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Telephone-guided imagery rehearsal therapy for nightmares: Efficacy and mediator of change.

Jaap Lancee, Marieke Effting, Anna E Kunze

Journal of Sleep Research June 1, 2021 DOI: 10.1111/jsr.13123 (opens in new tab)

Study at a glance

AI-extracted from the abstract
Characteristics Randomized controlled trial Peer reviewed
Sample size 70
Population Adults with nightmares according to DSM-5
Intervention Imagery rehearsal therapy
Duration 3 sessions over 5 weeks, with 3- and 6-month follow-up
Topics Dreaming
Keywords Imagery rehearsal treatment Mastery Nightmares Self-help
Key findings Telephone-guided imagery rehearsal therapy significantly reduced nightmare frequency, nightmare distress, and insomnia severity compared to a wait-list condition, with effects sustained at 3- and 6-month follow-up.

Abstract

The currently best-supported psychological treatment for nightmares is imagery rehearsal therapy. The problem, however, is that not enough trained practitioners are available to offer this treatment. A possible solution is to conduct imagery rehearsal therapy in a guided self-help format. In the current study, 70 participants with nightmares according to the fifth edition of the Diagnostic and Statistical Manual of Mental Disorders were randomized to either telephone-guided imagery rehearsal therapy (n = 36) or a wait-list condition (n = 34). Participants in the imagery rehearsal therapy condition received three sessions over the course of 5 weeks. Every treatment session was followed by telephone support delivered by postgraduate students. Participants who received imagery rehearsal therapy showed larger improvements on nightmare frequency (d = 1.03; p < .05), nightmare distress (d = 0.75; p < .05) and insomnia severity (d = 1.12; p < .001) compared with the participants in the wait-list condition. The effects were sustained at 3- and 6-month follow-up. No significant effects were observed on the number of nights with nightmares per week, anxiety and depression. In line with earlier reports, the treatment effect was mediated by the increase of mastery at mid-treatment, underlining the mechanistic value of mastery in imagery rehearsal therapy. The present study demonstrates that it is possible to deliver imagery rehearsal therapy in a self-help format supported by unexperienced therapists and with relatively little time investment. This opens possibilities in terms of cost-effectiveness, scalability and dissemination of imagery rehearsal therapy in the treatment of nightmares.

Comparable studies

Other randomized controlled trials on dreaming, most cited first.

Study Year Design Participants
Efficacy of a Cognitive‐Behavioral Treatment for Insomnia and Nightmares in Afghanistan and Iraq Veterans With PTSD Combat veterans of Operation Enduring Freedom and/or Operation Iraqi Freedom (mean age... 2013 Randomized controlled trial n = 40
Lucid Dreaming Treatment for Nightmares: A Pilot Study Chronic nightmare sufferers 2006 Randomized controlled trial n = 23
Testing the involvement of the prefrontal cortex in lucid dreaming: A tDCS study Participants spending three consecutive nights in a sleep laboratory 2013 Randomized controlled trial n = 19
Pre-sleep treatment with galantamine stimulates lucid dreaming: A double-blind, placebo-controlled, crossover study Adults with high dream recall and an interest in lucid dreaming 2018 Randomized crossover trial n = 121
Studies with lucid dreaming as add-on therapy to Gestalt therapy Adults with nightmares (ICD-10: F51.5) at least twice a week 2015 Randomized controlled trial n = 32

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