Trauma therapies for psychosis: A state-of-the-art review.

BACKGROUND: Traumatic events, particularly childhood interpersonal victimisation, have been found to play a causal role in the occurrence of psychosis and shape the phenomenology of psychotic experiences. Higher rates of post-traumatic stress disorder (PTSD) and other trauma-related mental health problems are also found in people with psychosis diagnoses compared to the general population. It is, therefore, imperative that therapists are willing and able to address trauma and its consequences when supporting recovery from distressing psychosis. METHOD: This paper will support this need by providing a state-of-the-art overview of the safety, acceptability and effects of trauma therapies for psychosis. RESULTS: We will first introduce how seminal cognitive-behavioural models of psychosis shed light on the mechanisms by which trauma may give rise to psychotic experiences, including a putative role for trauma-related emotions, beliefs and episodic memories. The initial application of prolonged exposure and eye movement and desensitation and reprocessing therapy (EMDR) for treating PTSD in psychosis will be described, followed by consideration of integrative approaches. These integrative approaches aim to address the impact of trauma on both post-traumatic stress symptoms and trauma-related psychosis. Integrative approaches include EMDR for psychosis (EMDRp) and trauma-focused Cognitive-Behavioural Therapy for psychosis (tf-CBTp). Finally, emerging dialogic approaches for targeting trauma-related voice-hearing will be considered, demonstrating the potential value of adopting co-produced (Talking with Voices) and digitally augmented (AVATAR) therapies. CONCLUSION: We will conclude by reflecting on current issues in the area, and implications for research and clinical practice.

Multisite randomised controlled trial of trauma-focused cognitive behaviour therapy for psychosis to reduce post-traumatic stress symptoms in people with co-morbid post-traumatic stress disorder and psychosis, compared to treatment as usual: study protocol for the STAR (Study of Trauma And Recovery) trial.

BACKGROUND: People with psychosis have high rates of trauma, with a post-traumatic stress disorder (PTSD) prevalence rate of approximately 15%, which exacerbates psychotic symptoms such as delusions and hallucinations. Pilot studies have shown that trauma-focused (TF) psychological therapies can be safe and effective in such individuals. This trial, the largest to date, will evaluate the clinical effectiveness of a TF therapy integrated with cognitive behaviour therapy for psychosis (TF-CBTp) on post-traumatic stress symptoms in people with psychosis. The secondary aims are to compare groups on cost-effectiveness; ascertain whether TF-CBTp impacts on a range of other meaningful outcomes; determine whether therapy effects endure; and determine acceptability of the therapy in participants and therapists. METHODS: Rater-blind, parallel arm, pragmatic randomised controlled trial comparing TF-CBTp + treatment as usual (TAU) to TAU only. Adults (N = 300) with distressing post-traumatic stress and psychosis symptoms from five mental health Trusts (60 per site) will be randomised to the two groups. Therapy will be manualised, lasting 9 months (m) with trained therapists. We will assess PTSD symptom severity (primary outcome); percentage who show loss of PTSD diagnosis and clinically significant change; psychosis symptoms; emotional well-being; substance use; suicidal ideation; psychological recovery; social functioning; health-related quality of life; service use, a total of four times: before randomisation; 4 m (mid-therapy); 9 m (end of therapy; primary end point); 24 m (15 m after end of therapy) post-randomisation. Four 3-monthly phone calls will be made between 9 m and 24 m assessment points, to collect service use over the previous 3 months. Therapy acceptability will be assessed through qualitative interviews with participants (N = 35) and therapists (N = 5-10). An internal pilot will ensure integrity of trial recruitment and outcome data, as well as therapy protocol safety and adherence. Data will be analysed following intention-to-treat principles using generalised linear mixed models and reported according to Consolidated Standards of Reporting Trials-Social and Psychological Interventions Statement. DISCUSSION: The proposed intervention has the potential to provide significant patient benefit in terms of reductions in distressing symptoms of post-traumatic stress, psychosis, and emotional problems; enable clinicians to implement trauma-focused therapy confidently in this population; and be cost-effective compared to TAU through reduced service use. TRIAL REGISTRATION: ISRCTN93382525 (03/08/20).

