A randomized controlled trial of emotion regulation therapy for generalized anxiety disorder with and without co-occurring depression

Effect of cognitive behavioral therapy for insomnia on sleep quality among college students: the role of hyperarousal and dysfunctional beliefs

BACKGROUND

Although cognitive-behavioral therapy for insomnia (CBT-I) is an effective treatment for sleep disorders, little is known about the role of hyperarousal (especially trait arousal) in CBT-I interventions. Therefore, this study investigated the role of trait arousal in the maintenance of sleep problems using cross-sectional and longitudinal methods.

METHODS

Study 1, 1209 Chinese university students (63.9% female) completed the Dysfunctional Beliefs and Attitudes about Sleep (DBAS-16), Pre-sleep Arousal Scale (PSAS), Arousal Predisposition Scale (APS), and Pittsburgh Sleep Quality Index (PSQI). The study calculated the moderating role of trait arousal in the relationship between dysfunctional beliefs about sleep and sleep quality. In study two, 89 participants completed the questionnaire used in Study 1 during pre-and post-treatment. A within-subjects mediation analysis examined the indirect effects of dysfunctional beliefs about sleep pre-sleep arousal (cognitive and somatic) on sleep quality. A within-subjects moderation analysis was used to investigate whether baseline trait arousal moderated sleep quality.

RESULTS

Cross-sectional findings indicated that pre-sleep cognitive arousal mediated the effects of dysfunctional beliefs about sleep on sleep quality and that trait arousal moderated the first half of the mediating pathway described above; longitudinal analyses indicated that changes in dysfunctional beliefs about sleep and pre-sleep cognitive arousal mediated changes in sleep quality, and that, in addition, trait arousal moderated changes in sleep quality.

CONCLUSION

Trait arousal correlates with the maintenance of sleep problems, and participants with higher trait arousal benefited less from CBT-I. Enhancement programs that incorporate mindfulness may be a direction for future research.

A multi-method assessment of emotional processes predicting longitudinal anxiety symptom trajectories in an adolescent clinical sample

Objective

Emotion recognition, reactivity, and regulation are important in the development and maintenance of anxiety disorders. Whether and how these processes differentiate between different trajectories in anxiety remain unclear. The current study examined emotional processes as prospective predictors of anxiety symptom trajectories in psychiatrically hospitalized youth.

Method

Participants were 180 adolescents (M age = 14.89; SD = 1.35) from a psychiatric inpatient unit. At index hospitalization, participants completed a behavioral task assessing facial emotion recognition, and self-report measures of emotion dysregulation and reactivity. They completed a self-report measure on anxiety symptoms at baseline and 3, 6, 12, and 18 months post-discharge. Latent growth curve analysis was conducted to identify subgroups of individuals based upon their trajectory of anxiety symptoms across 18-months. ANOVAs were used to examine subgroup differences in emotional processing variables.

Results

Three distinct trajectories were identified, a stable moderate-to-high anxiety group, a group with moderate-to-high anxiety at baseline with symptom improvement over time, and a group characterized by relatively stable low-to-moderate anxiety throughout the study. The two initially moderate-to-high anxiety groups scored higher for emotion dysregulation and emotion reactivity at baseline compared to the low-to-moderate anxiety group. Emotion regulation difficulties relating to emotional non-acceptance were higher for the stable moderate-to-high anxiety group than for the moderate-to-high anxiety group that experience symptom improvement over time.

Conclusions

These findings may have clinical implications for discharge planning. Future studies should explore emotion regulation with a focus on non-acceptance of one's emotional experiences as a potential target of intervention in individuals with elevated anxiety.

Expressive suppression mediates the relationship between sleep quality and generalized anxiety symptomology

Anxiety disorders are the most prevalent worldwide mental health disorder, resulting in high societal costs. Emotion regulation and sleep quality are associated with the development of psychopathologies including anxiety. However, it is unknown whether habitual emotion regulation strategy use can mediate the influence of sleep quality on anxiety symptomology. An opportunity sample in a healthy population completed the Pittsburgh Sleep Quality Index to provide a measure of sleep quality, the Emotion Regulation Questionnaire to assess habitual use of emotion regulation strategies, and the Generalized Anxiety Disorder Scale to record anxiety symptomology. Data were analysed using correlation and regression-based mediation analyses. Improved sleep quality was predictive of reduced habitual use of expressive suppression and reduced anxiety symptomology. Additionally, increased use of expressive suppression was predictive of greater anxiety symptomology. Cognitive reappraisal was not associated with sleep quality or anxiety severity. Further, novel findings using mediation analyses show that expressive suppression partially mediated the relationship between sleep quality and anxiety. Whilst longitudinal and experimental research are needed to establish causality, these findings suggest that simultaneously targeting improvements in sleep quality and the use of specific emotion regulation strategies, including expressive suppression, may improve the efficacy of interventions focussed on reducing anxiety-related symptomology.

An investigation into the abnormal dynamic connection mechanism of generalized anxiety disorders based on non-homogeneous Markov models

BACKGROUND

The dynamic and hierarchical nature of the functional brain network. The neural dynamical systems tend to converge to multiple attractors (stable fixed points or dynamical states) in long run. Little is known about how the changes in this brain dynamic "long-term" behavior of the connectivity flow of brain network in generalized anxiety disorder (GAD).

METHODS

This study recruited 92 patients with GAD and 77 healthy controls (HC). We applied a reachable probability approach combining a Non-homogeneous Markov model with transition probability to quantify all possible connectivity flows and the hierarchical structure of brain functional systems at the dynamic level and the stationary probability vector (10-step transition probabilities) to describe the steady state of the system in the long run. A random forest algorithm was conducted to predict the severity of anxiety.

RESULTS

The dynamic functional patterns in distributed brain networks had larger possibility to converge in bilateral thalamus, posterior cingulate cortex (PCC), right superior occipital gyrus (SOG) and smaller possibility to converge in bilateral superior temporal gyrus (STG) and right parahippocampal gyrus (PHG) in patients with GAD compared to HC. The abnormal transition probability pattern could predict anxiety severity in patients with GAD.

LIMITATIONS

Small samples and subjects taking medications may have influenced our results. Future studies are expected to rule out the potential confounding effects.

CONCLUSION

Our results have revealed abnormal dynamic neural communication and integration in emotion regulation in patients with GAD, which give new insights to understand the dynamics of brain function of patients with GAD.

Emotional Regulation as a Transdiagnostic Process of Emotional Disorders in Therapy: A Systematic Review and Meta-Analysis

CONTEXT

Several studies have shown that emotional regulation (ER) is a transdiagnostic construct of emotional disorders. Therefore, if therapy improves ER, it would improve psychological distress.

OBJECTIVE

This review assesses and compares the changes in ER due to psychological treatment in different therapies.

METHODS

A systematic review and meta-analysis of RCTs published in the databases PubMed, PsycINFO and Web of Science was performed. It was registered in PROSPERO under the number CRD42023387317. Two independent experts in the field reviewed the articles.

RESULTS

A total of 18 articles met the criteria for inclusion in the review. Analysis of these studies suggests that in unified protocol (UP), cognitive behaviour therapy, dialectical behaviour therapy (DBT) and mindfulness, there is evidence to support that a moderate effect occurs during treatment. Furthermore, in mindfulness and DBT, the effect was moderate in the follow-up period, while in UP, it was high.

LIMITATIONS

Given the heterogeneity of the applied interventions and the methodological limitations found in the reviewed trials, the results should be interpreted with caution.

CONCLUSIONS

UP, cognitive behaviour therapy, DBT and mindfulness can improve ER after therapy, while UP, DBT and mindfulness in the follow-up period. Other therapies, such as SKY or Flotation REST, require more research.

