Journal of Anxiety Disorders最新文献

People may experience anxiety and related distress when they come in contact with climate change (i.e., climate change anxiety). Climate change anxiety can be conceptualized as either emotional-based response (the experience of anxiety-related emotions) or impairment-based response (the experience of impairment in daily functioning). To date, it remains uncertain how these distinct manifestations of climate change anxiety are related. Conceptually, the experience of climate change anxiety may transform from an adaptive and healthy emotional response to an impairment in daily functioning. We conducted two two-wave longitudinal studies to examine the possible bidirectional relationships between three manifestations of climate change anxiety. We recruited 942 adults (mean age = 43.1) and 683 parents (mean age = 46.2) in Studies 1 and 2, respectively. We found that Time 1 emotion-based response was positively linked to Time 2 cognitive-emotional impairment, while Time 1 cognitive-emotional impairment was positively related to Time 2 functional impairment. In Study 2, we also found a bidirectional positive relationship between generalized anxiety and emotion-based climate change anxiety over time. Overall, our findings provide initial support to the temporal relationships between different manifestations of climate change anxiety, corroborating that climate change anxiety may develop from emotional responses to impairment in functioning.

Psychotherapies for posttraumatic stress disorder (PTSD) assume that PTSD symptom improvement will lead to improvements in functioning. Yet, few studies have examined the dynamic interplay between these constructs. Using a random intercepts cross-lagged panel model, we examined the association between functioning and PTSD, both modeled as a total score and as the DSM-5 subclusters, across twelve sessions of treatments that chiefly target functioning. Participants were 161 Veterans with PTSD enrolled in a randomized controlled trial comparing present centered therapy and an enhanced version of adaptive disclosure. Overall, PTSD symptoms, measured as the total PTSD score, led to changes in functioning more frequently than functioning predicting PTSD symptoms, although these effects did not appear until session 7. In terms of subclusters, functioning predicted changes in the PTSD subclusters B (intrusions), C (avoidance), and E (alterations in arousal and reactivity) at more timepoints compared to timepoints at which these subclusters predicted functioning. The dynamic relationships between PTSD and functioning in the context of functioning-focused treatments are complex, with functioning playing an important role in reduction of some of the core symptoms of PTSD.

The present study examined contextual factors that affect safety behavior use as well as positive emotions when using safety behaviors among individuals with SAD. Eighty-eight participants took part in the study, half (n = 44) met diagnostic criteria for SAD and half (n = 44) did not meet criteria for SAD. Participants completed a 21-day experience sampling methodology (ESM) measurement in which they reported on daily social interactions, safety behavior use, and emotions. Using multilevel linear modeling we found that both individuals with and without SAD used more safety behaviors when interacting with distant others compared to close others, but this effect was greater for individuals with SAD compared to individuals without SAD. We also found that social anxiety significantly moderated the relationship between safety behaviors in social interactions and positive emotions. Specifically, our findings indicated that individuals with higher levels of social anxiety reported lower levels of positive emotions when using safety behaviors. Implications of our findings for models of psychopathology and for treatment of SAD are discussed.

Neuromodulation treatments are novel interventions for post-traumatic stress disorder (PTSD), but their comparative effects at treatment endpoint and follow-up and the influence of moderators remain unclear. We included randomized controlled trials (RCTs) that explored neuromodulation, both as monotherapy and in combination, for treating patients with PTSD. 21 RCTs with 981 PTSD patients were included. The neuromodulation treatment was classified into nine protocols, including subtypes of transcranial magnetic stimulation (TMS), transcranial direct current stimulation (tDCS), cervical vagal nerve stimulation (VNS), and trigeminal nerve stimulation (TNS). This Bayesian network meta-analysis demonstrated that (1) dual-tDCS (SMD = −1.30), high-frequency repetitive TMS (HF-rTMS) (SMD = −0.97), intermittent theta burst stimulation (iTBS) (SMD = −0.93), and low-frequency repetitive TMS (LF-rTMS) (SMD = −0.76) were associated with significant reductions in PTSD symptoms at the treatment endpoint, but these effects were not significant at follow-up; (2) no difference was found between any active treatment with sham controls; (3) regarding co-morbid additions, synchronized TMS (sTMS) was significantly associated with reductions of depression symptoms at treatment endpoint (SMD = −1.80) and dual-tDCS was associated with reductions in anxiety symptoms at follow-up (SMD = −1.70). Findings suggested dual-tDCS, HF-rTMS, iTBS, and LF-rTMS were effective for reducing PTSD symptoms, while their sustained efficacy was limited.

