Self-reported emotion regulation difficulties in people with psychosis compared with non-clinical controls: A systematic literature review

Does affect mediate the relationship between interpersonal trauma and psychosis? A systematic review and meta-analysis

INTRODUCTION

The relationship between interpersonal trauma and psychosis is well established, and research is now focused on identifying mechanisms that may explain this relationship. Models of trauma and psychosis increasingly emphasize a broad range of affective processes, yet the overall effect of these affective processes is not well understood.

AIM

This review systematically examined the effect of any form of long-term affective dysfunction on the relationship between interpersonal trauma and psychosis. Where possible, it used meta-analytic techniques to quantify the overall magnitude of this effect.

METHOD

Searches were conducted using PsychINFO, MEDLINE and CINAHL databases, and eligible studies were appraised for methodological quality. Narrative synthesis and meta-analytic methods were used to evaluate evidence.

RESULTS

Twenty-nine studies met criteria for inclusion. Five affective mediators were found; depression, anxiety, affective dysregulation, loneliness and attachment. Findings from both the narrative synthesis (n = 29) and meta-analysis (n = 8) indicated that, overall, affect is a small but significant mediator of the relationship between interpersonal trauma and psychosis (pooled Cohen's d = 0.178; pooled 95 % CI: 0.022-0.334).

CONCLUSIONS

Overall, findings support affective pathways to psychosis, though highlight the need for further research on broader affective mediators (loneliness, shame). The small effect size found in the meta-analysis also points to the potential importance of non-affective mediators. Clinically, these findings highlight the value of treatment modalities that attend to multiple mechanisms in the relationship between interpersonal trauma and psychosis. Future research should focus on the interplay and causal sequence between these mechanisms to further understand pathways between interpersonal trauma and psychosis.

Do deficits in subjective stress recovery predict subsequent stress sensitivity and symptoms in schizophrenia spectrum disorders?

High levels of stress play a crucial role in the development of psychotic symptoms, such as paranoia, and may stem in part from recovery deficits after stress exposure. However, it remains unclear whether deficient recovery causes a build-up of heightened stress levels that increases stress sensitivity and symptoms when exposed to another stressor. To test this, we investigated the effect of subjective stress recovery on the response to a subsequent stressor and paranoia. We applied two consecutive runs of the same combined physical and cognitive stressor separated by a recovery phase of 60 min in individuals with schizophrenia spectrum disorders (n = 49). We repeatedly assessed self-reported stress, negative affect, heart rate, heart rate variability, salivary cortisol, and paranoia. Recovery of self-reported stress was defined as the geometric mean of the percentage changes of self-reported stress during recovery after the first stressor, and was regressed on the response to the second stressor controlling for self-reported stress during the first stressor. Lower subjective stress recovery predicted higher levels of self-reported stress, negative affect, and paranoia in response to the second stressor. The subjective stress recovery was not predictive of the physiological stress response (heart rate, heart rate variability, or salivary cortisol). Taken together, the findings indicate that recovery deficits could contribute to high levels of self-reported stress, negative affect, and paranoia in schizophrenia spectrum disorders and that the improvement of stress recovery could be a promising approach for interventions.

Emotion regulation in daily life in early psychosis: The role of contextual appraisals

BACKGROUND

Little is known about whether and how contextual appraisals relate to emotion regulation (ER) strategy use across the ultra-high risk and first episode stages of psychosis. The present study extends previous research by investigating the extent to which different appraisal dimensions of the most negative and positive events of the day are associated with ER strategy use in individuals with ultra-high risk (UHR) and first-episode psychosis (FEP).

METHOD

Sixty-eight UHR individuals and fifty-five FEP individuals filled out an experience sampling evening questionnaire for six consecutive days, in which their appraisal of intensity, importance and perceived control concerning the most negative or positive event of the day, and the ER strategies they deploy in response to these events were measured.

RESULTS

Multilevel mixed effect models showed that intensity appraisal was most closely associated with ER strategy use, as opposed to importance and controllability appraisals. Higher intense negative events were associated with more rumination and social sharing, while less intense negative events were associated with more reappraisal. Higher intense positive events were associated with a greater number of deployed strategies and more efforts in using savoring, expression and social sharing. The UHR and FEP individuals did not significantly differ regarding effects of above-mentioned appraisal dimensions on ER.

