Changes in psychological flexibility during acceptance and commitment therapy for obsessive compulsive disorder

Scoping Review of Acceptance and Commitment Therapy for Obsessive-Compulsive Disorder in Iran

Acceptance and commitment therapy (ACT) for obsessive-compulsive disorder (OCD) has been found efficacious in randomized clinical trials (RCTs), but the two widely known RCTs were conducted within the United States with predominantly White samples. Research that evaluates treatments like ACT for OCD outside the typical Western cultures is needed. The current scoping review summarizes the key characteristics and findings from 18 RCTs that evaluated ACT for OCD in Iran. These RCTs are largely unknown in the broader scientific literature despite representing the vast majority of ACT for OCD trials, in part because the majority are published in Persian. The preponderance of RCTs treated participants in groups, and most protocols did not include exposure exercises. Of 18 trials, 5 were single sex. Use of selective serotonin reuptake inhibitors (SSRIs) was common with all participants on stable doses at pretreatment in many of the trials. Methodological quality was low to medium. ACT was inconsistent against nontraditional comparison conditions, slightly favorable to empirically validated treatments, and favorable compared with the waitlist and SSRIs. The process of change data indicated that ACT increased the psychological flexibility more than cognitive behavior therapy or SSRIs. These results highlight that findings on ACT for OCD from Western populations replicate and generalize to individuals in Iran. These findings also offer insights gained from studying ACT in Iran and significantly expand the literature based on ACT for OCD that can be integrated into scholarship by all researchers.

A network analysis of mechanisms of change during exposures over the course of intensive OCD treatment

Exposure and response prevention (ERP) is an evidence-based treatment for obsessive-compulsive disorder (OCD). Theories for how it works vary in their emphasis on active mechanisms of change. The current study aimed to clarify mechanisms of change in ERP for OCD using network analysis, comparing ERP networks at the start and end of intensive treatment (partial hospital and residential). In our sample of 182 patients, the most central node in both networks was engagement with exposure, which was consistently related to greater understanding of ERP rationale, higher willingness, and less ritualization, accounting for all other variables in the network. There were no significant differences in networks between the start and end of treatment. These results suggest that nonspecific parameters like facilitating engagement in exposures without ritualizing and providing a clear rationale to clients may be key to effective treatment. As such, it may be useful for clinicians to spend adequate time underscoring the need to eliminate rituals to fully engage in exposure tasks and explaining the rationale for ERP prior to doing exposures, regardless of theoretical orientation. Nonetheless, findings represent group-level statistics and more fine-grained idiographic analyses may reveal individual-level differences with respect to central mechanisms of change. Other limitations include demographic homogeneity of our sample.

Effectiveness of Internet-delivered self-help acceptance and commitment therapy (iACT) on nurses' obsessive-compulsive symptoms and sleep quality: A randomized controlled trial with 3-month follow-up

BACKGROUND

Frontline nurses suffered unprecedented mental distress during the COVID-19 pandemic. It's essential to explore new and more accessible alternatives to improve the availability of psychological treatments. This study aimed to investigate the influence of online self-help iACT linear intervention and iACT loop intervention on sleep quality (SQ), obsessive-compulsive symptoms (OCS), and psychological flexibility (PF) in nurses.

METHODS

A randomized controlled trial was conducted at a hospital in China. 602 participants were randomly assigned to the iACT linear intervention, iACT loop intervention, or wait list control group, and required to complete the questionnaires of OCS, PF and SQ. The linear mixed effects analysis (LMM) was used to analyze the impact of the intervention on outcome variables.

RESULTS

LMM analyses demonstrated that both two intervention had significant improvement on OCS (t = -38.235, p < 0.001), PF (t = 28.156, p < 0.001), as well as SQ (t = -16.336, p < 0.001). There were significant differences between the linear group and loop group on the PF in T2 (t = -8.271, p < 0.001), T3 (t = -8.366, p < 0.001), T4 (t = -8.302, p < 0.001), with the iACT loop model (Cohen's d = 1.652) showing a slight advantage over the iACT linear model (Cohen's d = 1.134).

