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Autonomic Hyperarousal and Chronotype as Psychobiological Correlates of Nightmare-Relevant Dispositions

William E. Kelly

Individual Differences Research December 1, 2024 DOI: 10.65030/idr.22006 (opens in new tab)

Study at a glance

AI-extracted from the abstract
Characteristics Observational study Peer reviewed
Sample size 110
Population Undergraduate participants
Topics Dreaming
Citations 2
Key findings Self-reported autonomic hyperarousal correlated with nightmare proneness, concretization, and nightmares, and uniquely predicted nightmare proneness and concretization after accounting for gender and neuroticism. Chronotype showed modest associations but no unique effects. Nightmare proneness was the only independent predictor of nightmares.

Abstract

Nightmare vulnerability appears influenced by both dispositional and psychobiological factors, yet these are rarely examined together. This study tested whether autonomic hyperarousal and chronotype contribute to nightmare proneness, concretization, and distressing nightmares beyond neuroticism. Undergraduate participants (N = 110) completed measures of self-reported hyperarousal, chronotype, nightmare proneness, concretization, neuroticism, and nightmare frequency. Hyperarousal correlated with nightmare proneness, concretization, and nightmares, and uniquely predicted nightmare proneness and concretization after accounting for gender and neuroticism. Chronotype showed modest associations but no unique effects. Nightmare proneness was the only independent predictor of nightmares. Findings highlight autonomic hyperarousal as a broad correlate of nightmare-relevant dispositions, whereas chronotype played a weaker role in this sample.

Comparable studies

Other observational and cohort studies on dreaming, most cited first.

Study Year Design Participants
Lucid Dreaming: a State of Consciousness with Features of Both Waking and Non-Lucid Dreaming Student volunteers trained to become lucid and signal lucidity with horizontal eye... 2009 Observational study n = 6
Nightmare Prevalence, Nightmare Distress, and Self-Reported Psychological Disturbance Young adults with a mean age of 20 years 2002 Prospective observational study n = 116
Long-term effects of extreme situational stress on sleep and dreaming Survivors of traumatic events who complained of sleep disturbances, compared with... 1987 Case-control study n = 11
The relationship of nightmare frequency and nightmare distress to well‐being Adults who reported dreams 2004 Observational cohort n = 147
The prevalence of nightmares and their independence from anxiety. Undergraduates 1990 Observational study using daily dream logs n = 220

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