CONCLUSIONS

These results provide evidence supporting ER flexibility in early psychosis, and event intensity emerged as the dimension most strongly associated with ER. Future research should better account for other situational factors (such as social context) that might affect ER use in psychosis.

Interplay between negative symptoms, time spent doing nothing, and negative emotions in patients with schizophrenia spectrum disorders: results from a 37-site study

This study evaluated the relationship between negative symptoms, daily time use (productive/non-productive activities, PA/NPA), and negative emotions in schizophrenia-spectrum disorders (SSDs): 618 individuals with SSDs (311 residential care patients [RCPs], 307 outpatients) were surveyed about socio-demographic, clinical (BPRS, BNSS) and daily time use (paper-and-pencil Time Use Survey completed twice/week) characteristics. Among them 57 RCPs and 46 outpatients, matched to 112 healthy controls, also underwent ecological monitoring of emotions (8 times/day for a week) through Experience Sampling Method (ESM). RCPs spent significantly less time in PA than outpatients. Patients with more negative symptomatology spent more time in NPA and less in PA compared to patients with milder symptoms. Higher time spent in NPA was associated with negative emotions (p < 0.001 during workdays) even when correcting for BNSS total and antipsychotic polypharmacy (p = 0.002 for workdays, p = 0.006 for Sundays). Future studies are needed to explore in more detail the relationship between negative emotions, negative symptoms, time use, and functioning in individuals with SSDs, providing opportunities for more informed and personalised clinical treatment planning and research into interactions between different motivational, saliency and behavioural aspects in individuals with SSDs.

Does trait mindfulness mediate the relationship between borderline personality symptoms and emotion dysregulation?

BACKGROUND

Emotion dysregulation is core to many biopsychosocial models of Borderline Personality Disorder (BPD) and is often targeted as part of their associated psychological therapies. Several distinct specialist psychotherapies are thought to be effective for people diagnosed with BPD but it is unclear whether they share common change mechanisms. Some evidence suggests that Mindfulness Based Interventions improve competency in emotion regulation as well as trait mindfulness, which are both plausibly associated with good treatment outcomes. It is unclear whether the association between the severity of BPD symptoms and emotion dysregulation is mediated by trait mindfulness. Would improvement in trait mindfulness mediate an association between lower severity of BPD symptoms and fewer problems of emotion dysregulation?

METHODS

One thousand and twelve participants completed online, single time-point, self-report questionnaires.

RESULTS

As predicted, the severity of BPD symptoms was significantly and positively associated with emotion dysregulation with a large effect size (r = .77). Trait mindfulness mediated this relationship as the 95% confidence interval for the indirect effect did not cross zero (size of direct effect = .48 and size of indirect effect = .29 [.25, .33].

CONCLUSIONS

The relationship between the severity of BPD symptoms and emotion dysregulation was confirmed in this dataset. As hypothesised, this relationship was mediated by trait mindfulness. Process measures of emotion dysregulation and mindfulness should be included in intervention studies for people diagnosed with BPD to understand if improvements in these factors are a universal occurrence with good response to treatment. Other process measures should also be explored to identify other factors involved in the relationship between BPD symptoms and emotion dysregulation.

Neural correlates of daily-life affective stress reactivity in early psychosis: A study combining functional MRI and experience sampling methodology

Affective reactivity to daily stressors are increased in individuals in the early stages of psychosis. Studies in psychosis patients and healthy individuals at increased psychosis risk show altered neural reactivity to stress in limbic (i.e., hippocampus [HC] and amygdala), prelimbic (i.e., ventromedial prefrontal cortex [vmPFC] and ventral anterior cingulate cortex [vACC]), and salience areas (i.e., Anterior Insula [AI]). We investigated whether a similar pattern of neural reactivity is present in early psychosis individuals and if brain activity in these regions is associated with daily-life stress reactivity. Twenty-nine early psychosis individuals (11 at-risk mental state and 18 first-episode psychosis) completed the Montreal Imaging Stress Task in conjunction with functional MRI. The study was part of a large-scale randomized controlled trial on the efficacy of an acceptance and commitment therapy-based ecological momentary intervention for early psychosis. All participants also provided experience sampling methodology (ESM) data on momentary affect and stressful activities in their everyday environment. Multilevel regression models were used to estimate if daily-life stress reactivity was moderated by activity in (pre)limbic and salience areas. Task-induced stress was associated with increased activation of the right AI and decreased activation in the vmPFC, vACC, and HC. Task-induced changes in vmPFC and vACC activity were associated with affective stress reactivity, whereas changes in HC and amygdala activity were associated with higher overall stress ratings. These preliminary results suggest region-specific roles in affective and psychotic daily-life stress reactivity in early psychosis. The observed pattern suggests that chronic stress plays a role in neural stress reactivity.

