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Linguistic and affective characteristics of script-driven imagery for adults with posttraumatic stress order: Associations with clinical outcomes during deep transcranial magnetic stimulation.

Abstract
Brief exposure to traumatic memories using script-driven imagery (SDI) has been proposed as a promising treatment for posttraumatic stress disorder (PTSD). This study investigated the effect of SDI plus active versus sham deep transcranial magnetic stimulation (TMS) in a secondary analysis of a randomized controlled trial for adults with PTSD (N = 134). Linguistic features of scripts and self-reported distress during a 12-session deep TMS treatment protocol were examined as they related to (a) baseline PTSD symptom severity, (b) trauma characteristics, and (c) treatment outcomes. Linguistic Inquiry and Word Count (LIWC) software was used to analyze the following linguistic features of SDIs: negative emotion, authenticity, and cognitive processing. More use of negative emotion words was associated with less severe self-reported and clinician-rated baseline PTSD symptom severity, r = -.18, p = .038. LIWC features did not differ based on index trauma type, range: F(3, 125) = 0.29-0.49, ps = .688-.831. Between-session reductions in self-reported distress across SDI trials predicted PTSD symptom improvement across both conditions at 5-week, B = -15.68, p = .010, and 9-week endpoints, B = -16.38, p = .011. Initial self-reported distress and linguistic features were not associated with treatment outcomes. The findings suggest that individuals with PTSD who experience between-session habituation to SDI-related distress are likely to experience a corresponding improvement in PTSD symptoms.
AuthorsAndrew G Guzick, Aron Tendler, Lily A Brown, Ogechi C Onyeka, Eric A Storch
JournalJournal of traumatic stress (J Trauma Stress) Vol. 37 Issue 2 Pg. 291-306 (Apr 2024) ISSN: 1573-6598 [Electronic] United States
PMID38291162 (Publication Type: Randomized Controlled Trial, Journal Article)
Copyright© 2024 International Society for Traumatic Stress Studies.
Topics
  • Adult
  • Humans
  • Stress Disorders, Post-Traumatic (psychology)
  • Transcranial Magnetic Stimulation (methods)
  • Treatment Outcome
  • Imagery, Psychotherapy (methods)
  • Linguistics

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