Skeletal Muscle01:28

Disorders of the Skeletal Muscle

The clinical conditions affecting the skeletal muscle tissue are broadly categorized as musculoskeletal and neuromuscular disorders.
Musculoskeletal disorders
Musculoskeletal disorders involve injuries and conditions affecting the skeletal muscles and associated connective tissues. These disorders can arise from acute biomechanical stresses or chronic overuse and can occur across different age groups. Common injuries include sprains, fractures, and muscular strains, often resulting from...
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...

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Related Experiment Video

Updated: Jun 22, 2026

Handwriting Analysis Indicates Spontaneous Dyskinesias in Neuroleptic Naïve Adolescents at High Risk for Psychosis
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Tremor in childhood.

Stephanie Keller1, Leon S Dure

  • 1Department of Pediatrics, Division of Child Neurology, University of Alabama at Birmingham, The Children's Hospital of Alabama, Birmingham, AL 35233, USA. skeller@peds.uab.edu

Seminars in Pediatric Neurology
|June 9, 2009
PubMed
Summary
This summary is machine-generated.

Childhood tremor is underrecognized, with diverse causes. Understanding tremor mechanisms in children is key to better diagnosis and age-appropriate treatments.

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Area of Science:

  • Pediatric Neurology
  • Neuroscience
  • Movement Disorders

Background:

  • Childhood tremor is infrequently documented but likely underappreciated.
  • The causes of tremor in children are varied, ranging from isolated findings to symptoms of systemic or neurological disorders.

Purpose of the Study:

  • To provide an overview of tremor-causing mechanisms, focusing on neuroanatomy and neurophysiology in pediatric patients.
  • To discuss tremor classification, diagnostic considerations, and treatment strategies for children.

Main Methods:

  • Literature review and synthesis of existing research on childhood tremor.
  • Discussion of neuroanatomical and neurophysiological underpinnings of tremor.

Main Results:

  • Childhood tremor etiology is diverse and requires comprehensive evaluation.
  • Understanding tremor pathophysiology is crucial for developing effective treatments.

Conclusions:

  • Improved recognition and characterization of childhood tremors are needed.
  • Enhanced understanding will lead to more appropriate age-specific treatment strategies for pediatric tremor.