Emotion regulation relates to clinical characteristics and quality of life but not daily functioning in psychosis spectrum outpatients

Difficulties in emotion regulation (ER) can negatively impact the clinical course and outcomes of a range of psychiatric conditions, including psychosis spectrum disorders. Individuals with psychosis may exhibit poorer ER abilities, which have been associated with increased severity and distress of psychotic symptoms. A paucity of research has investigated the clinical correlates of ER in psychosis and the influence of these difficulties on indices of recovery, such as daily functioning and quality of life. In the present study, 59 outpatients presenting for Cognitive Behaviour Therapy for psychosis (CBTp) in a large psychiatric hospital completed an intake assessment of clinician-rated and self-reported measures prior to treatment. Poor ER abilities were positively correlated with positive symptoms (overall and delusions), social anxiety, depression, and self-reflectiveness and negatively correlated with quality of life and personal recovery. Multiple regression analyses showed ER was a significant predictor of quality of life but not daily functioning, which was predicted most by cognition and psychiatric symptoms. Overall, findings support the clinical utility of assessing emotion dysregulation in psychosis and provide a more nuanced understanding of how such challenges differentially influence recovery in psychosis, which can further inform treatment planning and intervention.

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.

Network Analysis of the Structure of the Core Symptoms and Clinical Correlates in Comorbid Schizophrenia and Gambling Disorder

Few studies have analyzed the clinical profile of treatment-seeking patients with the comorbid presence of schizophrenia (SCZ) and gambling disorder (GD), which warrants new research to assess the network structure of this complex mental condition. The aim of this study was to explore the organization of the symptoms and other clinical correlates of SCZ with GD. Network analysis was applied to a sample of N = 179 SCZ patients (age range: 19-70 years, mean=39.5, SD=9.9) who met clinical criteria for gambling disorder-related problems. Variables included in the network were the core GD symptoms according to the DSM-5, psychotic and paranoid ideation levels, global psychological distress, GD severity measures (debts and illegal behavior related with gambling), substances (tobacco, alcohol, and illegal drugs), and personality profile. The nodes with the highest authority in the network (variables of highest relevance) were personality traits and psychological distress. Four empirical modules/clusters were identified, and linkage analysis identified the nodes with the highest closeness (bridge nodes) to be novelty seeking and reward dependence (these traits facilitate the transition between the modules). Identification of the variables with the highest centrality/linkage can be particularly useful for developing precise management plans to prevent and treat SCZ with GD.

Supplementary Information

The online version contains supplementary material available at 10.1007/s11469-022-00983-y.

Psychological Dimensions Relevant to Motivation and Pleasure in Schizophrenia

Motivation and pleasure deficits are common in schizophrenia, strongly linked with poorer functioning, and may reflect underlying alterations in brain functions governing reward processing and goal pursuit. While there is extensive research examining cognitive and reward mechanisms related to these deficits in schizophrenia, less attention has been paid to psychological characteristics that contribute to resilience against, or risk for, motivation and pleasure impairment. For example, psychological tendencies involving positive future expectancies (e.g., optimism) and effective affect management (e.g., reappraisal, mindfulness) are associated with aspects of reward anticipation and evaluation that optimally guide goal-directed behavior. Conversely, maladaptive thinking patterns (e.g., defeatist performance beliefs, asocial beliefs) and tendencies that amplify negative cognitions (e.g., rumination), may divert cognitive resources away from goal pursuit or reduce willingness to exert effort. Additionally, aspects of sociality, including the propensity to experience social connection as positive reinforcement may be particularly relevant for pursuing social goals. In the current review, we discuss the roles of several psychological characteristics with respect to motivation and pleasure in schizophrenia. We argue that individual variation in these psychological dimensions is relevant to the study of motivation and reward processing in schizophrenia, including interactions between these psychological dimensions and more well-characterized cognitive and reward processing contributors to motivation. We close by emphasizing the value of considering a broad set of modulating factors when studying motivation and pleasure functions in schizophrenia.