Specific emotion regulation difficulties and executive function explain the link between worry and subsequent stress: A prospective moderated mediation study

BACKGROUND

Worry is a transdiagnostic risk factor for stress-related mental health complaints such as anxiety, depression, and insomnia. Although worry may function as a form of avoidance of unwanted emotions and accordingly interfere with adaptive emotion regulation, the specific domains of emotion regulation that are perturbed by excessive worry to confer risk for stress-related symptoms are unclear. Further, it is unknown if cognitive control mechanisms that underlie successful emotion regulation influence the effect of worry on stress. The present study addressed these gaps in the literature by examining specific emotion regulation difficulties as mediators of the relationship between worry and subsequent stress, as well as executive function as a moderator of the mediated effects.

METHOD

656 community adults were assessed for trait worry, emotion dysregulation, stress, and executive dysfunction once per month for three months (time 1 - time 3).

RESULTS

The effect of worry (time 1) on subsequent stress (time 3) was partially mediated by difficulties with emotional clarity and difficulty engaging in goal-directed behavior when upset (time 2) after controlling for age, gender, and baseline stress. Moderated mediation models revealed that the indirect effect of worry on stress via difficulty with goal-directed behavior was significantly moderated by executive dysfunction, such that fewer executive function difficulties acted as a buffer against the harmful effects of worry.

LIMITATIONS

Limitations include reliance on self-report measures, lack of experimental manipulation, and a nonclinical sample.

CONCLUSIONS

Findings point to specific domains of emotion regulation as treatment targets for individuals with high worry proneness.

Psychotherapies for Generalized Anxiety Disorder in Adults: A Systematic Review and Network Meta-Analysis of Randomized Clinical Trials

Importance

Generalized anxiety disorder (GAD) is one of the most common mental disorders in adults. Psychotherapies are among the most recommended treatments for GAD, but which should be considered as first-line treatment needs to be clarified.

Objective

To use a network meta-analysis to examine the short- and long-term associations of different psychotherapies with outcomes of effectiveness and acceptability in adults with GAD.

Data Sources

MEDLINE, Embase, PsycINFO, and the Cochrane Register of Controlled Trials were searched from database inception to January 1, 2023, to identify randomized clinical trials (RCTs) of psychotherapies for adults with GAD.

Study Selection

RCTs comparing any type of psychotherapy against another or with a control condition for the treatment of adults (≥18 years, both sexes) with a primary diagnosis of GAD were eligible for inclusion.

Data Extraction and Synthesis

This study followed Cochrane standards for extracting data and assessing data quality and used the PRISMA guideline for reporting. Risk of bias of individual studies was assessed using the second version of the Cochrane risk of bias tool, and the Confidence in Network Meta-Analysis was used to rate the certainty of evidence for meta-analytical results.

Main Outcomes and Measures

Eight psychotherapies were compared against one another and with 2 control conditions. Primary outcomes were severity of GAD symptoms and acceptability of the psychotherapies. Random-effects model pairwise and network meta-analyses were conducted. For effectiveness, standardized mean differences (SMDs) were pooled, and for acceptability, relative risks with 95% CIs were calculated.

Results

Data from 65 RCTs were included. Effect size estimates on data from 5048 participants (mean [SD], 70.9% [11.9%] women; mean [SD] age, 42.2 [12.5] years) suggested that third-wave cognitive behavior therapies (CBTs) (SMD, -0.76 [95% CI, -1.15 to -0.36]; certainty, moderate), CBT (SMD, -0.74 [95% CI, -1.09 to -0.38]; certainty, moderate), and relaxation therapy (SMD, -0.59 [95% CI, -1.07 to -0.11]; certainty, low) were associated with reduced GAD symptoms vs treatment as usual. Relative risks for all-cause discontinuation (indication of acceptability) signaled no differences compared with treatment as usual for all psychotherapies (eg, relative risk, 1.04 [95% CI, 0.64-1.67] for CBT vs treatment as usual). When excluding studies at high risk of bias, relaxation therapy lost its superiority over treatment as usual (SMD, -0.47; 95% CI, -1.18 to 0.23). When considering anxiety severity at 3 to 12 months after completion of the intervention, only CBT remained significantly associated with greater effectiveness than treatment as usual (SMD, -0.60; 95% CI, -0.99 to -0.21).

Conclusions and Relevance

Given the evidence in this systematic review and network meta-analysis for its associations with both acute and long-term effectiveness, CBT may represent the first-line therapy of GAD. Third-wave CBTs and relaxation therapy were associated with short-term effectiveness and may also be offered.

A systematic review and meta-analysis of transdiagnostic cognitive behavioural therapies for emotional disorders

Transdiagnostic cognitive behavioural psychotherapy (TD-CBT) may facilitate the treatment of emotional disorders. Here we investigate short- and long-term efficacy of TD-CBT for emotional disorders in individual, group and internet-based settings in randomized controlled trials (PROSPERO CRD42019141512). Two independent reviewers screened results from PubMed, MEDLINE, PsycINFO, Google Scholar, medRxiv and OSF Preprints published between January 2000 and June 2023, selected studies for inclusion, extracted data and evaluated risk of bias (Cochrane risk-of-bias tool 2.0). Absolute efficacy from pre- to posttreatment and relative efficacy between TD-CBT and control treatments were investigated with random-effects models. Of 56 identified studies, 53 (6,705 participants) were included in the meta-analysis. TD-CBT had larger effects on depression (g = 0.74, 95% CI = 0.57-0.92, P < 0.001) and anxiety (g = 0.77, 95% CI = 0.56-0.97, P < 0.001) than did controls. Across treatment formats, TD-CBT was superior to waitlist and treatment-as-usual. TD-CBT showed comparable effects to disorder-specific CBT and was superior to other active treatments for depression but not for anxiety. Different treatment formats showed comparable effects. TD-CBT was superior to controls at 3, 6 and 12 months but not at 24 months follow-up. Studies were heterogeneous in design and methodological quality. This review and meta-analysis strengthens the evidence for TD-CBT as an efficacious treatment for emotional disorders in different settings.

Emotion Dysregulation and E-Cigarette Expectancies among College Student E-Cigarette Users

Background: E-cigarette outcome expectancies (i.e., beliefs about the expected consequences of e-cigarette use) are a key factor in motivating use. Emotion regulation difficulties have demonstrated significant associations with outcome expectancies; however, there has yet to be an examination of associations between specific emotion regulation difficulties and specific e-cigarette outcome expectancies, which could serve as targets for intervention efforts. Therefore, the current study sought to examine the unique predictive ability of specific emotion regulation difficulties in terms of e-cigarette outcome expectancies. Methods: Participants were 116 college student e-cigarette users (Mage = 19.72, SD = 1.88; 71.6% female) who completed self-report questionnaires for course credit. Results: Greater difficulties engaging in goal-directed behavior when experiencing negative emotions and fewer difficulties accessing effective emotion regulation strategies were associated with positive reinforcement outcome expectancies. Greater emotion regulation difficulties in general were also associated with negative reinforcement outcome expectancies, though there were no significant individual predictors. Conclusion: These results suggest that greater emotion regulation difficulties are associated with mood-related e-cigarette outcome expectancies, and targeting emotion regulation difficulties, particularly difficulty engaging in goal-directed behavior when upset, may be useful to incorporate into intervention efforts.

