sleep terror disorder
Definition
Noun: A sleep terror disorder is a type of sleep disorder (parasomnia) characterized by episodes of extreme terror and panic during sleep. The individual may scream, thrash, or appear intensely frightened while partially awake from non-rapid eye movement (NREM) sleep, often with no detailed recall of a dream narrative upon fully waking.
Usage
This term is used in clinical, medical, and psychological contexts to diagnose and describe a specific condition. * The child was diagnosed with sleep terror disorder after frequent episodes of nighttime screaming. * Treatment for sleep terror disorder often focuses on improving sleep hygiene and reducing stress.
Advanced Usage
- Differential Diagnosis: In clinical practice, sleep terror disorder must be distinguished from nightmares, which occur during REM sleep and are usually vividly recalled.
- The key feature separating sleep terror disorder from a nightmare disorder is the stage of sleep in which the episode occurs.
Variants and Related Words
- Sleep Terror (noun): The individual episode itself, synonymous with "night terror."
- He experienced a sleep terror last night but had no memory of it in the morning.
- Night Terror (noun): A common synonym for an individual episode or the disorder.
- Night terrors are a hallmark of sleep terror disorder.
Synonyms
- Night Terror Disorder (noun)
- Pavor Nocturnus (noun, medical Latin)
Related Phrases
- Disorder of arousal: A broader category of NREM parasomnias that includes sleep terror disorder and sleepwalking.
- Sleepwalking and sleep terror disorder are both classified as disorders of arousal.
Noun
-
a disorder of sleep characterized by a dream of terrifying dimensions far worse than a typical nightmare; they occur during NREM sleep
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