Prominent models of adult social anxiety disorder emphasize the role of hyperreactivity and emotion regulation (ER) difficulties. However, it is unclear whether these factors are relevant in childhood, a critical period for the development of this disorder. We used ecological momentary assessment with mobile phones to assess daily-life emotional reactivity and use and effectiveness of ER strategies in children aged 10–13 years. We compared three groups: Social anxiety disorder (n = 29), clinical controls with mixed anxiety disorders (n = 27) and healthy controls (n = 31). We also investigated long-term effects of ER on trait social anxiety 12 months later. Hierarchical linear modelling revealed higher emotional reactivity and more use of suppression in children with social anxiety disorder compared to clinical and healthy controls. Contrary to our expectations, children with social anxiety disorder reported more use of avoidance and reappraisal compared to clinical, but not healthy, controls. The groups did not differ in subjective effectiveness of ER strategies. Use of suppression, avoidance, and rumination each predicted an increase in social anxiety 12 months later. Taken together, our results extend previous findings from lab and questionnaire studies and illustrate the role of maladaptive ER for child social anxiety disorder.

Concerns regarding retraumatisation have been identified as a barrier to delivering trauma-focused therapy for post-traumatic stress disorder (PTSD). We explored clinicians’ understanding of what constitutes potential signs of retraumatisation (PSoR), reported incidences of witnessing retraumatisation, use of (and confidence in) therapies for PTSD, fear of retraumatisation during therapy for PTSD, and whether having witnessed retraumatisation was associated with these variables. We surveyed 348 clinicians. There was variation in what clinicians viewed as PSoR. Retraumatisation was reported by clinicians in 3.4 % of patients undergoing trauma-focused therapy for PTSD. A variety of trauma-focused and non-trauma-focused therapies were routinely used, yet 14.4 % reported not using trauma-focused therapy. There was a significant negative correlation between participants’ highest reported confidence in trauma-focused therapy and endorsement of PSoR (r = −.25) and fear of retraumatisation (r = −.28). Mean fear of retraumatisation was 30.3 (SD=23.4; a score we derived from asking participants out of 100 how much they worry about trauma-focused therapy being harmful in its own right/leading to a worsening of PTSD symptoms). Participants who had witnessed retraumatisation reported significantly greater endorsement of PSoR (d=.69 [95 % CI .37, 1.02]) and fear of retraumatisation (d=.94 [95 % CI .61, 1.26]). Confidence in using therapies for PTSD was varied and related to how clinicians understood retraumatisation. Retraumatisation is uncommon, but there is variability in clinicians’ interpretation of what retraumatisation is, and its utility warrants research.

Negative emotions and associated avoidance behaviors are core symptoms of anxiety. Current treatments aim to resolve dysfunctional coupling between them. However, precise interactions between emotions and avoidance in patients’ everyday lives and changes from pre- to post-treatment remain unclear. We analyzed data from a randomized controlled trial where patients with anxiety disorders underwent 16 sessions of cognitive behavioral therapy (CBT). Fifty-six patients (68 % female, age: M = 33.31, SD = 12.45) completed ecological momentary assessments five times a day on 14 consecutive days before and after treatment, rating negative emotions and avoidance behaviors experienced within the past 30 min. We computed multilevel vector autoregressive models to investigate contemporaneous and time-lagged associations between anxiety, depression, anger, and avoidance behaviors within patients, separately at pre- and post-treatment. We examined pre-post changes in network density and avoidance centrality, and related these metrics to changes in symptom severity. Network density significantly decreased from pre- to post-treatment, indicating that after therapy, mutual interactions between negative emotions and avoidance were attenuated. Specifically, contemporaneous associations between anxiety and avoidance observed before CBT were no longer significant at post-treatment. Effects of negative emotions on avoidance assessed at a later time point (avoidance instrength) decreased, but not significantly. Reduction in avoidance instrength positively correlated with reduction in depressive symptom severity, meaning that as patients improved, they were less likely to avoid situations after experiencing negative emotions. Our results elucidate mechanisms of successful CBT observed in patients’ daily lives and may help improve and personalize CBT to increase its effectiveness.

