Corrigendum: A multiple-baseline evaluation of acceptance and commitment therapy focused on repetitive negative thinking for comorbid generalized anxiety disorder and depression.

[This corrects the article DOI: 10.3389/fpsyg.2020.00356.].

Dispositional mindfulness is associated with less cognitive fusion and better effortful control in young people: The mediating role of repetitive negative Thinking / Mindfulness disposicional se asocia con menor fusión cognitiva y mejor control del esfuerzo en personas jóvenes: El rol mediador del pensamiento negativo repetitivo

Abstract Introduction: The scientific community is taking an increasing interest in mindful ness due to its positive association with physical and psychological health indicators. However, there is still ongoing debate as to whether there could be other explanations for these effects. Aim: This study explores the relationships between dispositional mindfulness, cognitive fusion, effortful control and repetitive negative thinking (RNT). RNT was chosen as a potential me diating variable due to its presence in multiple psychological disorders. Method: A mediation analysis was performed using the bootstrap method with 5000 replications on data collected from a non-clinical sample of 415 young adults who completed a battery of online questionnai res. Results: Dispositional mindfulness is negatively associated with measures of RNT, effortful control and cognitive fusion. The analyses indicate that the effect that dispositional mindful ness has on cognitive fusion in young people can be partially mediated with medium effect size by RNT. Conclusion: RNT may play a central role as an underlying process in the link between mindfulness and different psychological aspects.

Resumen Introducción: Mindfulness ha ganado interés dentro de la comunidad científica dada su asociación con resultados positivos sobre indicadores de salud física y psicológica. Sin embargo, el debate sigue abierto sobre cuáles son los procesos que podrían mediar estas re laciones. Objetivo: Explorar en una muestra de 415 jóvenes, las relaciones entre mindfulness disposicional, fusión cognitiva, control del esfuerzo y pensamiento negativo repetitivo (PNR). El PNR se propone como potencial variable mediadora debido a que se es común en múltiples trastornos psicológicos. Método: Los análisis de mediación realizados a través de Bootstrap ping con 5000 replicaciones, indicaron que el efecto que genera el mindfulness disposicional sobre la fusión cognitiva puede estar mediado parcialmente por el PNR en personas jóvenes con un tamaño del efecto medio. Conclusiones: Mindfulness disposicional se relaciona de manera negativa con las medidas de PNR, control del esfuerzo y fusión cognitiva. Por tanto, el PNR podría desempeñar un papel importante como proceso subyacente entre mindfulness y diferentes aspectos psicológicos.

Content validity and perceived utility of a self-help online acceptance and commitment therapy program focused on repetitive negative thinking.

Telehealth strategies have become essential for responding to the sanitary emergency due to the COVID-19 pandemic. In this context, developing online psychological interventions (OPIs) that can treat and prevent psychological difficulties is gaining more relevance. This article describes an acceptance and commitment therapy (ACT) based OPI focused on repetitive negative thinking (RNT). This OPI is called Disentangled, Aware, and Committed (DAC) and represents an attempt to adapt previous RNT-focused ACT protocols to this format type. Study 1 evaluated content validity through the assessment of four experts in ACT regarding clarity, utility, pertinence, conceptual adjustment, and therapeutic goal fulfillment for each component of the DAC program. In Study 2, forty-one undergraduate clinical psychology trainees rated the components of the DAC program according to its clarity and perceived utility. These participants were enrolled in a randomized controlled trial that analyzed the efficacy of the DAC to prevent the usually observed increase in emotional symptoms and RNT among this population. Expert reviewers in Study 1 rated all DAC components as clear and useful for potential users, following a logical order, theoretically coherent with the ACT model, and successfully fulfilling its stated goals. In Study 2, the participants also rated the DAC components as clear and potentially useful for their lives. In conclusion, the DAC appears to be a feasible transdiagnostic OPI for treating and preventing emotional symptoms, which warrants further studies analyzing its efficacy.

A Multiple-Baseline Evaluation of Acceptance and Commitment Therapy Focused on Repetitive Negative Thinking for Comorbid Generalized Anxiety Disorder and Depression.

Repetitive negative thinking (RNT) is a core feature of generalized anxiety disorder (GAD) and depression. Recently, some studies have shown promising results with brief protocols of acceptance and commitment therapy (ACT) focused on RNT in the treatment of emotional disorders in adults. The current study analyzes the effect of an individual, 3-session, RNT-focused ACT protocol in the treatment of severe and comorbid GAD and depression. Six adults meeting criteria for both disorders and showing severe symptoms of at least one of them participated in the study. A delayed multiple-baseline design was implemented. All participants completed a 5-week baseline without showing improvement trends in emotional symptoms (Depression Anxiety and Stress Scale - 21; DASS-21) and pathological worry (Penn State Worry Questionnaire; PSWQ). The ACT protocol was then implemented, and a 3-month follow-up was conducted. Five of the six participants showed clinically significant changes in the DASS-21 and the PSWQ. The standardized mean difference effect sizes for single-case experimental design were very large for emotional symptoms (d = 3.34), pathological worry (d = 4.52), experiential avoidance (d = 3.46), cognitive fusion (d = 3.90), repetitive thinking (d = 4.52), and valued living (d = 0.92 and d = 1.98). No adverse events were observed. Brief, RNT-focused ACT protocols for treating comorbid GAD and depression deserve further empirical tests.

Psychometric Properties and Measurement Invariance Across Gender and Age-Group of the Perseverative Thinking Questionnaire-Children (PTQ-C) in Colombia.

Recent research has found that repetitive negative thinking (RNT) is an important transdiagnostic process both in adult and child psychopathology. This finding has led some authors to design content-independent measures of RNT that can be administered across disorders. One of these instruments is the Perseverative Thinking Questionnaire (PTQ) and its version for children (PTQ-C). This study presents the Spanish translation of the PTQ-C and its psychometric analysis in a sample of 1,127 Colombian children and adolescents (8-18 years old). All items obtained good discrimination indexes, and internal consistency was excellent (.93). A cross-validation study was conducted to analyze the factor structure of the PTQ-C, which strongly supported the one-factor structure. Measurement invariances across gender and age-group (8-12 and 13-18 years old) were also found. The PTQ-C scores for older boys were lower than for younger boys, whereas the inverse pattern was found for girls. The PTQ-C showed strong correlations with measures of pathological worry, emotional symptoms, and psychological inflexibility. In conclusion, the Spanish translation of the PTQ-C appears to be a valid and reliable measure of RNT.