Toward a synthesis of cognitive behaviour therapy via component analysis of self-regulation

The cognitive behavioural therapies (CBTs) are the choice psychotherapies for many clinicians treating a wide range of adult psychological disorders including various anxieties, mood, substance use, eating, schizophrenia and personality-related. Empirical research in the CBTs is ever increasing, and the accumulating evidence supporting efficacious treatments is substantial and well documented. However, with prolific research comes a seemingly accelerating and worrying trend of purportedly different therapies, and numerous hybrids and combinations of therapies and techniques. For many clinicians this is increasingly confusing and not helpful in clinical practice. This article is a critique of current trends and directions in clinical research, which show signs of limited effectiveness, fragmentation, and obfuscation. An alternative strategy is proposed-examining transdiagnostic therapeutic effects, which appear related to treating pervasive dysregulated emotions, with component analyses of four principal self-regulation components (viz., self-monitoring; functional analysis; identifying values, goals and treatment-plans; and feedback). Such a strategy is likely to lead to a more coherently synthesized and effective CBT.

In situ fNIRS measurements during cognitive behavioral emotion regulation training in rumination-focused therapy: A randomized-controlled trial

Repetitive negative thinking (RNT), including rumination, plays a key role in various psychopathologies. Although several psychotherapeutic treatments have been developed to reduce RNT, the neural correlates of those specific treatments and of psychotherapy in general are largely unknown. Functional near-infrared spectroscopy (fNIRS) offers the potential to investigate the neural correlates of psychotherapeutic techniques in situ. Therefore, in this study we investigated the efficacy and neural correlates of a fNIRS adapted Mindfulness-based Emotion Regulation Training (MBERT) for the treatment of depressive rumination in 42 subjects with major depressive disorder (MDD) in a cross-over designed randomized controlled trial. Using psychometric measures, subjective ratings and fNIRS, we analyzed in situ changes in depressive symptom severity, ruminative thoughts and cortical activity in the Cognitive Control Network (CCN). Our results show that MBERT is effective in treating depressive symptoms and rumination. On a neural level, we found consistently higher cortical activation during emotion regulation training compared to control trials in the bilateral inferior frontal gyrus (IFG) and dorsolateral prefrontal cortex (DLPFC). Furthermore, cortical oxygenation decreased from session to session in the bilateral DLPFC. The relevance of the results for the psychotherapeutic treatment of MDD as well as further necessary investigations are discussed.

Reducing cognitive arousal and sleep effort alleviates insomnia and depression in pregnant women with DSM-5 insomnia disorder treated with a mindfulness sleep program

Objectives

Combining mindfulness with behavioral sleep strategies has been found to alleviate symptoms of insomnia and depression during pregnancy, but mechanisms for this treatment approach remain unclear. The present study examined nocturnal cognitive arousal and sleep effort as potential treatment mechanisms for alleviating insomnia and depression via a mindfulness sleep program for pregnant women.

Methods

Secondary analysis from a proof-of-concept trial of 12 pregnant women with DSM-5 insomnia disorder who were treated with Perinatal Understanding of Mindful Awareness for Sleep (PUMAS), which places behavioral sleep strategies within a mindfulness framework. Data were collected across eight weekly assessments: pretreatment, six sessions, and posttreatment. Measures included the insomnia severity index (ISI), Edinburgh postnatal depression scale (EPDS), pre-sleep arousal scale's cognitive factor (PSASC), and the Glasgow sleep effort scale (GSES). We used linear mixed modeling to test cognitive arousal and sleep effort as concurrent and prospective predictors of insomnia and depression.

Results

Most patients reported high cognitive arousal before PUMAS (75.0%), which decreased to 8.3% after treatment. All insomnia remitters reported low cognitive arousal after treatment, whereas half of nonremitters continued reporting high cognitive arousal. Both nocturnal cognitive arousal and sleep effort were associated with same-week changes in insomnia throughout treatment, and sleep effort yielded a prospective effect on insomnia. Lower levels of nocturnal cognitive arousal and sleep effort prospectively predicted reductions in depression.

Conclusions

The present study offers preliminary evidence that reducing sleep effort and nocturnal cognitive arousal may serve as key mechanisms for alleviating insomnia and depression via mindfulness-based insomnia therapy. ClinicalTrials.gov ID: NCT04443959.

Enhancing emotion regulation

BACKGROUND

Emotion regulation (ER) refers to the process of modulating an affective experience or response. Objectives: This is a systematic review of the research on therapist methods to facilitate patient ER, including affect-focused, experiential methods that aim to enhance immediate patient emotion regulation, and structured psychoeducation, skills training in ER.

METHOD

A total of 10 studies of immediate and intermediate outcomes of emotion regulation methods were examined. A total of 38 studies were included in the meta-analysis of distal treatment effects on emotion regulation.

RESULTS

In eight studies with 84 clients and 33 therapists, we found evidence of positive intermediate outcomes for affect-focused therapist methods and interpretations. A meta-analysis of 26 studies showed that the average effect size of ER methods from pre- to post-treatment was large (g = 0.82).

CONCLUSIONS

Both affect-focused and structured skill training are associated with distal improvements in emotion regulation. When working with ER in psychotherapy, therapists must consider how patients' cultural backgrounds inform display rules, as well as what might be considered adaptive or maladaptive. The article concludes with training implications and therapeutic practices based on the research evidence.

Examining the associations between difficulties in emotion regulation and symptomatic outcome measures among individuals with different mental disorders

Background

Difficulties in emotion regulation (ER) abilities have been found to play a central role in different psychiatric disorders. However, researchers rarely compare ER across different diagnostic groups. In the current study, we examined ER and its relation to functional and symptomatic outcome among three distinct diagnostic groups: people with schizophrenia (SCZ), people with emotional disorders (EDs; i.e., depression and/or anxiety), and individuals without any psychiatric diagnosis (controls).

Methods

Participants in this study comprised 108 adults who requested psychotherapy at a community clinic in the year 2015 and between 2017 and 2019. Clients were interviewed and filled out questionnaires measuring depression, distress, and difficulties in ER abilities.

Results

Results showed that individuals with psychiatric diagnoses reported higher levels of difficulties in ER abilities than did controls. Moreover, there were very few differences in levels of ER difficulty between SCZ and EDs. Further, the associations between maladaptive ER and psychological outcomes were significant in each diagnostic group, and especially for SCZ.

Conclusion

Our study indicates that difficulties in ER abilities partially have a transdiagnostic nature, and that these difficulties are associated with psychological outcomes among both clinical populations and controls. There were very few differences in levels of ER ability difficulties between SCZ and EDs, suggesting that the two groups share difficulties in relating and responding to emotional distress. The associations between difficulties in ER abilities and outcome were more robust and stronger among SCZ than the other groups, highlighting the potential contribution of targeting ER abilities in the treatment of schizophrenia.

"Managing emotion": Open label trial and waitlist controlled trial of an emotion regulation program for university students

Background: More than one-third of university students meet diagnostic criteria for a mental disorder, and three quarters experience role impairment in some aspect of their life. One determinant of whether young adults will experience mental health difficulties is their ability to regulate emotion. We conducted two pilot trials of a brief online program designed to teach emotion regulation skills to university students. Methods: In Study 1, we conducted an open-label trial (n = 104). In Study 2, we conducted a waitlist controlled trial (n = 167). In both studies, pre- and post-assessment of emotion regulation, psychological distress, and self-compassion were conducted. Results: In both trials, we observed improvements in emotion regulation, and reductions in symptoms of psychological distress. Acceptability and feasibility were also satisfactory. Conclusion: An online emotion regulation program may offer promise in improving emotion regulation and subsequent mental health concerns among university students. (ACTRN12620000390987; ACTRN12620000839909).