CONCLUSIONS

The findings indicate that two interventions positively impact OCS, PF, and SQ. Compared to the iACT linear psychotherapy model, the iACT loop model shows greater effectiveness in enhancing PF, making it helpful to promote significant improvements in psychotherapy planning.

Comparison of the effectiveness of acceptance and commitment therapy (ACT) with metacognitive therapy (MCT) in objective cognitive information processing style of obsessive-compulsive patients (OCD)

BACKGROUND

In recent studies, the deficit in the cognitive process has been investigated as one of the etiological hypotheses in a wide range of obsessive-compulsive disorders (OCD). This study aimed to compare the effectiveness of acceptance and commitment therapy (ACT) and metacognitive therapy (MCT) on objective cognitive information processing style in obsessive-compulsive patients.

MATERIALS AND METHODS

This quasi-experimental study with a pre-test and post-test plan and a control group was conducted on 45 patients with OCD, matched with gender, age, and educational and marital status. The samples in three groups were selected using the convenience sampling method. Finally, the study participants were randomly divided into two experimental groups and one control group and assessed using Pacini and Epstein's rational experimental Inventory (REI) in two stages, pre-test, and post-test. The experimental groups received ACT and MCT weekly during eight and seven sessions and in a group.

RESULTS

The results showed that ACT and MCT are effective at a significant level in the objective cognitive information processing style of obsessive-compulsive patients (P < 0.05). The post-test results showed that the effect of ACT in changing rational processing style is more effective than MCT treatment. Also, the effect of ACT on intuitive processing style changes was greater than on MCT treatment.

CONCLUSION

The findings of this study indicate that ACT and MCT cause a significant change in intuitive style to rationalism in the thematic processing of cognitive information of obsessive-compulsive patients. According to the results, both methods of treatment improve the research variables in these patients.

The role of psychological flexibility in acceptance-enhanced behavior therapy for trichotillomania: Moderation and mediation findings

Trichotillomania is characterized by recurrent pulling out of one's hair, leading to significant hair loss and accompanied by clinically significant distress and/or functional impairment. The current study used data from a randomized controlled trial comparing the effectiveness of acceptance-enhanced behavior therapy (AEBT) to psychoeducation plus supportive therapy (PST; active control) for trichotillomania in an adult sample. The objectives were to examine the moderating and mediating influence of trichotillomania-specific psychological flexibility in treatment for trichotillomania. Participants with lower baseline flexibility performed better in AEBT than PST in terms of greater symptom reduction and quality of life. Lower baseline flexibility also predicted higher likelihood of disorder recovery in AEBT relative to PST. In addition, relative to PST, symptom reduction in AEBT was mediated by psychological flexibility, controlling for anxiety and depression. These findings suggest that psychological flexibility is a relevant process of change in the treatment of trichotillomania. Clinical implications and directions for future research are discussed.

Mediating role of psychological flexibility in the effect of obsessive-compulsive symptoms on sleep quality among nurses during the COVID-19 pandemic

Front-line nurses suffered unprecedented mental distress and severe insomnia during the COVID-19 pandemic. Present study aimed to explore the relationship between obsessive-compulsive symptoms and sleep quality and examine the potential mediating role of psychological flexibility between obsessive-compulsive symptoms and sleep quality. A total of 496 nurses from a Chinese large-scale Class 3 A Comprehensive Hospital were included in an online cross-sectional survey and completed the revised obsessive-compulsive inventory (OCI-R), Multidimensional Psychological Flexibility Inventory (MPFI) and Pittsburgh Sleep Quality Index (PSQI). As predicted, obsessive-compulsive symptoms were negatively associated with psychological flexibility and sleep quality, and psychological flexibility was positively associated with sleep quality. In addition, the relationship between obsessive-compulsive symptoms and sleep quality was partially mediated by psychological flexibility, which can provide some reference for the treatment of the obsessive-compulsive disorder (OCD) and insomnia, and lead to improvements in clinical and psychotherapy planning.