Increased cingulo-orbital connectivity is associated with violent behaviours in schizophrenia

OBJECTIVE

Although schizophrenia patients are at a heightened risk of exhibiting violent behaviours compared to the general population, few functional neuroimaging studies have explored the aberrant neurocircuitry underpinning such behaviours. This study aimed to identify disrupted resting-state activity and functional connectivity in schizophrenia patients with a history of violence.

METHODS

Resting state functional magnetic resonance imaging data was collected from 62 schizophrenia patients and 25 healthy controls. Voxel-wise analyses of fractional amplitude of low frequency fluctuations (fALFF) were implemented to investigate disrupted regional patterns of spontaneous brain activity. Brain regions which yielded significant differences between groups were subsequently used as data-driven seeds for functional connectivity analyses. Finally, significant alterations (activity and connectivity) were correlated with lifetime violent behaviours.

RESULTS

When compared to healthy controls, schizophrenia patients exhibited reduced fALFF in multiple brain regions including the (subgenual) anterior cingulate cortex (ACC), posterior cingulate cortex, precuneus cortex and left lateral orbitofrontal cortex (OFC). Seed-to-voxel analyses yielded significantly enhanced connectivity between the ACC and left OFC. The heightened functional connectivity between the latter two regions predicted the number of violent behaviours reported by schizophrenia patients.

CONCLUSION

The current study demonstrated that the functional connectivity of brain regions associated with emotion regulation is impaired in schizophrenia and associated with violent antecedents among patients. This result is consistent with predominant theoretical models proposing that the OFC plays a critical role in the neurobiology of violence.

Managing emotions in psychosis: Evaluation of a brief DBT-informed skill group for individuals with psychosis in routine community services

Objectives

Individuals with psychosis report that emotion regulation (ER) difficulties are treatment priorities, yet little is known about how targeted ER interventions may help. We evaluated a new eight‐session Dialectical Behavioural Therapy (DBT)–informed skills group specifically adapted for individuals with psychosis: the Managing Emotions Group (MEG) in diverse, inner‐city community services.

Method

A mixed‐method design was utilised to assess the feasibility (acceptability and potential clinical impact) of local delivery of MEG. Uptake, completion (≥50% of sessions), post‐session satisfaction ratings, and thematic analysis of qualitative feedback from 12 completers assessed acceptability. Pre–post‐intervention changes in psychological distress, self‐reported ER difficulties, and adaptive ER skill use assessed potential clinical impact.

Results

Forty‐eight individuals (81% of attenders) completed the intervention (M_age = 43, 54% female) of whom 39 completed pre‐ and post‐group measures. Participants reported high satisfaction and meaningful improvements in understanding and managing emotions, with positive impact on daily life. Self‐reported psychological distress, ER difficulties, and adaptive ER skill use significantly improved, with medium‐to‐large pre‐post effects (d = 0.5–0.7) except lack of emotional clarity (d = 0.3).

Conclusions

MEG was feasible and acceptable, and a future feasibility randomised controlled trial is warranted.

Practitioner points

Individuals with psychosis report that support with their emotions is a priority.

Brief interventions for emotion regulation difficulties are acceptable to individuals with psychosis and can be feasibly delivered in a local outpatient service.

Distress and emotion regulation difficulties and skills improved significantly from pre–post treatment for clients completing the managing emotions group.

Further implementation and evaluation are needed to support continued refinement to meet the needs and priorities of individuals with psychosis.