The digital divide: factors impacting on uptake of remote therapy in a South London psychological therapy service for people with psychosis.

BACKGROUND: Remote therapy promises a cost-effective way of increasing delivery of psychological-therapy in underserved populations. However, research shows a "digital divide", with some groups experiencing digital exclusion. AIMS: To assess whether technology, accessibility, and demographic factors influence remote therapy uptake among individuals with psychosis, and whether demographic factors are associated with digital exclusion. METHODS: Remote therapy uptake and demographics were assessed in people (n = 51) within a psychology-led service for psychosis, using a survey of access to digital hardware, data and private space. RESULTS: The majority of individuals had access to digital devices, but 29% did not meet minimum requirements for remote therapy. Nineteen (37%) individuals declined remote therapy. Those who accepted were significantly younger and more likely to have access to technology than those who declined. The mean age of those with access to smartphones and large screen devices was younger than those without access. CONCLUSIONS: A subgroup of people with psychosis face barriers to remote therapy and a significant minority are digitally excluded. Older age is a key factor influencing remote therapy uptake, potentially related to less access to digital devices. Services must minimize exclusion through provision of training, hardware and data, whilst promoting individual choice.

Integrated Trauma-Focused Cognitive-Behavioural Therapy for Post-traumatic Stress and Psychotic Symptoms: A Case-Series Study Using Imaginal Reprocessing Strategies.

Despite high rates of trauma in individuals with psychotic symptoms, post-traumatic stress symptoms are frequently overlooked in clinical practice. There is also reluctance to treat post-traumatic symptoms in case the therapeutic procedure of reprocessing the trauma exacerbates psychotic symptoms. Recent evidence demonstrates that it is safe to use reprocessing strategies in this population. However, most published studies have been based on treating post-traumatic symptoms in isolation from psychotic symptoms. The aims of the current case series were to assess the acceptability, feasibility, and preliminary effectiveness of integrating cognitive-behavioural approaches for post-traumatic stress and psychotic symptoms into a single protocol. Nine participants reporting distressing psychotic and post-traumatic symptoms were recruited from a specialist psychological therapies service for psychosis. Clients were assessed at five time points (baseline, pre, mid, end of therapy, and at 6+ months of follow-up) by an independent assessor on measures of current symptoms of psychosis, post-traumatic stress, emotional problems, and well-being. Therapy was formulation based and individualised, depending on presenting symptoms and trauma type. It consisted of five broad, flexible phases, and included imaginal reprocessing strategies (reliving and/or rescripting). The intervention was well received, with positive post-therapy feedback and satisfaction ratings. Unusually for this population, no-one dropped out of therapy. Post therapy, all but one (88% of participants) achieved a reliable improvement compared to pre-therapy on at least one outcome measure: post-traumatic symptoms (63%), voices (25%), delusions (50%), depression (50%), anxiety (36%), and well-being (40%). Follow-up assessments were completed by 78% (n = 7) of whom 86% (n = 6) maintained at least one reliable improvement. Rates of improvements following therapy (average of 44% across measures post therapy; 32% at follow-up) were over twice those found during the waiting list period (19%). No participant indicated a reliable worsening of any symptoms during or after therapy. The study shows that an integrative therapy incorporating reprocessing strategies was an acceptable and feasible intervention for this small sample, with promising effectiveness. A randomised controlled trial is warranted to test the efficacy of the intervention for this population.

Psychological Interventions for Post-traumatic Stress Symptoms in Psychosis: A Systematic Review of Outcomes.