Psychotherapies and digital interventions for OCD in adults: What do we know, what do we need still to explore?

BACKGROUND

Despite significant advances in the understanding and treatment of obsessive compulsive disorder (OCD), current treatment options are limited in terms of efficacy for symptom remission. Thus, assessing the potential role of iterative or alternate psychotherapies is important. Also, the potential role of digital technologies to enhance the accessibility of these therapies, should not be underestimated. We also need to embrace the idea of a more personalized treatment choice, being cognisant of clinical, genetic and neuroimaging predictors of treatment response.

PROCEDURES

Non-systematic review of current literature on emerging psychological and digital therapies for OCD, as well as of potential biomarkers of treatment response.

FINDINGS

A number of 'third wave' therapies (e.g., Acceptance and Commitment Therapy, Mindfulness-Based Cognitive Therapy) have an emerging and encouraging evidence base in OCD. Other approaches entail employment of elements of other psychotherapies such as Dialectical Behaviour Therapy; or trauma-focussed therapies such as Eye Movement Desensitisation and Reprocessing, and Imagery Rescripting and Narrative Therapy. Further strategies include Danger Ideation Reduction Therapy and Habit Reversal. For these latter approaches, large-scale randomised controlled trials are largely lacking, and the precise role of these therapies in treating people with OCD, remains to be clarified. A concentrated 4-day program (the Bergen program) has shown promising short- and long-term results. Exercise, music, and art therapy have not been adequately tested in people with OCD, but may have an adjunctive role. Digital technologies are being actively investigated for enhancing reach and efficacy of psychological therapies for OCD. Biomarkers, including genetic and neuroimaging, are starting to point to a future with more 'personalised medicine informed' treatment strategizing for OCD.

CONCLUSIONS

There are a number of potential psychological options for the treatment of people with OCD who do not respond adequately to exposure/response prevention or cognitive behaviour therapy. Adjunctive exercise, music, and art therapy might be useful, albeit the evidence base for these is very small. Consideration should be given to different ways of delivering such interventions, including group-based, concentrated, inpatient, or with outreach, where appropriate. Digital technologies are an emerging field with a number of potential applications for aiding the treatment of OCD. Biomarkers for treatment response determination have much potential capacity and deserve further empirical testing.

The Applicability of Acceptance and Commitment Therapy for Obsessive-Compulsive Disorder: A Systematic Review and Meta-Analysis

Background: Acceptance and commitment therapy (ACT), a third-generation cognitive behavioral therapy (CBT), has proved its efficacy amidst various mental disorders. A growing body of studies has shown that ACT can improve obsessive-compulsive disorder (OCD) severity in recent years. To assess the effect of ACT on OCD, we carried out a systematic review and meta-analysis to provide a basis for therapists to use different psychological dimensions of ACT for OCD. Methods: PubMed, the Cochrane Library, EMBASE, EBSCO Host, and literature references were searched until May 2021. Randomized controlled trials (RCTs) and other study designs assessing the effect of ACT among adults suffering from OCD were examined. Results: Fourteen studies, including 413 participants, published between 2010 and 2021 were identified. ACT made statistically significant progress in the Yale–Brown Obsessive–Compulsive Scale (YBOCS) compared with control conditions. Conclusion: After reviewing all the ACT studies, we acknowledge the plausibility of ACT in treating OCD and improving its symptoms for the clinical population. ACT can also be an adjunct therapy for other well-established treatments. It also favors targeting psychological inflexibility. Further well-controlled and high-quality RCTs are required for a better conclusion in further studies.

Psychological flexibility as a potential change factor in cognitive behavioural therapy of OCD

BACKGROUND

To gain a better understanding about which aspects of the treatment work for obsessive-compulsive disorders (OCD), the investigation of possible change factors is essential. Psychological flexibility (PsyF) has been of interest in research on successful OCD therapy for some time. Exposure interventions and cognitive strategies in cognitive behavioural therapy (CBT) for OCD may enhance PsyF. To date, however, no process studies have been published that clarify the role of PsyF as a possible change factor for the reduction of OCD symptoms.