The Relation between Negative Automatic Thoughts and Psychological Inflexibility in Schizophrenia

Background: Schizophrenia is one of the most severe disorders in the Diagnostic and Statistical Manual of Mental Disorders (DSM-5) spectrum. Negative automatic thoughts (NAT), cognitive fusion (CF), and experiential avoidance (EA), as part of psychological inflexibility (PI), can be considered important dysfunctional cognitive processes in schizophrenia. Methods: In the present study, two samples were included: a target group consisting of 41 people with schizophrenia (23 females; aged 44.98 ± 11.74), and a control group consisting of 40 individuals with end-stage chronic kidney disease (CKD) (27 males; aged 60.38 ± 9.14). Results: Differences were found between the two groups, with patients with schizophrenia showing an increased frequency of NAT, as well as higher levels of CF and EA (psychological inflexibility), compared to the control group. NAT were the mediator in the relation between the schizophrenia diagnosis and CF, as well as EA. Conclusion: Individuals with schizophrenia present a specific dysfunctional pattern of cognitive functioning, in which negative automatic thoughts represent a distinctive pathway to cognitive fusion and experiential avoidance.

Feasibility and efficacy of an acceptance and mindfulness-based group intervention for young people with early psychosis (Feel-Good group)

BACKGROUND

Over the last decade, researchers have sought for alternative interventions that have better treatment effects than Cognitive Behavioral Therapy (CBT) when treating psychotic symptoms. Mindfulness-based interventions have been a proposed alternative to CBT, yet research regarding its feasibility, acceptance and effectiveness is lacking when treating individuals with early psychosis in inpatient settings.

OBJECTIVE

Before conducting a large-scale randomized-controlled trial (RCT), this pilot study evaluated the feasibility and the potential efficacy of a mindfulness-based inpatient group intervention that targets emotion regulation in patients with early psychosis, and thus indirectly improving psychotic symptoms.

METHODS

A pre-post study was performed. Thirty-six patients with early psychosis treated at the specialized inpatient treatment "Frühinterventions- und Therapiezentrum; FRITZ" (early intervention and therapy center) received eight group therapy sessions. Assessments were performed at baseline, after 8 weeks post treatment and at follow-up after 16 weeks.

RESULTS

Rates of patients who participated in the study suggests that a mindfulness-based group therapy is highly accepted and feasible for patients with early psychosis being treated in an inpatient ward. Friedman analyses revealed significant changes in the primary outcomes of emotional goal attainment (Goal 1: W = 0.79; Goal 2: W = 0.71) and psychotic symptoms (PANSS-T: W = 0.74). Significant, albeit small, effect sizes were found in patients' self-perception of emotion regulation skills (ERSQ: W = 0.23).

DISCUSSION

We found favorable findings regarding the feasibility and acceptance of the Feel-Good mindfulness-based intervention. Results of the study provide a basis for an estimation of an adequate sample size for a fully powered RCT that needs to be conducted to test whether Feel-Good is effective in the inpatient treatment of psychotic symptoms for individuals with early psychosis.

CLINICAL TRIAL REGISTRATION

[https://clinicaltrials.gov/ct2/show/NCT04592042], identifier [NCT04592042].

Testing whether implicit emotion regulation mediates the association between discrimination and symptoms of psychopathology in late childhood: An RDoC perspective

Discrimination has been associated with adverse mental health outcomes, though it is unclear how early in life this association becomes apparent. Implicit emotion regulation, developing during childhood, is a foundational skill tied to a range of outcomes. Implicit emotion regulation has yet to be tested as an associated process for mental illness symptoms that can often emerge during this sensitive developmental period. Youth aged 9-11 were recruited for the Adolescent Brain Cognitive Development (ABCD) study. Associations between psychotic-like experiences, depressive symptoms, and total discrimination (due to race, ethnicity, nationality, weight, or sexual minority status) were tested, as well as associations with implicit emotion regulation measures (emotional updating working memory and inhibitory control). Analyses examined whether associations with symptoms were mediated by implicit emotion regulation. Discrimination related to decreased implicit emotion regulation performance, and increased endorsement of depressive symptoms and psychotic-like experiences. Emotional updating working memory performance partially mediated the association between discrimination and psychotic-like experiences, while emotional inhibitory control did not. Discrimination and implicit emotion regulation could serve as putative transdiagnostic markers of vulnerability. Results support the utility of using multiple units of analysis to improve understanding of complex emerging neurocognitive functions and developmentally sensitive periods.

Self-reported emotion regulation difficulties in psychosis: Psychometric properties of the Difficulties in Emotion Regulation Scale (DERS-16)

OBJECTIVE

Individuals with psychosis self-report difficulties in understanding, relating, and responding to emotions as treatment priorities, yet we lack comprehensive, reliable, and valid assessments for routine clinical use.