Neural mechanisms of aberrant self-referential processing in patients with generalized anxiety disorder

Massive theoretical studies in clinical psychology have implicated the self in understanding internalizing disorders (i.e., anxiety and mood disorders), in which self-related tasks were frequently used to investigate internalizing psychopathology. As one of the most frequently seen internalizing disorder in primary care, patients with generalized anxiety disorder (GAD) are characterized by inappropriate self-related processing such as negative self-referential thinking. However, relevant neural mechanisms remain unknown. In this study, participants underwent a self-related task which they were presented with several positive and negative trait words and were required to judge the extent to which these traits matched themselves when compared to their average peers. Aberrant brain activation and functional connectivity of GAD were detected during processing positive and negative traits. Compared to healthy controls (HCs), patients with GAD exhibited abnormal self-processing which manifested as lower biased self-rating scores particularly for negative traits and weaker brain activity in the left dorsomedial prefrontal cortex, inferior frontal gyrus, superior temporal sulcus (STS), and bilateral lingual gyrus when processing trait words. Abnormal functional connections between these hypoactive regions and regions associated with reward, emotion, and theory of mind were observed in subsequent psychophysiological interaction analysis. An attenuation of connectivity between the left insula and left STS was associated with greater severity of anxiety symptom in GAD patients. These findings provide insight into the abnormal neurocognitive mechanisms of biased self-related processing in GAD patients, which involves distorted self-schema accompanied by abnormal activation and functional connections of regions implicated in self-related and social cognition processing.

A randomized controlled trial of emotion regulation therapy for cancer caregivers: A mechanism-targeted approach to addressing caregiver distress

BACKGROUND

Caregivers of patients with cancer play a crucial role in the health of the person they care for, and in the healthcare system at large. Family caregivers receive minimal support, despite being at greater risk for anxiety and depression than patients themselves. Cognitive behavioral therapy (CBT), an effective therapy for anxiety and depression, has shown mixed efficacy when delivered to cancer caregivers. Emotion Regulation Therapy (ERT), a contemporary CBT, may uniquely target processes underlying distress associated with caregiving. Therefore, we adapted both CBT and ERT to target the needs of caregivers (i.e., CBT-C and ERT-C) and are conducting a multi-site randomized trial to examine the comparative efficacy of these interventions.

METHODS

Family cancer caregivers (n = 200) reporting distress related to caregiving are recruited from two academic cancer centers and randomly assigned to either ERT-C or CBT-C. Caregivers in both interventions engage in eight weekly one-hour sessions by videoconference with a trained interventionist. Caregiver participants complete study assessments at baseline, post-treatment, 3-and 6-months follow-up. Patients of each caregiver can also enroll in the study and complete assessments at baseline and 3-months follow-up. Outcome measures include psychosocial constructs such as anxiety, depression, quality of life, as well as proposed mechanistic constructs and salivary markers of stress and inflammation.

CONCLUSIONS

The results of this study will advance the science of caregiving interventions in cancer by addressing a critical gap in our ability to mitigate anxiety and depression in caregivers, as well as further our understanding of how these changes may influence patients' outcomes.

Generalized Anxiety Disorder: Does the Emotion Dysregulation Model Predict Symptoms Beyond the Metacognitive Model?

While the Metacognitive Model (MCM) of generalized anxiety disorder (GAD) is well-established, the Emotion Dysregulation Model (EDM) of GAD has received less attention. This study examined whether the EDM helps explain GAD above and beyond the MCM. The influence of gender was also explored. A non-clinical university sample (N = 626) completed measures of GAD symptoms, worry severity, the MCM, and the EDM. In support of the EDM, it was found that fear of depression predicted GAD symptoms for men, while fear of anxiety predicted GAD symptoms for women. However, across genders, the strongest predictor of GAD symptoms and worry severity was negative beliefs about worry. While these findings support the MCM view that holding the beliefs that worry is harmful and dangerous is the strongest predictor of GAD overall, incorporating aspects of the EDM into our understanding and treatment of GAD may be beneficial.

Supplementary Information

The online version contains supplementary material available at 10.1007/s10942-022-00479-7.

Psychotherapeutic treatments for generalized anxiety disorder: cognitive and behavioral therapies, enhancement strategies, and emerging efforts

INTRODUCTION

Generalized anxiety disorder (GAD) is common and disabling. Different versions of cognitive behavioral therapy (CBT) have been tested, but no treatment works for everyone. Therefore, researchers have attempted approaches to enhance CBT.

AREAS COVERED

The current narrative review examines meta-analyses and individual trials of CBT-based treatments for GAD. We focus on CBT and its cognitive and behavioral components as well as efforts to enhance CBT and its dissemination and generalizability. Enhancement efforts included interpersonal and emotional processing therapy, mindfulness-based CBT, emotion regulation therapy, intolerance of uncertainty therapy, the unified protocol, metacognitive therapy, motivational interviewing, and contrast avoidance targeted treatment. Emerging strategies to enhance dissemination have focused on technologically based treatments. Attempts at generalizability have included examination of efficacy within diverse racial and ethnic groups.

EXPERT OPINION

We conclude that CBT is efficacious, and a number of enhancement efforts have shown some promise in improving upon CBT in single trials. However, more research is needed, particularly efforts to determine which enhancements work best for which individuals and what are the mechanisms of change. Furthermore, few technological interventions have been compared to active treatments. Finally, much more attention needs to be paid to ethnic and racial diversity in randomized controlled trials.

Deconstructing emotion regulation in schizophrenia: the nature and consequences of abnormalities at the identification stage

Existing evidence suggests that emotion regulation is abnormal in schizophrenia and associated with undesirable clinical outcomes. However, this literature is based predominantly on trait self-report and does not indicate which stages of emotion regulation (identification, selection, implementation) are impaired. The current study focused on determining the nature of abnormalities at the identification stage using ecological momentary assessment (EMA). Participants included clinically stable outpatients with schizophrenia (SZ; n = 48) and healthy controls (CN; n = 52) who completed 6 days of EMA. The EMA surveys assessed emotional experience, emotion regulation, and symptoms. Results indicated that SZ identified the need to regulate at a higher rate than CN. Specifically, SZ displayed an inefficient threshold for identifying the need to regulate, such that they regulated too much when negative affect was low and too little when negative affect was high. Emotion regulation effort exertion was also inefficient, such that effort was too high at low levels of negative affect and too low at high levels of negative affect in SZ. These identification stage abnormalities also demonstrated differential associations with positive and negative symptoms. Findings suggest that identification stage abnormalities may create a bottleneck that feeds forward and impacts subsequent stages of emotion regulation in SZ that are critically related to symptoms. Targeting the psychological processes underlying these identification stage abnormalities might offer a novel means of treating positive and negative symptoms in schizophrenia.

Emotion Regulation as a Moderator of Outcomes of Transdiagnostic Group Cognitive-Behavioral Therapy for Emotional Disorders

The aim of this study was to examine the potential moderating effect of baseline emotion regulation skills-cognitive reappraisal and expressive suppression-on the relationship between treatment allocation and treatment outcomes in primary care patients with emotional symptoms. A total of 631 participants completed scales to evaluate emotion regulation, anxiety, depression, functioning, and quality of life (QOL). The moderation analysis was carried out using the SPSS PROCESS macro, version 3.5. Expressive suppression was a significant moderator in the relationship between treatment allocation and treatment outcomes in terms of symptoms of anxiety (b = -0.530, p = .026), depression (b = -0.812, p = .004), and QOL (b = 0.156, p = .048). Cognitive reappraisal acted as a moderator only in terms of QOL (b = 0.217, p = .028). The findings of this study show that participants with higher scores of expressive suppression benefited more from the addition of transdiagnostic cognitive-behavioral therapy to treatment as usual (TAU) in terms of anxiety and depressive symptoms, and QOL. Individuals with higher levels of cognitive reappraisal obtained a greater benefit in terms of QOL from the addition of psychological treatment to TAU. These results underscore the relevant role that emotion regulation skills play in the outcomes of psychological therapy for emotional symptoms.