AIMS

This study investigates whether PsyF works as a mediator in successful CBT treatment of OCD.

METHOD

The study recruited 112 adults diagnosed with OCD in a multi-modal in-patient treatment with specific CBT including exposure and response prevention (ERP). The Yale-Brown Obsessive-Compulsive Scale (Y-BOCS) was used to measure OCD symptoms and three self-constructed items to assess PsyF. PsyF was conceptualised as the capability of patients to accept stressful feelings and thoughts. Data were collected weekly. For statistical analysis at the process level, longitudinal multi-level models (MLMs) with random intercepts and linear growth curves were estimated to test for mediation of PsyF on Y-BOCS.

RESULTS

OCD symptoms decreased significantly and PsyF increased in patients throughout the course of therapy. MLM revealed that higher average values in PsyF were associated with lower Y-BOCS sum values, but only values between subjects significantly predicted the degree of obsessions and compulsions.

CONCLUSIONS

Although research shows that PsyF is enhanced by CBT and also shows a connection with Y-BOCS values, its role as a mediator could not be confirmed.

Relationship Between Cognitive Fusion, Experiential Avoidance, and Obsessive-Compulsive Symptoms in Patients With Obsessive-Compulsive Disorder

Objective: This study aimed to explore the relationship among cognitive fusion, experiential avoidance, and obsessive-compulsive symptoms in patients with obsessive-compulsive disorder (OCD). Methods: A total of 118 outpatient and inpatient patients with OCD and 109 healthy participants, gender- and age-matched, were selected using cognitive fusion questionnaire (CFQ), acceptance and action questionnaire-2nd edition (AAQ-II), Yale-Brown scale for obsessive-compulsive symptoms, Hamilton anxiety scale, and Hamilton depression scale for questionnaire testing and data analysis. Results: The levels of cognitive fusion and experiential avoidance in the OCD group were significantly higher than those in the healthy control group (P < 0.05). Regression analysis results showed that, in predicting the total score of obsessive-compulsive symptoms, AAQ-II (β = 0.233, P < 0.05) and CFQ (β = 0.262, P < 0.01) entered the equation, which explained 17.1% variance. In predicting anxiety, only AAQ-II (β = 0.222, P < 0.05) entered the equation, which explained 13% variance. In the prediction of depression, AAQ-II (β = 0.412, P < 0.001) entered the equation, which explained 17.7% variance. Conclusion: Cognitive fusion and experiential avoidance may be important factors for the maintenance of OCD, and experiential avoidance can positively predict the anxiety and depression of OCD patients.

A Preliminary Examination of Acceptance and Commitment Therapy Versus Exposure and Response Prevention for Patients with Obsessive-Compulsive Disorder on an Optimal Dose of SSRIs: A Randomized Controlled Trial in Iran

This study compared the effects of adding acceptance and commitment therapy (ACT) or exposure and response prevention (ERP) to adults diagnosed with obsessive compulsive disorder (OCD) already on an optimal and stable dose of selective serotonin reuptake inhibitors (SSRIs). Forty adults on SSRIs who were diagnosed with OCD participated in a randomized controlled trial in Iran of 12 individual weekly sessions of either ACT+SSRI, ERP+SSRI, or continued SSRI only. The results showed significant reductions in OCD symptom severity in ACT+SSRI and ERP+SSRI conditions at posttreatment with significantly greater reductions in both conditions compared to SSRI-only at follow-up. Additionally, psychological inflexibility and use of thought control strategies significantly decreased in the ACT+SSRI condition at posttreatment and follow-up compared to the ERP+SSRI and SSRI conditions. Both conditions led to decreases in perceived importance of stop signals. Results provide cross-cultural support for the treatment of OCD using ACT and ERP as adjuncts to SSRI and modest process of change differences between ACT and ERP. Future directions and study limitations are discussed.

