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Imagery rehearsal for posttraumatic nightmares: A randomized controlled trial

Joan M. Cook, Gerlinde C. Harb, Philip Gehrman, Mark S. Cary, Geraldine M. Gamble, David Forbes, Richard J Ross

Journal of Traumatic Stress October 1, 2010 DOI: 10.1002/jts.20569 (opens in new tab)

Study at a glance

AI-extracted from the abstract
Characteristics Randomized controlled trial Peer reviewed
Sample size 124
Population Male Vietnam War veterans with chronic, severe PTSD
Intervention Imagery rehearsal
Topics Dreaming
Key findings Imagery rehearsal did not significantly outperform an active comparison condition on nightmare frequency, sleep quality, or PTSD symptoms in veterans with chronic, severe PTSD; both groups improved over time but nightmare frequency did not change.

Abstract

AbstractOne hundred twenty‐four male Vietnam War veterans with chronic, severe posttraumatic stress disorder (PTSD) were randomly assigned to imagery rehearsal (n = 61) or a credible active comparison condition (n = 63) for the treatment of combat‐related nightmares. There was pre‐post change in overall sleep quality and PTSD symptoms for both groups, but not in nightmare frequency. Intent‐to‐treat analyses showed that veterans who received imagery rehearsal had not improved significantly more than veterans in the comparison condition for the primary outcomes (nightmare frequency and sleep quality), or for a number of secondary outcomes, including PTSD. Six sessions of imagery rehearsal delivered in group format did not produce substantive improvement in Vietnam War veterans with chronic, severe PTSD. Possible explanations for findings are discussed.

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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