Decentering predicts attenuated perseverative thought and internalizing symptoms following stress exposure: A multi-level, multi-wave study

While research identifies a growing list of risk factors for anxiety and depression, it is equally important to identify potential protective factors that may prevent or reduce vulnerability to developing internalizing psychopathology. We hypothesized that forms of perseverative thinking, such as rumination and worry, act as mechanisms linking negative life experiences and prospective symptoms of anxiety and depression. More specifically, we investigated whether decentering, the meta-cognitive capacity to adopt a distanced perspective toward one's thoughts and feelings, serves as a protective factor at various points along this mediational pathway. A sample of 181 undergraduate students were recruited and assessed at five time points over a 12-week period. Multilevel modeling indicated that decentering was associated with an attenuated impact of (1) negative events on prospective depressive symptoms; (2) negative events on prospective brooding, and (3) brooding, pondering and worry on prospective internalizing symptoms. Multilevel moderated mediation analyses provided partial support for the hypothesis that perseverative thinking would mediate the longitudinal associations between negative life events and internalizing symptoms, with decentering attenuating risk at several connections of the indirect pathways. The strongest support was provided for moderated mediation models in which decentering was associated with attenuated relationships between negative events, brooding, and symptoms of depression. This study is the first to elucidate the role of decentering as a protective factor against anxiety and depressive symptoms at different points in the path from stress to perseverative thought to internalizing symptoms. Decentering therefore may be a critical target for clinical intervention to promote resilience against anxiety and depression.

Examining Patient Feedback and the Role of Cognitive Arousal in Treatment Non-response to Digital Cognitive-behavioral Therapy for Insomnia during Pregnancy

OBJECTIVE

Insomnia affects over half of pregnant and postpartum women. Early evidence indicates that cognitive-behavioral therapy for insomnia (CBTI) improves maternal sleep and mood. However, standard CBTI may be less efficacious in perinatal women than the broader insomnia population. This study sought to identify patient characteristics in a perinatal sample associated with poor response to CBTI, and characterize patient feedback to identify areas of insomnia therapy to tailor for the perinatal experience.

PARTICIPANTS

Secondary analysis of 46 pregnant women with insomnia symptoms who were treated with digital CBTI in a randomized controlled trial.

METHODS

We assessed insomnia, cognitive arousal, and depression before and after prenatal treatment, then 6 weeks postpartum. Patients provided feedback on digital CBTI.

RESULTS

Residual cognitive arousal after treatment was the most robust factor associated with treatment non-response. Critically, CBTI responders and non-responders differed on no other sociodemographic or pretreatment metrics. After childbirth, short sleep (<6 hrs/night) was associated with maternal reports of poor infant sleep quality. Patient feedback indicated that most patients preferred online treatment to in-person treatment. Although women described digital CBTI as convenient and helpful, many patients indicated that insomnia therapy would be improved if it addressed sleep challenges unique to pregnancy and postpartum. Patients requested education on maternal and infant sleep, flexibility in behavioral sleep strategies, and guidance to manage infant sleep.

CONCLUSIONS

Modifying insomnia therapy to better alleviate refractory cognitive arousal and address the changing needs of women as they progress through pregnancy and early parenting may increase efficacy for perinatal insomnia.Name: Insomnia and Rumination in Late Pregnancy and the Risk for Postpartum DepressionURL: clinicaltrials.govRegistration: NCT03596879.

Review of Perioperative Music Medicine: Mechanisms of Pain and Stress Reduction Around Surgery

Clinical-experimental considerations and an approach to understanding the autonomic basis of improved surgical outcomes using Perioperative Music Medicine (PMM) are reviewed. Combined surgical, psycho-physiological, and experimental perspectives on Music Medicine (MM) and its relationship to autonomic nervous system (ANS) function are discussed. Considerations are given to the inter-related perioperative effects of MM on ANS, pain, and underlying vagal and other neural circuits involved in emotional regulation and dysregulation. Many surgical procedures are associated with significant pain, which is routinely treated with post-operative opioid medications, which cause detrimental side effects and delay recovery. Surgical trauma shifts the sympathetic ANS to a sustained activation impairing physiological homeostasis and causing psychological stress, as well as metabolic and immune dysfunction that contribute to postoperative mortality and morbidity. In this article, we propose a plan to operationalize the study of mechanisms mediating the effects of MM in perioperative settings of orthopedic surgery. These studies will be critical for the implementation of PMM as a routine clinical practice and to determine the potential limitations of MM in specific cohorts of patients and how to improve the treatment.

Preliminary Efficacy of an Emotion Regulation Intervention on Physical Activity and Depressive and Anxious Symptoms in Individuals in Cardiac Rehabilitation

BACKGROUND

For the 720 000 Americans expected to experience a new acute cardiac event this year, cardiac rehabilitation is an important part of recovery. Symptoms of depression and anxiety undermine recovery efforts, leaving recovering patients at risk for diminished functional capacity and heightened risk of mortality. Poor emotion regulation can worsen symptoms of depression and anxiety and hinder recovery efforts.

OBJECTIVE

The purpose of this randomized controlled trial was to evaluate the early efficacy testing of a theoretically based emotion regulation treatment (Regulating Emotions to Improve Self-management of Nutrition, Exercise, and Stress [RENEwS]) designed to assist survivors of an acute cardiac event in cardiac rehabilitation to optimize recovery.

METHODS

Survivors of an acute cardiac event in cardiac rehabilitation (n = 30, 83% men) were randomized to five 1-hour in-person group sessions of RENEwS or a phone-based attention-control group. Participants completed measures of depression and anxiety symptoms at 3 time points. Moderate to vigorous physical activity (MVPA) was objectively measured for 7 days at each time point using waist-worn actigraphy monitors. Between-group differences were calculated using analysis of variance with Cohen f effect sizes calculated to evaluate initial efficacy.

RESULTS

There was no statistically significant difference in depression, anxiety, or MVPA over time based on group assignment (all P > .05). Compared with attention control participants, in RENEwS participants, preliminary effects showed greater reductions in depression (Cohen f = 0.34) and anxiety (Cohen f = 0.40) symptoms but only modest improvements in MVPA from baseline to 5 months (Cohen f = 0.08).

CONCLUSIONS

Findings show that RENEwS is a promising emotion regulation intervention to enhance cardiac rehabilitation and potentially decrease symptoms of depression and anxiety.

Expressive suppression and rumination mediate the relationship between frailty and depression among older medical inpatients

OBJECTIVE

Frailty is common among older medical inpatients and has been found to be an independent risk factor for depression. However, few studies have explored the underlying mechanisms of the frailty-depression relationship. The present study was aimed to examine emotional regulation strategies as mediators in the frailty-depression relationship based on the process model of emotional regulation.

METHODS

Older medical inpatients (N=684) completed questionnaires and tests on frailty, emotional regulation strategies, and depressive symptoms.

RESULTS

Structural equation models showed that expressive suppression and rumination, but not cognitive reappraisal, mediated the relationship between frailty and depressive symptoms (RMSEA = 0.059, CFI = 0.963, TLI = 0.957).

CONCLUSIONS

Frail older medical inpatients habitually use expressive suppression and rumination in their daily lives, which may lead to more psychological disturbance. Interventions targeting expressive suppression and rumination might be effective in reducing the detrimental effect of frailty on psychological well-being among older medical inpatients.