METHODS

The psychometric properties of a brief version of the Difficulties in Emotion Regulation Scale-16 (DERS-16) were examined using anonymized data from a sample of 150 outpatients with psychosis.

RESULTS

Confirmatory factor analysis supported the five-factor structure of the DERS-16. The model fit was further improved by omitting two items. Measurement invariance was shown with respect to age and gender. The DERS-16 demonstrated good internal consistency, well comparable to the original DERS. Evidence toward convergent validity is also presented.

CONCLUSION

Findings suggest that the DERS-16 is a reliable and valid measure of self-reported emotion regulation difficulties in individuals with psychosis. Further research on the clinical utility of the DERS-16 is needed, including examination of its test-retest reliability and predictive validity in response to targeted interventions.

The prevalence and features of schizophrenia among individuals with gambling disorder

BACKGROUND-OBJECTIVES

Few studies have analyzed the comorbid presence of gambling disorder (GD) with schizophrenia, its sociodemographic correlates and clinical implications. This study estimated the prevalence of the dual diagnosis (GD with schizophrenia) and the differences in the profiles of patients with and without the dual condition.

METHOD

The sample included n = 3,754 patients consecutively accepted for treatment for GD. Sociodemographics, gambling-related variables, psychopathological state and personality traits were assessed and compared between the groups.

RESULTS

The prevalence of schizophrenia within patients who met clinical criteria for GD was 4.4% (95% confidence interval: 3.8%-5.1%). Variables related to the dual presence of GD with schizophrenia were single marital status, lower education level, inactive working status, socioeconomic disadvantage, younger age, earlier onset of gambling problems, worse global psychopathological state and more dysfunctional personality profile (higher level in harm avoidance and lower level in cooperativeness, reward dependence, persistence and self-directedness).

CONCLUSION

The presence of schizophrenia among patients with GD was around 4 times higher than the prevalence rate estimated in the reference general population. The differences in the profiles of GD patients with and without schizophrenia suggest that individuals with the dual diagnosis condition require unique assessment considerations and tailored treatment interventions specifically designed for the clinical and functioning higher risk.

Binge Eating Disorders in Antipsychotic-Treated Patients With Schizophrenia: Prevalence, Antipsychotic Specificities, and Changes Over Time

BACKGROUND

Excessive energy intake likely favors metabolic dysfunction in patients with schizophrenia and may be, in part, the consequence of antipsychotic treatments. However, previous studies on the prevalence of bulimia and binge eating symptoms in antipsychotic-treated patients are contradictory and not sufficiently informative.

METHODS

The prevalence of bulimia nervosa, binge eating disorder, and subsyndromal binge eating disorder was studied using Diagnostic and Statistical Manual of Mental Disorders, Fourth Edition, criteria in 156 patients with schizophrenia or schizoaffective disorder treated with antipsychotic monotherapy. The effects of different antipsychotics were compared.

RESULTS

The prevalence of full syndromal binge eating disorder was 4.4% and that of subsyndromal binge eating disorder was 18.7% in patients (23.1% for binge eating spectrum disorder), and there were no cases of bulimia nervosa. Compared with the whole sample, binge eating spectrum disorders were significantly more prevalent in clozapine- and olanzapine-treated patients. Comparisons of patients having undergone treatment for 2 years or less with patients treated for more than 2 years showed that binge eating spectrum disorders decrease significantly over time, the difference being significant in clozapine- and olanzapine-treated patients. Night eating, simply assessed by a single question, showed a prevalence of 30% and was more prevalent in women treated with clozapine and olanzapine, with no significant change over time.

CONCLUSIONS

Binge eating disorders should be considered as important factors involved in the development of weight gain and metabolic syndrome in antipsychotic-treated patients with schizophrenia. The difficulty to reliably assess binge eating spectrum disorders in patients with psychosis is highlighted.

Targeting affect leads to reduced paranoia in people with psychosis: a single case series

BACKGROUND

Current psychological interventions for psychosis focus primarily on cognitive and behavioural management of delusions and hallucinations, with modest outcomes. Emotions are not usually targeted directly, despite evidence that people with psychosis have difficulty identifying, accepting and modifying affective states.

