RESUMEN
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.
Asunto(s)
Trastornos por Estrés Postraumático , Adulto , Humanos , Trastornos por Estrés Postraumático/psicología , Estimulación Magnética Transcraneal/métodos , Resultado del Tratamiento , Imágenes en Psicoterapia/métodos , LingüísticaRESUMEN
OBJECTIVE: To examine the efficacy of the parent-led intervention Supportive Parenting for Anxious Childhood Emotions (SPACE) relative to a low-dose version of the protocol among children and adolescents with clinically significant anxiety and/or obsessive-compulsive disorder (OCD). METHOD: 68 youth (7-17) with anxiety/OCD and their parents were randomized to receive 12 weekly telehealth SPACE sessions (SPACE-Standard) or bibliotherapy plus 4 telehealth sessions over 12 weeks (SPACE-light). After screening, assessments were conducted via videoconferencing at baseline, post-treatment, and one-month follow-up. Independent evaluators were blind to treatment condition. RESULTS: Treatment condition did not predict whether a participant responded to the intervention (SPACE-Standard = 70%; SPACE-Light = 68%), nor was treatment condition a predictor of anxiety severity, parent-reported anxiety, or parent-/child-reported functional impairment at post-treatment or one-month follow-up. Youth in SPACE-Light self-reported higher post-treatment anxiety than youth in SPACE-standard, though this was no longer significant at one-month follow-up. Parent-reported family accommodation total change scores were associated with anxiety severity at post-treatment across both arms. CONCLUSION: This is the second randomized controlled trial (RCT) evaluating SPACE and provides further support for the efficacy of this intervention both in standard and low-dose formats. This study provides support for parent-led anxiety treatment targeting family accommodation as a primary mechanism of change and extends evidence of efficacy to a more clinically diverse sample. TRIAL REGISTRATION: ClinicalTrials.gov Registry: NCT04922502.https://classic. CLINICALTRIALS: gov/ct2/show/NCT04922502.