Cognitive Behavior Therapy Targeting Intolerance of Uncertainty Versus Selective Serotonin Reuptake Inhibitor for Generalized Anxiety Disorder: A Randomized Clinical Trial

Given the high prevalence and adverse outcomes associated with generalized anxiety disorder (GAD), development and expansion of effective treatment modalities are important. The present study compared the effectiveness of cognitive behavior therapy targeting intolerance of uncertainty (CBT-IU) and selective serotonin reuptake inhibitors (SSRIs) for treating GAD. A total of 30 Iranian patients with GAD (Mage = 25.16 ± 6.73) were randomised to receive either CBT-IU (n = 15) or SSRI (n = 15). Measures included the Structured Clinical Interview for DSM-5 (SCID-5), Penn State Worry Questionnaire (PSWQ), Why Worry-II (WW-II), Intolerance of Uncertainty Scale (IUS), and Negative Problem Orientation Questionnaire (NPOQ). Repeated measures analysis of variance tested differential treatment outcomes. The results of intention-to-treat (ITT) analysis indicated that although both CBT-IU and SSRI were effective treatments for GAD, CBT-IU produced significantly better results than SSRI at post-treatment. This clinical trial provides preliminary cross-cultural support for the treatment of GAD using CBT-IU, with findings suggesting that this non-medication intervention reduces GAD symptoms.

Moderators and mediators of emotion regulation therapy for psychologically distressed caregivers of cancer patients: secondary analyses from a randomized controlled trial

BACKGROUND

Being an informal caregiver (IC) of a cancer patient is often associated with psychological distress. We have recently, in a randomized controlled trial (RCT), demonstrated efficacy of Emotion Regulation Therapy for ICs (ERT-C), evidenced as lower levels of psychological distress. Such efficacy demonstration is important, but a crucial step in improving treatments for the IC population is the identification of moderators (i.e., for whom the treatment works) and mediators (i.e., the drivers of the detected effect).

MATERIAL AND METHODS

In a sample of 65 psychologically distressed ICs (combining participants who received immediate and delayed treatment in the RCT); we investigated age, gender, and homework completion as moderators of treatment outcome. Proposed mediators were derived from the ERT model and included mindfulness, emotion regulation dysfunction, decentering, and cognitive reappraisal.

RESULTS AND CONCLUSIONS

The strongest moderation effect was found for homework completion, predicting improvements on psychological distress. Correlational mediation analyses generally supported the ERT model. However, temporal precedence was only established for the association between decentering and worry, where a bidirectional relation was revealed. Homework thus emerged as an important aspect of ERT-C and, albeit a bidirectional relationship, changes in decentering may precede changes in worry. Future trials should ensure the robustness of these results, hone the specificity of process measures, and further investigate the causal timeline of change.

Shame, guilt, and posttraumatic stress symptoms: A three-level meta-analysis

Existing empirical findings are inconsistent on the correlations of shame and guilt with posttraumatic stress symptoms (PTSS). This study aimed to quantitatively summarize the strength of the associations of shame and guilt with PTSS and explore potential moderators. Based on a three-level meta-analytic method, shame was positively correlated with PTSS, no matter whether the effects of guilt were controlled; guilt also had a positive correlation with PTSS, regardless of whether the effects of shame were partialling out. Moderator analyses showed that type of shame measure (generalized vs. contextual vs. trauma-specific shame) moderated the relation between shame and PTSS, and type of guilt measure (generalized vs. contextual vs. trauma-specific guilt) moderated the relation between guilt and PTSS. In addition, culture had a marginally significant moderating effect on the relation between guilt and PTSS, with a stronger association of guilt with PTSS in Western culture than in Eastern culture. These results supported the links of shame and guilt to PTSS and implied that we should focus on the conceptual underpinnings of the manifest psychometric issue and maintain cultural sensitivity in future research. The implications for posttraumatic stress disorder treatment were also discussed.

Emotion regulation therapy for social anxiety disorder: a single case series study

BACKGROUND

Despite the vast majority of evidence indicating the efficacy of traditional and recent cognitive behaviour therapy (CBT) therapies in treating social anxiety disorder (SAD), some individuals with SAD do not improve by these interventions, particularly when co-morbidity is present.

AIMS

It is not clear how emotion regulation therapy (ERT) can improve SAD co-morbid with symptoms of generalized anxiety disorder (GAD) and depression. This study investigated this gap.

METHOD

Treatment efficacy was assessed using a single case series methodology. Four clients with SAD co-occurring with GAD and depression symptoms received a 16-session version of ERT in weekly individual sessions. During the treatment, self-report measures and clinician ratings were used to assess the symptom intensity, model-related variables, and quality of life, work and social adjustment of participants every other week throughout the treatment. Follow-up was also conducted at 1, 2 and 3 months after treatment. Data were analysed using visual analysis, effect size (Cohen's d) and percentage of improvement.

RESULTS

SAD clients with depression and GAD symptoms demonstrated statistically and clinically significant improvements in symptom severity, quality of life, work, social adjustment and model-related measures (i.e. negative emotionality/safety motivation, emotion regulation strategies). The improvements were largely maintained during the follow-up period and increased for some variables.

CONCLUSION

These findings showed preliminary evidence for the role of emotion dysregulation and motivational factors in the aetiology and maintenance of SAD and the efficacy of ERT in the treatment of co-morbid SAD.

From psychological to physical health: Exploring temporal precedence throughout emotion regulation therapy

OBJECTIVE

Generalized anxiety disorder (GAD) is characterized, in part, by physical symptoms such as muscle tension and gastrointestinal (GI) distress. To date, little research has examined how changes in psychological symptoms associated with GAD may impact physical symptoms. This study investigated if reductions in worry, anxiety, and depression precede changes in muscle tension and GI distress throughout psychotherapy.

METHODS

Participants with GAD (N = 85) completed 20 weeks of emotion regulation therapy (ERT) in addition to assessments pre, mid, and post treatment. They completed a physical symptom questionnaire, evaluating muscle tension and GI distress. Participants also completed psychological symptoms questionnaires, including the State Trait Anxiety Inventory (STAI-7), Penn State Worry Questionnaire (PSWQ), and Beck Depression Inventory (BDI-II). Control participants (N = 44) completed these measures at baseline.

RESULTS

Participants with GAD had significantly greater muscle tension (p <  .001) and GI distress (p <  .001) compared to control participants without GAD. Reductions in worry, depression, and trait anxiety did not precede changes in muscle tension (range of effect size (r): .05-.12). Reductions in both depression (p = 0.04) and trait anxiety (p < 0.01) preceded reductions in GI distress. Reductions in worry did not precede reductions in GI distress (p = 0.25).

CONCLUSION

These data provide preliminary evidence for the temporal effect of reductions in psychological symptoms on reductions in GI distress in GAD, highlighting the potential of psychotherapy to improve physical outcomes.

An Emotion Regulation and Impulse Control (ERIC) Intervention for Vulnerable Young People: A Multi-Sectoral Pilot Study

Objective: There is a demonstrated link between the mental health and substance use comorbidities experienced by young adults, however the vast majority of psychological interventions are disorder specific. Novel psychological approaches that adequately acknowledge the psychosocial complexity and transdiagnostic needs of vulnerable young people are urgently needed. A modular skills-based program for emotion regulation and impulse control (ERIC) addresses this gap. The current one armed open trial was designed to evaluate the impact that 12 weeks exposure to ERIC alongside usual care had on young people's ability to regulate emotions, as well as examine potential moderating mechanisms. Methods: Seventy nine young people (50.6% male; M = 19.30; SD = 2.94) were enrolled to the 12 week intervention period. Twenty one practitioners from youth and community health services delivered relevant ERIC modules adjunct to usual care. Linear mixed effects regression (with random intercept) was used to examine change over time across the primary outcome of emotion dysregulation and secondary outcomes of depression, anxiety, stress, experiential avoidance and mindfulness. Moderation analyses were conducted to test whether the magnitude of change in emotion dysregulation moderated change over time in secondary outcomes. Results: Analyses revealed significant improvement in the primary outcome of emotion dysregulation with a moderate effect size (Mean Change = -10.24, 95% CI (-14.41, -6.06; Cohen's dav = -0.53), in addition to decreases in the secondary outcomes of depression, anxiety, stress and experiential avoidance. No improvements in mindfulness were reported. Moderation analyses revealed that the residualised change over time in emotion dysregulation moderated the change over time in symptoms of distress, depression, anxiety, stress, experiential avoidance, and mindfulness. Conclusion: Reductions in the severity of emotion dysregulation, depression, anxiety, stress and experiential avoidance are promising, and were evident despite the complexity of the participants and the diversity of the service setting. The improvements found in each outcome were only observed for those young people whose emotion regulation also improved, providing preliminary evidence for the role of emotion regulation as a key treatment target in this population.