AIMS

This study assessed the impact of emotion regulation skills practice on affect and paranoia in seven people who met criteria for a diagnosis of schizophrenia or schizoaffective disorder.

METHOD

The study utilised a single case ABA design and measured emotion regulation skills, affect and paranoia over baseline, intervention and withdrawal of intervention phases. We predicted that eight sessions of skills rehearsal would lead to improved emotion regulation, reduced negative affect, increased positive affect, and reduced paranoia.

RESULTS

Most participants were able to learn to regulate their emotions, and reported reduced negative affect and paranoia. There was no clear pattern of change for positive affect.

CONCLUSIONS

These findings suggest that emotion can be targeted in psychosis, and is associated with reduced paranoia. Emotion regulation may constitute a key treatment target in cognitive behavioural therapy for psychosis.

Global emotion dysregulation and maladaptive cognitive emotion regulation strategies mediate the effects of severe trauma on depressive and positive symptoms in early non-affective psychosis

BACKGROUND

Previous research has shown that childhood trauma contributes to the onset and maintenance of psychosis. However, few studies have accounted for the effects of lifetime trauma and post-traumatic stress disorder (PTSD), and none have examined the mediating role of emotion dysregulation in symptom maintenance after severe trauma. The purpose of this study is to determine whether maladaptive cognitive emotion regulation strategies (CERS) and global emotion dysregulation mediate the effects of probable PTSD on depressive symptoms, and whether this pathway extends to influence positive symptoms in patients with early non-affective psychotic disorders.

METHODS

A total of 150 outpatients with early non-affective psychosis were assessed for trauma exposure, DSM-5 PTSD symptoms, CERS, global emotion dysregulation, and current depressive and positive symptoms. Parallel and serial mediation analyses based on ordinary least squares regressions were used to test the hypothesized models.

RESULTS

Mediation analyses controlling for gender, psychiatric comorbidities, antipsychotic medication dosage, duration of untreated psychosis (DUP), family history of mental illness, and cumulative trauma revealed that maladaptive CERS (rumination, catastrophic thinking, and self-blame) and global emotion dysregulation mediated the effects of probable PTSD on depressive symptoms (R² = 41%), while maladaptive CERS, global emotion dysregulation, and depressive symptoms mediated the effects of probable PTSD on positive symptoms (R² = 30%).

CONCLUSIONS

Our results demonstrate the indirect effects of maladaptive CERS and global emotion dysregulation on maintaining depressive and positive symptoms. Emotion dysregulation may be a potential transdiagnostic treatment target to alleviate depressive and positive symptoms in traumatized patients with early non-affective psychosis.

Maladaptive cognitive emotion regulation strategies and positive symptoms in schizophrenia spectrum disorders: The mediating role of global emotion dysregulation

Previous studies have identified a positive association between maladaptive cognitive emotion regulation strategies and positive symptoms (e.g., hallucinations and delusions) among patients with schizophrenia spectrum disorders. However, translating this finding to clinical practice is challenging. Some patients are reported to experience difficulties in correcting the use of maladaptive cognitive emotion regulation strategies in psychological therapy, which may be due to an underlying effect of global emotion dysregulation. Therefore, the present study aimed to determine the mediating or moderating role of global emotion dysregulation in the relationship between maladaptive cognitive emotion regulation strategies and positive symptoms. A total of 123 newly diagnosed patients with schizophrenia spectrum disorders completed self-report measures of maladaptive cognitive emotion regulation strategies (rumination, catastrophic thinking, self-blame, other-blame) and global emotion dysregulation. The severity of positive symptoms was rated on the Brief Psychiatric Rating Scale-Expanded. Mediation and moderation analyses were performed to test the hypothesized models. Mediation analysis revealed that global emotion dysregulation mediated the relationship between maladaptive cognitive emotion regulation strategies and positive symptoms after controlling for age, gender, ethnicity, duration of untreated psychosis, medication dosage, psychiatric comorbidities, and family history of mental illness (R² = 23.3%, moderate effect size = 0.30). There was no moderating effect of global emotion dysregulation. The present study presents preliminary evidence on the mediating role of global emotion dysregulation in the relationship between maladaptive cognitive emotion regulation strategies and positive symptoms in schizophrenia spectrum disorders. This finding adds to our current understanding on emotion regulation phenomena in schizophrenia spectrum disorders.