Individuals with severe mental health problems, such as psychosis, are consistently shown to have experienced high levels of past traumatic events. They are also at an increased risk of further traumatisation through victimization events such as crime and assault. The experience of psychosis itself and psychiatric hospitalization have also been recognized to be sufficiently traumatic to lead to the development of post-traumatic stress (PTS) symptoms. Rates of post-traumatic stress disorder (PTSD) are elevated in people with psychosis compared to the general population. The current guidance for the treatment of PTSD is informed by an evidence base predominately limited to populations without co-morbid psychiatric disorders. The systematic review therefore sought to present the current available literature on the use of psychological treatments targeting PTS symptoms in a population with a primary diagnosis of a psychotic disorder. The review aimed to investigate the effect of these interventions on PTS symptoms and also the effect on secondary domains such as psychotic symptoms, affect and functioning. Fifteen studies were identified reporting on cognitive behavior therapy, prolonged exposure, eye movement desensitisation and reprocessing and written emotional disclosure. The review provides preliminary support for the safe use of trauma-focused psychological interventions in groups of people with severe mental health problems. Overall, the interventions were found to be effective in reducing PTS symptoms. Results were mixed with regard to secondary effects on additional domains. Further research including studies employing sufficiently powered methodologically rigorous designs is indicated.

The role of shame in people with a diagnosis of schizophrenia.

OBJECTIVES: To examine the role of shame and its relationship to depression in schizophrenia. It was predicted that individuals with a diagnosis of schizophrenia would exhibit higher levels of shame due to the stigma associated with their diagnosis, independently of depression levels, compared with psychiatric and medical control groups. DESIGN: Cross-sectional design with three groups: individuals with a diagnosis of (1) schizophrenia, (2) depression, and (3) rheumatoid arthritis. METHODS: Sixty individuals participated in the study (20 per group). Groups were compared on questionnaires assessing external shame, trait shame and guilt, and depression. RESULTS: The pattern of group differences depended on the type of shame measure used. Both the schizophrenia and depression groups exhibited higher levels of external shame, or seeing others as shaming, than the medical group. For individuals with schizophrenia, seeing others as shaming was associated with higher levels of depression, a relationship not found in either control group. They also showed lower levels of trait guilt and shame (at trend level), compared with both control groups. No difference was found between the groups on depression, suggesting that the observed differences were not attributable to differences in levels of depression. CONCLUSIONS: The findings highlight the importance of shame in schizophrenia, especially the link between seeing other people as shaming and depression, which was unique to this group. These results suggest that stigma associated with a diagnosis of mental illness, and schizophrenia in particular, has negative emotional consequences that may impede recovery, and should be addressed by psychological and social interventions. PRACTITIONER POINTS: Clinical implications Individuals with a diagnosis of mental illness (schizophrenia or depression) are more likely to experience others as shaming than those diagnosed with a physical illness, irrespective of current levels of depression and proneness to shame. There is a specific association between external shame and depression in individuals diagnosed with schizophrenia, suggesting the need for interventions levelled both at the individual's illness appraisals, and at social stigma relating to schizophrenia. Limitations of the study The participant numbers were low in each group. The three groups could not be matched on all variables. No additional internalized-stigma measure was used.

Posttraumatic stress symptoms (PTSS) in caregivers of people with psychosis and associations with caregiving experiences.

OBJECTIVE: Posttraumatic stress symptoms (PTSS) have been identified in caregivers of people with psychosis, but their clinical correlates are less well known. This study aimed to assess PTSS in a sample of caregivers of people with psychosis and to examine the relationship between PTSS and caregiving experiences. METHOD: A total of 32 caregivers of people with psychosis completed self-report questionnaires and structured interviews assessing PTSS and caregiving processes, including expressed emotion, burden, and coping. RESULTS: In all, 44% of the sample reported PTSS, which were associated with caregiver reports of burden and less adaptive (avoidant) coping. No links were observed with expressed emotion in this sample. CONCLUSION: Almost half of caregivers of people with psychosis reported PTSS related to their caring role, which may have implications for their caregiving experiences and coping efforts. The findings highlight the importance of assessing need in caregivers and optimizing opportunities to offer needs-led therapeutic interventions to caregivers.

The long-term effectiveness of cognitive behavior therapy for psychosis within a routine psychological therapies service.