REMOTION Blended Transdiagnostic Intervention for Symptom Reduction and Improvement of Emotion Regulation in an Outpatient Psychotherapeutic Setting: Protocol for a Pilot Randomized Controlled Trial

BACKGROUND

Emotion regulation has been identified as an important transdiagnostic factor relevant to the treatment of mental health disorders. Many empirically validated psychotherapeutic treatments incorporate elements targeting emotion regulation. Most of these treatment approaches are conceptualized as standard face-to-face treatments not as blended treatments, which include an internet-based intervention.

OBJECTIVE

The aim of this study is to examine, for the first time, a new internet-based intervention-REMOTION-that will be provided transdiagnostically, as an add-on to psychotherapy, to provide a blended treatment format.

METHODS

A total of 70 participants will be assigned (1:1 allocation ratio) to either the intervention group (REMOTION + psychotherapy) or the treatment-as-usual group that receives psychotherapy alone. To maximize external validity, a typical outpatient treatment sample of patients diagnosed with a range of disorders such as depression, anxiety disorders, and adjustment disorder will be recruited from a university outpatient clinic. Patients with bipolar disorder, psychotic disorders, or acute suicidality will be excluded from the study. The feasibility and potential effectiveness of the intervention will be examined by assessing data at baseline, 6 weeks (post), and 12 weeks (follow-up). The primary outcome is general symptom severity, assessed with the Brief Symptom Inventory. Secondary outcomes are emotion regulation, depressive symptoms, anxiety symptoms, health related quality of life, well-being, and a variety of feasibility parameters. Quantitative data will be analyzed on an intention-to-treat basis.

RESULTS

Participant recruitment and data collection started in February 2020, and as of November 2020, are ongoing. Results for the study are expected in 2022.

CONCLUSIONS

This pilot randomized controlled trial will inform future studies using transdiagnostic blended treatment.

TRIAL REGISTRATION

ClinicalTrials.gov NCT04262726; http://clinicaltrials.gov/ct2/show/NCT04262726.

INTERNATIONAL REGISTERED REPORT IDENTIFIER (IRRID)

DERR1-10.2196/20936.

Neural correlates of mindful emotion regulation in high and low ruminators

Depressive rumination is considered a prominent risk factor for the occurrence, severity, and duration of depressive episodes. A variety of treatment options have been developed to treat depressive rumination of which mindfulness based programs are especially promising. In the current study, we investigated the neural underpinnings of a short mindfulness intervention and mindful emotion regulation in high and low trait ruminators in an ecologically valid environment using functional near-infrared spectroscopy (fNIRS). Participants were randomly assigned to a mindfulness instruction (MT) group or an instructed thinking (IT) group. Participants in the MT group were trained to either focus their attention mindfully on their breath or their emotions, while the IT group focused their attention on the past or future. Afterwards, all participants underwent an emotion regulation paradigm in which they either watched negative or neutral movie clips. During both paradigms cortical hemodynamic changes were assessed by means of fNIRS. Participants in the MT group showed lower activity in the cognitive control network (CCN) during the focus on breath condition in comparison to the focus on emotion condition. Additionally, oxygenated hemoglobin in the MT group tended to be lower than in the IT group. Further, self-reports of emotional distress during the instruction paradigm were reduced in the MT group. During the emotion regulation paradigm, we observed reduced emotional reactivity in terms of emotional distress and avoidance in the MT group in comparison to the IT group. Furthermore, on a neural level, we observed higher CCN activity in the MT group in comparison to the IT group. We did not find any effect of rumination, neither on the intervention nor on the emotion regulation task. The results of this pilot study are discussed in light of the present literature on the neural correlates of mindfulness based interventions in rumination and emphasize the use of fNIRS to track neural changes in situ over the course of therapy.

Progressive brain structural alterations assessed via causal analysis in patients with generalized anxiety disorder

Accumulating neuroimaging studies implicate widespread brain structural alterations in patients with generalized anxiety disorder (GAD), but little is known regarding the temporal information of these changes and their causal relationships. In this study, a morphometric analysis was performed on T1-weighted structural images, and the progressive changes in the gray matter volume (GMV) in GAD were simulated by dividing the patients into different groups from low illness duration to high illness duration. The duration was defined as the interval between the onset of GAD and the time for magnetic resonance imaging collection. Then, a causal structural covariance network analysis was conducted to describe the causal relationships of the brain structural alterations in GAD. With increased illness duration, the GMV reduction in GAD originated from the subgenual anterior cingulate cortex (sgACC) and propagated to the bilateral ventromedial prefrontal cortex, right dorsomedial prefrontal cortex, left inferior temporal gyrus, and right insula. Intriguingly, the sgACC and the right insula had positive causal effects on each other. Moreover, both sgACC and right insula exhibited positive causal effects on the parietal cortex and negative effects on the posterior cingulate cortex, dorsolateral prefrontal cortex, visual cortex, and temporal lobe. The opposite causal effects were noted on the somatosensory and the ventrolateral prefrontal cortices. In conclusion, patients with GAD show gradual GMV reduction with increasing ilness duration. Furthermore, the causal effects of the sgACC and the right insula GMV reduction with shifts of duration may provide an important new avenue for understanding the pathological anomalies in GAD.

A Randomized Controlled Trial of Emotion Regulation Therapy for Psychologically Distressed Caregivers of Cancer Patients

BACKGROUND

Previous cognitive behavioral therapies for informal caregivers (ICs) have produced negligible effects. The purpose of this study was to evaluate, in a randomized controlled trial, the efficacy of Emotion Regulation Therapy adapted for caregivers (ERT-C) on psychological and inflammatory outcomes in psychologically distressed ICs and the cancer patients cared for.

METHODS

A total of 81 ICs with elevated psychological distress were randomly assigned to ERT-C or a waitlist condition and assessed pre-, mid-, and post-treatment. In 52 cases, the patient cared for by the IC was included. Patients did not receive ERT-C. Both the ERT-C and waitlist groups were followed 3 and 6 months post-treatment. Data were analyzed with multilevel models, and P values were two-sided.

RESULTS

Compared with ICs in the waitlist condition, ICs in the ERT-C condition experienced medium to large statistically significant reductions in psychological distress (Hedge's g = 0.86, 95% confidence interval [CI] = 0.40 to 1.32, P < .001), worry (g = 0.96, 95% CI = 0.50 to 1.42, P < .001), and caregiver burden (g = 0.53, 95% CI = 0.10 to 1.99, P = .007) post-treatment. No statistically significant effects were found for rumination (g = 0.24, 95% CI = -0.20 to 0.68, P = .220). Results concerning caregiver burden were maintained through 6 months follow-up. Although the effects on psychological distress and worry diminished, their end-point effects remained medium to large. No statistically significant effects on systemic inflammation were detected (C-reactive protein: g = .17, 95% CI = -0.27 to 0.61, P = .570; interleukin-6: g = .35, 95% CI = -0.09 to 0.79, P = .205; tumor necrosis factor-alpha: g = .11, 95% CI = -0.33 to 0.55, P = .686). Patients whose ICs attended ERT-C experienced a large increase in quality of life post-treatment (g = 0.88, 95% CI = 0.18 to 1.58, P = .017).

