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University of Southern Mississippi

Expanding the Fear of Loss of Vigilance Theory: Using Intolerance of Uncertainty, Responsibility for Harm, and Fear of Sleep to Predict Nocturnal Panic Attacks

Abstract

dc:description.abstract

<p>Nocturnal panic involves experiencing panic attacks out of a sleeping state without obvious causes such as nightmares or loud noises. Roughly half of patients with panic disorder will experience nocturnal panic in addition to panic attacks while awake, or daytime panic. Like daytime panic, nocturnal panic also occurs in other disorders such as PTSD. The Fear of Loss of Vigilance theory is currently the only model available to explain nocturnal panic. It suggests that nocturnal panickers fear states in which they cannot easily react to or protect themselves from danger. Prior research using a self-report measure to differentiate nocturnal and daytime panickers has been unsuccessful. The current study sought to expand upon the existing theory by including constructs from the broader anxiety literature such as fear of sleep, intolerance of uncertainty, and responsibility for harm. Nocturnal panickers were expected to report higher scores on these measures when compared to daytime panickers and those without panic attacks. A sample of undergraduates (Nocturnal Panic <em>N </em>= 52; Daytime Panic <em>N </em>= 56; Without Panic <em>N </em>= 58) completed self-report measures about panic attacks, fear of sleep, intolerance of uncertainty, responsibility for harm, and fear of loss of vigilance. Measures of fear of sleep and responsibility for harm successfully differentiated nocturnal from daytime panickers, whereas measures of intolerance of uncertainty and fear of loss of vigilance did not. These results provide partial support for the Fear of Loss of Vigilance theory. Modifications to the theory to incorporate additional constructs are suggested.</p>

Degree

thesis:*
Name thesis:degree_name
Master of Arts (MA)
Level thesis:degree_level
Masters Thesis
Year dc:date.available
2019

Author and committee

dc:creator, dc:contributor.*
Author dc:creator
  • Smith, Nicole S.
Contributors dc:contributor
  • Daniel W. Capron
  • Joye C. Anestis
  • Michael D. Anestis

Subjects

dc:subject × 5

Identifiers

dc:identifier.*
Repository record dc:identifier
https://aquila.usm.edu/masters_theses/711
OAI identifier oai:identifier
oai:aquila.usm.edu:masters_theses-1738

Chain of custody

source
Harvested from
University of Southern Mississippi
Base URL
aquila.usm.edu/do/oai/
Last updated
2026-07-24
Source record
OAI-PMH GetRecord
citation

Smith, Nicole S.. Expanding the Fear of Loss of Vigilance Theory: Using Intolerance of Uncertainty, Responsibility for Harm, and Fear of Sleep to Predict Nocturnal Panic Attacks. Masters Thesis thesis, 2019. https://aquila.usm.edu/masters_theses/711