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[Arousal and its influence on vigilance].

J Espinar-Sierra1

  • 1Unidad de Sueño, Hospital Clínico San Carlos, Madrid, España.

Revista De Neurologia
|March 14, 2000
PubMed
Summary

Disorders of arousal impact sleep and daytime vigilance. Nocturnal arousal causes daytime sleepiness, while diurnal hyperarousal leads to insomnia, affecting sleep quality.

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Area of Science:

  • Neuroscience
  • Sleep Medicine

Context:

  • The term 'arousal' encompasses transient nocturnal awakenings and sustained daytime vigilance.
  • Understanding arousal is crucial for diagnosing sleep disorders.

Purpose:

  • To review the diverse meanings and clinical implications of arousal disorders.
  • To clarify the relationship between arousal states and common sleep disturbances.

Summary:

  • This review examines 'arousal' in sleep medicine, linking insomnia (hyperarousal) and parasomnias (partial arousal) to arousal dysregulation.
  • Diurnal hyperarousal is associated with difficulty initiating and maintaining sleep.
  • Nocturnal arousal contributes to daytime somnolence due to disrupted nighttime sleep.

Impact:

  • Provides a framework for understanding the pathophysiology of insomnia and parasomnias.
  • Highlights the distinct clinical consequences of diurnal versus nocturnal arousal disturbances.
  • Informs diagnostic criteria and potential therapeutic targets for arousal-related sleep disorders.

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