Does mindfulness improve inhibitory control in psychotic disorders? A randomized controlled clinical trial / ¿Mejora el mindfulness el control inhibitorio en la psicosis? Un ensayo clínico aleatorizado y controlado

BACKGROUND/OBJECTIVE: Impaired Inhibitory Control (IC) is a core feature of psychotic disorders and is related with impaired social functioning in people experiencing psychosis. Despite research showing the benefits of mindfulness over IC in the general population, no study has assessed its effects on IC in psychoses. The aim of our study was to assess the effectiveness of a mindfulness-based intervention combined with integrated rehabilitation treatment in a sample of people diagnosed of psychotic disorders. METHOD: Fifty-six patients diagnosed with psychotic disorder were recruited and randomly allocated either to integrated rehabilitation treatment or integrated rehabilitation treatment enhanced with 26 mindfulness group sessions. Measures comprised PANSS interview, MAAS scale, and Stroop Color Word Test (SCWT). The primary outcome variable was the performance in the non-congruent trials of the SCWT. RESULTS: There were no differences between groups at baseline. At post-treatment patients allocated to mindfulness group increased their scores in non-congruent trials of SCWT and in MAAS. At post-treatment mindfulness group scored higher than integrated rehabilitation treatment in MAAS. CONCLUSIONS: Data suggest that mindfulness added to integrated rehabilitation treatment may improve IC in psychosis. Results are convergent with prior works about the effect of mindfulness over cognitive performance in general population

ANTECEDENTES/OBJETIVO: Los déficits en el control inhibitorio (CI) son una característica central en trastornos psicóticos y se relaciona con funcionamiento social deteriorado en personas con síntomas psicóticos. A pesar de las investigaciones que muestran los beneficios del mindfulness sobre el CI, ningún estudio ha evaluado sus efectos en las psicosis. El objetivo de este estudio fue evaluar la eficacia de una intervención basada en mindfulness combinada con tratamiento rehabilitador integrado en una muestra de personas diagnosticadas con trastorno psicótico. MÉTODO: Cincuenta y seis pacientes diagnosticados con trastorno psicótico fueron reclutados y asignados aleatoriamente a tratamiento rehabilitador integrado o a tratamiento rehabilitador integrado mejorado con 26 sesiones grupales de mindfulness. Las medidas fueron la entrevista PANSS, la escala MAAS, y el Test Stroop de Palabras y Colores (TSPC). La variable resultado principal fue el rendimiento en los ensayos no congruentes del TSPC. RESULTADOS: No hubo diferencias entre grupos antes del tratamiento. En el postratamiento los pacientes del grupo de mindfulness incrementaron sus puntuaciones en TSPC y en MAAS. El grupo de mindfulness puntuó más alto que el de tratamiento rehabilitador integrado en MAAS. CONCLUSIONES: El mindfulness añadido al tratamiento rehabilitador integrado puede mejorar el CI en las psicosis. Los resultados son convergentes con los trabajos previos sobre el efecto del mindfulness en la población general

Does mindfulness improve inhibitory control in psychotic disorders? A randomized controlled clinical trial.

Background/Objective: Impaired Inhibitory Control (IC) is a core feature of psychotic disorders and is related with impaired social functioning in people experiencing psychosis. Despite research showing the benefits of mindfulness over IC in the general population, no study has assessed its effects on IC in psychoses. The aim of our study was to assess the effectiveness of a mindfulness-based intervention combined with integrated rehabilitation treatment in a sample of people diagnosed of psychotic disorders. Method: Fifty-six patients diagnosed with psychotic disorder were recruited and randomly allocated either to integrated rehabilitation treatment or integrated rehabilitation treatment enhanced with 26 mindfulness group sessions. Measures comprised PANSS interview, MAAS scale, and Stroop Color Word Test (SCWT). The primary outcome variable was the performance in the non-congruent trials of the SCWT. Results: There were no differences between groups at baseline. At post-treatment patients allocated to mindfulness group increased their scores in non-congruent trials of SCWT and in MAAS. At post-treatment mindfulness group scored higher than integrated rehabilitation treatment in MAAS. Conclusions: Data suggest that mindfulness added to integrated rehabilitation treatment may improve IC in psychosis. Results are convergent with prior works about the effect of mindfulness over cognitive performance in general population.