Anxiety disorders are common and highly distressing mental health conditions. Exposure therapy is a gold-standard treatment for anxiety disorders. Mechanisms of Pavlovian fear learning, and particularly fear extinction, are central to exposure therapy. A growing body of evidence suggests an important role of reward processes during Pavlovian fear extinction. Nonetheless, predominant models of exposure therapy do not currently incorporate reward processes. Herein, we present a theoretical model of reward processes in relation to Pavlovian mechanisms of exposure therapy, including a focus on dopaminergic prediction error signaling, coinciding positive emotional experiences (i.e., relief), and unexpected positive outcomes. We then highlight avenues for further research and discuss potential strategies to leverage reward processes to maximize exposure therapy response, such as pre-exposure interventions to increase reward sensitivity or post-exposure rehearsal (e.g., savoring, imaginal recounting strategies) to enhance retrieval and retention of learned associations.

Purpose

This study examined the relationship between structural brain networks and long-term treatment outcomes in patients with panic disorder (PD) using machine learning methods.

Method

The study involved 80 participants (53 PD patients and 27 healthy controls) and included clinical assessments and MRI scans at baseline and after two years (160 MRIs). Patients were categorized based on their response to two-year pharmacotherapy. Brain networks were analyzed using white matter tractography and network-based statistics.

Results

Results showed structural network changes in PD patients, particularly in the extended fear network, including frontal regions, thalamus, and cingulate gyrus. Longitudinal analysis revealed that increased connections to the amygdala, hippocampus, and insula were associated with better treatment response. Conversely, overconnectivity in the amygdala and insula at baseline was associated with poor response, and similar patterns were found in the insula and parieto-occipital cortex related to non-remission. This study found that SVM and CPM could effectively predict treatment outcomes based on network pattern changes in PD.

Conclusions

These findings suggest that monitoring structural connectome changes in limbic and paralimbic regions is critical for understanding PD and tailoring treatment. The study highlights the potential of using personalized biomarkers to develop individualized treatment strategies for PD.

Background

Efforts to identify risk and resilience factors for anxiety severity and course during the COVID-19 pandemic have focused primarily on demographic rather than psychological variables. Intolerance of uncertainty (IU), a transdiagnostic risk factor for anxiety, may be a particularly relevant vulnerability factor.

Method

N = 641 adults with pre-pandemic anxiety data reported their anxiety, IU, and other pandemic and mental health-related variables at least once and up to four times during the COVID-19 pandemic, with assessments beginning in May 2020 through March 2021.

Results

In preregistered analyses using latent growth models, higher IU at the first pandemic timepoint predicted more severe anxiety, but also a sharper decline in anxiety, across timepoints. This finding was robust to the addition of pre-pandemic anxiety and demographic predictors as covariates (in the full sample) as well as pre-pandemic depression severity (in participants for whom pre-pandemic depression data were available). Younger age, lower self/parent education, and self-reported history of COVID-19 illness at the first pandemic timepoint predicted more severe anxiety across timepoints with strong model fit, but did not predict anxiety trajectory.

Conclusions

IU prospectively predicted more severe anxiety but a sharper decrease in anxiety over time during the pandemic, including after adjustment for covariates. IU therefore appears to have unique and specific predictive utility with respect to anxiety in the context of the COVID-19 pandemic.