Preliminary evidence of the effectiveness of acceptance and commitment therapy for death anxiety in Iranian clients diagnosed with obsessive-compulsive disorder

The authors investigated the effectiveness of acceptance and commitment therapy (ACT) for the treatment of death anxiety and obsessive-compulsive disorder (OCD) with eight adult women in Iran. The ACT protocol was conducted in weekly solo sessions with each participant for 8 weeks (45 minutes each). The results were analyzed by visual analysis method and improvement percentage. ACT resulted in a 60%-80% decrease in death anxiety and a 51%-60% decrease in obsessive-compulsive symptoms, thereby indicating promise for ACT as a treatment for OCD and death anxiety.

New-wave behavioral therapies in obsessive-compulsive disorder: Moving toward integrated behavioral therapies

New-wave behavioral therapies in obsessive-compulsive disorders (OCDs) comprise of third-wave therapies and newer cognitive therapies (CTs). This review covers outcome studies published in English until December 2017. A total of forty articles on mindfulness-based CT, metacognitive therapy, acceptance and commitment therapy, and danger ideation reduction therapy in the form of single-case studies, case series, open-label trials, two-group comparison studies, and randomized controlled studies were included. Results show that studies on these therapies are limited in number. Methodological limitations including lack of active control groups, randomized controlled trials, small sample sizes, and short follow-up periods were also noted. However, the available literature demonstrates the feasibility and utility of these therapies in addressing the issues unresolved by exposure and response prevention (ERP) and cognitive behavior therapy (CBT). These therapies were often combined with traditional ERP and CBT based on the profile and response of the client; hence, it is unclear whether they can be used as standalone therapies in the larger segment of the OCD population. Supplementary use of these strategies alongside established therapies could provide better utilization of resources. In view of the need for such integration, further research is warranted. The use of sound methodologies and establishing the mechanism of action of these therapies would assist in choosing the techniques for integration.

Increasing body image flexibility in a residential eating disorder facility: Correlates with symptom improvement

OBJECTIVE

The purpose of this study was to examine the effects of changes in body image psychological flexibility over the course of treatment on various outcome variables.

METHOD

Participants included 103 female, residential patients diagnosed with an eating disorder. Pretreatment and posttreatment data were collected that examined body image psychological flexibility, general psychological flexibility, symptom severity, and other outcome variables.

RESULTS

Changes in body image psychological flexibility significantly predicted changes in all outcome measures except for obsessive-compulsive symptoms after controlling for body mass index, depression, and anxiety. Additionally, these results were maintained after controlling for general psychological flexibility, contributing to the incremental validity of the BI-AAQ.

DISCUSSION

This study suggests that changes in body image psychological flexibility meaningfully predict changes in various treatment outcomes of interest, including eating disorder risk, quality of life, and general mental health. Findings indicate that body image psychological flexibility might be a viable target for eating disorder treatment.

Acceptance and Commitment Therapy as a Treatment for Anxiety and Depression: A Review

Acceptance and commitment therapy (ACT) is a modern form of cognitive behavioral therapy based on a distinct philosophy and basic science of cognition. This article reviews the core features of ACT's theoretic model of psychopathology and treatment and its therapeutic approach. It provides a systematic review of randomized controlled trials (RCTs) evaluating ACT for depression and anxiety disorders. Summarizing 36 RCTs, ACT appears to be more efficacious than waitlist conditions and treatment-as-usual, with largely equivalent effects relative to traditional cognitive behavioral therapy. Evidence indicates that ACT treatment outcomes are mediated through increases in psychological flexibility, its theorized process of change.

Feasibility randomised controlled trial of a self-help acceptance and commitment therapy intervention for grief and psychological distress in carers of palliative care patients

We tested the feasibility and preliminary effectiveness of an acceptance and commitment therapy self-help intervention for grief and psychological distress in carers of patients in palliative care. Carers were randomised to the control group, which received treatment as usual, or the intervention group, which received treatment as usual plus an acceptance and commitment therapy–based self-help booklet and telephone support call. Questionnaires were completed at baseline, 1-month post-allocation and 6 months post-loss. Results indicated that the intervention was generally feasible and viewed as acceptable to carers. Preliminary effectiveness analyses showed at least a small effect in acceptance, valued-living, grief and psychological distress.