Antecedentes/Objetivo: Los déficits en el control inhibitorio (CI) son una característica central en trastornos psicóticos y se relaciona con funcionamiento social deteriorado en personas con síntomas psicóticos. A pesar de las investigaciones que muestran los beneficios del mindfulness sobre el CI, ningún estudio ha evaluado sus efectos en las psicosis. El objetivo de este estudio fue evaluar la eficacia de una intervención basada en mindfulness combinada con tratamiento rehabilitador integrado en una muestra de personas diagnosticadas con trastorno psicótico. Método: Cincuenta y seis pacientes diagnosticados con trastorno psicótico fueron reclutados y asignados aleatoriamente a tratamiento rehabilitador integrado o a tratamiento rehabilitador integrado mejorado con 26 sesiones grupales de mindfulness. Las medidas fueron la entrevista PANSS, la escala MAAS, y el Test Stroop de Palabras y Colores (TSPC). La variable resultado principal fue el rendimiento en los ensayos no congruentes del TSPC. Resultados: No hubo diferencias entre grupos antes del tratamiento. En el postratamiento los pacientes del grupo de mindfulness incrementaron sus puntuaciones en TSPC y en MAAS. El grupo de mindfulness puntuó más alto que el de tratamiento rehabilitador integrado en MAAS. Conclusiones: El mindfulness añadido al tratamiento rehabilitador integrado puede mejorar el CI en las psicosis. Los resultados son convergentes con los trabajos previos sobre el efecto del mindfulness en la población general.

Psychotic symptoms and quality of life: A mediation analysis of daily-life coping.

Prior studies suggest the relationship between psychotic symptoms and Quality of Life (QoL) may be mediated by diverse constructs. QoL in schizophrenia-related disorders has been related with coping with daily stressors. Based on previous studies, our hypothesis was that coping mediates the relationship between psychotic symptoms and QoL. Therefore, the aim of the study was to test the hypothesis in a sample of people with schizophrenia-related disorders from a community rehabilitation center. Sixty-six patients were assessed using PANSS, WHOQOL-BREF questionnaire, and COPE Inventory. Regression analyses were performed for each WHOQOL-BREF dimension using PANSS and COPE factors as predictors. Mediation analysis was performed for each WHOQOL-BREF dimension using significant PANSS scales as predictors and significant COPE factors as mediators. Sobel test showed that Self-Sufficient (Problem-focused) coping mediates the relationship between PANSS Positive and WHOQOL-BREF Psychological and WHOQOL-BREF Environmental scores. Results suggest that coping style based on personal abilities and oriented to the stressors mediates the relationship between positive symptoms and QoL associated to well-being and environmental features. However, in our study no coping style mediated the relationship between negative symptoms and QoL. Depressive symptoms predicted each QoL dimension and were not mediated by any coping style.

Mindfulness improves psychological quality of life in community-based patients with severe mental health problems: A pilot randomized clinical trial.

OBJECTIVE: To examine the effectiveness of group mindfulness-based intervention (MBI) in patients diagnosed with severe mental illness. The primary outcome was health-related psychological quality of life. Secondary measures were environmental, social and physical health related quality of life, frequency and intensity of psychotic symptoms and daily-life mindfulness. METHOD: Forty-four patients from a public community rehabilitation center for people with severe mental illness were recruited, and randomly allocated to Integrated Rehabilitation Treatment (IRT) or IRT plus MBI. Measures included PANSS interview, WHOQOL-BREF, and Mindfulness Attention Awareness Scale. MBI comprised 26 one-hour weekly sessions. Intention-to-treat analysis was used. RESULTS: One patient did not complete IRT+MBI and two did not complete IRT. At baseline there were no statistical group differences in demographic characteristics or primary and secondary outcomes. At post-treatment interaction between treatment and time in health-related psychological quality of life was statistically significant, and simple effect analysis showed significant differences for between and within subject factor in favor of MBI. Interaction was also significant in PANSS negative symptoms, simple effects showed a statistical trend in within subject factor. Time factor was significant in environmental and physical quality of life. CONCLUSIONS: Data suggest mindfulness added to IRT may enhance psychological quality of life in people with severe mental illness from a public community center. Results also suggest that mindfulness may impact frequency and intensity of negative symptoms.