CONCLUSIONS

To our knowledge, this is the first randomized controlled trial evaluating the efficacy of ERT-C for ICs. Given the previous disappointing effects of other cognitive behavioral therapies for this population, the present findings are very encouraging. Identifying ICs with elevated psychological distress and providing them with relevant psychotherapy appears an important element of comprehensive cancer care.

Abnormal dynamic functional connectivity density in patients with generalized anxiety disorder

BACKGROUND

Numerous studies have revealed the abnormal static functional connectivity (FC) among different brain regions in patients with generalized anxiety disorder (GAD). However, little is known about the dynamic changes of FC in patients with GAD.

METHODS

This study investigated the whole-brain dynamic changes of FC in patients with GAD by combining global FC density (FCD) and sliding window correlation analyses. The standard deviation of dynamic FCD (dFCD) was calculated to evaluate its temporal variability along time. Support vector regression was then employed to predict the symptom severity of patients based on abnormal dynamic connectivity patterns.

RESULTS

The abnormal dFCD variability between 81 GAD patients and 80 healthy controls showed that the patients had higher dFCD variability in the bilateral dorsomedial prefrontal cortex (dmPFC) and left hippocampus while lower dFCD variability in the right postcentral gyrus. The abnormal dFCD variability of the left dmPFC is an important feature for anxiety prediction.

LIMITATIONS

The selection of sliding window length remains controversial, and most of our patients have been treated with medications. Future studies are expected to rule out the potential confounding effects from applying different parameters of the sliding window and recruiting large samples of medication-free patients.

CONCLUSION

The altered patterns of time-varying brain connectivity in the frontolimbic and sensorimotor areas may reflect abnormal dynamic neural communication between these regions and other regions of the brain, which may deepen our understanding of the disease.

Emotion Regulation Therapy and Its Potential Role in the Treatment of Chronic Stress-Related Pathology Across Disorders

Although stress is an inevitable part of everyday life, its chronicity, severity, and perceived burden can result in enduring distress, which may manifest as heightened emotionality, contributing to a number of self-regulatory failures. Specifically, distress disorders are characterized, in part, by heightened sensitivity to underlying motivational systems related to threat/safety, reward/loss, or both. Further, individuals suffering from these conditions typically engage in perseverate negative thinking (e.g., worry, rumination, self-criticism) in an effort to manage motivationally relevant distress and often utilize these processes at the detriment of engaging in new contextual learning. Distress disorders are often brought on by enduring chronic stress, coupled with these maladaptive emotional, cognitive, and behavioral responses and ensuing impairment which contribute to and in turn worsen the deficits from these purported mechanisms. Emotion regulation therapy is a theoretically derived treatment that is based upon affective science to offer a blueprint for improving intervention by focusing on targeting the motivational responses and corresponding regulatory failures of individuals with distress disorders. Open and randomized controlled trials have demonstrated considerable preliminary evidence for the utility of emotion regulation therapy and its proposed mechanisms in treating the distress conditions.

Changes in Decentering and Reappraisal Temporally Precede Symptom Reduction During Emotion Regulation Therapy for Generalized Anxiety Disorder With and Without Co-Occurring Depression

Emotion Regulation Therapy (ERT) has demonstrated efficacy in both open and randomized trials for generalized anxiety disorder (GAD) with and without co-occurring depression. An important goal in ERT is to teach clients adaptive emotion regulation, including healthier metacognitive abilities such as decentering and cognitive reappraisal. A few studies thus far have demonstrated a mediating role for these metacognitive abilities in other cognitive behavioral therapies (CBTs) for GAD. However, a drawback to most of these has been the ability to demonstrate a causal role for improved metacognitive abilities in outcome. In the present study, we utilized multilevel time-lagged segment analyses to explore the temporal dynamics between session-by-session changes in metacognition and anxiety outcomes from ERT. Thirty-one young adults diagnosed with GAD with and without co-occurring depression received 16 sessions of ERT. Prior to each session, participants completed questionnaires pertaining to metacognition (i.e., decentering and cognitive reappraisal) and anxiety symptoms (i.e., worry, trait anxiousness, and generalized anxiety). Changes in decentering temporally preceded changes in worry and trait anxiousness of a medium to large magnitude, and changes in cognitive reappraisal temporally preceded changes in all three outcomes of a medium to large magnitude. The reverse direction, where mediators were predicted by outcomes, was nonsignificant. These findings support the notion that adaptive metacognitive emotion regulation is involved in reducing worry and anxiety in GAD. Having a clearer understanding of the temporal dynamics between metacognitive abilities and symptoms of anxiety can inform and improve not only ERT but other CBTs for GAD, as well.

All together now: utilizing common functional change principles to unify cognitive behavioral and mindfulness-based therapies

Cognitive behavior therapy (CBT) and mindfulness-based interventions (MBI) have made important contributions to resolving the global burden of mental illness. However, response rates are comparatively more modest for the distress disorders. Newer CBTs enriched with MBI components have emerged with promising findings for distress disorders but with a high degree of heterogeneity and, subsequently, an unclear path for determining the unique and synergistic contributions from CBTs and MBIs. We propose that one way to elucidate and improve upon this union is to identify common overarching principles (i.e. attention change; metacognitive change) that guide both approaches and to refine therapeutic processes to optimally reflect these common targets and their interplay (e.g. sequencing and dosing).

A neurobehavioral account for decentering as the salve for the distressed mind

Distress is commonly characterized by prolonged internal suffering that can range from self-focused processing of negative emotions and stressors, to highly intensely aversive and prolonged emotional states, thereby, worsening or complicating emotional and physical conditions. Decentering represents a metacognitive capacity thought to reflect three interrelated processes: meta-awareness, disidentification from internal experience, and reduced reactivity to thought content-which is reliably increased with mindfulness-based interventions. In this essay, we seek to link the clinical presentation of distress disorders to known or hypothesized disruptions in neural networks that underlie emotion, cognition, and goal directed behavior, and offer a neurobehavioral account for how and why treatments imbued with mindfulness meditation might ameliorate these conditions, in part through increases in decentering.

Changes in Functional Connectivity Following Treatment With Emotion Regulation Therapy

Emotion regulation therapy (ERT) is an efficacious treatment for distress disorders (i.e., depression and anxiety), predicated on a conceptual model wherein difficult to treat distress arises from intense emotionality (e.g., neuroticism, dispositional negativity) and is prolonged by negative self-referentiality (e.g., worry, rumination). Individuals with distress disorders exhibit disruptions in two corresponding brain networks including the salience network (SN) reflecting emotion/motivation and the default mode network (DMN) reflecting self-referentiality. Using resting-state functional connectivity (rsFC) analyses, seeded with primary regions in each of these networks, we investigated whether ERT was associated with theoretically consistent changes across nodes of these networks and whether these changes related to improvements in clinical outcomes. This study examined 21 generalized anxiety disorder (GAD) patients [with and without major depressive disorder (MDD)] drawn from a larger intervention trial (Renna et al., 2018a), who completed resting state fMRI scans before and after receiving 16 sessions of ERT. We utilized seed-based connectivity analysis with seeds in the posterior cingulate cortex (PCC), right anterior insula, and right posterior insula, to investigate whether ERT was associated with changes in connectivity of nodes of the DMN and SN networks to regions across the brain. Findings revealed statistically significant treatment linked changes in both the DMN and SN network nodes, and these changes were associated with clinical improvement corresponding to medium effect sizes. The results are discussed in light of a nuanced understanding of the role of connectivity changes in GAD and MDD, and begin to provide neural network support for the hypothesized treatment model predicated by ERT.