Randomised controlled trials (RCTs) have shown the efficacy of CBTp, however, few studies have considered its long-term effectiveness in routine services. This study reports the outcomes of clients seen in a psychological therapies clinic, set up following positive results obtained from an RCT (Peters et al., 2010). The aims were to evaluate the effectiveness of CBTp, using data from the service's routine assessments for consecutive referrals over a 12 years period, and assess whether gains were maintained at a 6+ months' follow-up. Of the 476 consenting referrals, all clients (N = 358) who received ≥5 therapy sessions were offered an assessment at four time points (baseline, pre-, mid-, and end of therapy) on measures assessing current psychosis symptoms, emotional problems, general well-being and life satisfaction. A sub-set (N = 113) was assessed at a median of 12 months after finishing therapy. Following the waiting list (median of 3 months) clients received individualized, formulation-based CBTp for a median number of 19 sessions from 121 therapists with a range of experience receiving regular supervision. Clients showed no meaningful change on any measure while on the waiting list (Cohen's d <= 0.23). In contrast, highly significant improvements following therapy, all of which were significantly greater than changes during the waiting list, were found on all domains assessed (Cohen's d: 0.44-0.75). All gains were maintained at follow-up (Cohen's d: 0.29-0.82), with little change between end of therapy and follow-up (Cohen's d <= 0.18). Drop-out rate from therapy was low (13%). These results demonstrate the positive and potentially enduring impact of psychological therapy on a range of meaningful outcomes for clients with psychosis. The follow-up assessments were conducted on only a sub-set, which may not generalize to the full sample. Nevertheless this study is the largest of its kind in psychosis, and has important implications for the practice of CBTp in clinical services.

Nightmares in Patients With Psychosis: The Relation With Sleep, Psychotic, Affective, and Cognitive Symptoms.

OBJECTIVE: To examine the prevalence of nightmares in people with psychosis and to describe the link between nightmares and sleep quality, psychotic, affective, and cognitive symptoms. METHODS: Forty participants with psychotic symptoms completed an assessment of nightmares, sleep quality, positive symptoms of psychosis, affect, posttraumatic stress, social functioning, and working memory. RESULTS: Among the patients, 55% reported weekly distressing nightmares. Experience of more frequent nightmares was related to poorer sleep quality and sleep efficiency. More distressing nightmares were positively associated with greater delusional severity, depression, anxiety, stress, and difficulties with working memory. CONCLUSIONS: Nightmares might be common in those with psychosis and are associated with increased day- and nighttime impairment. Future research should investigate treatments for nightmares, for people presenting with psychotic symptoms.

The use of rescripting imagery for people with psychosis who hear voices.

BACKGROUND: Image rescripting can be helpful in reducing the distress associated with intrusive images or memories across a range of disorders. Existing studies using imagery rescripting with people with psychosis have not included people who hear voices. AIMS: This study aimed to explore the use of image rescripting with people with psychosis who have intrusive images or memories and hear voices. METHOD: This study used a one-off image rescripting session, using an A-B design with four participants with psychosis who were attending adult mental health community services. RESULTS: Clinically significant reductions in distress, negative affect and reduced conviction in the beliefs associated with the imagery were reported at 1-week follow-up and maintained for three of the four participants at 1-month follow-up. CONCLUSIONS: The study offers early indications that image rescripting can be used as a treatment approach for people with psychosis. Exploring visual imagery and rescripting visual memories where appropriate may be a useful extension of cognitive behavioural therapy for psychosis (CBTp).

Obsessive compulsive symptoms and the simulation of future negative events.

OBJECTIVES: To explore whether Kahneman and Tversky's (1982) simulation heuristic might help account for why the obsessions of people with obsessive compulsive disorder (OCD) are so compelling to them. It was predicted that participants would be better able to simulate a scenario relevant to a central OCD fear than they would scenarios related to other OCD and non-OCD fears and that how well participants simulated feared scenarios would be associated with higher ratings of subjective probability for that outcome and consequently greater worry. DESIGN: Individuals with obsessive compulsive symptoms mentally simulated hypothetical scenarios so as to enable comparison of a personally relevant to less relevant scenarios. METHODS: Thirty participants recruited from OCD support groups simulated four scenarios each and completed symptom and relevant construct measures. RESULTS: Personally relevant scenarios were better simulated than less relevant scenarios. 'Goodness of simulation' (GOS) was related to worry about the feared outcome, but this was not mediated by raised subjective probabilities. GOS correlated with OCD symptomatology, anxiety, and depression but not with cognitive variables thought to be related to OCD phenomenology. CONCLUSION: The overall findings converge with recent literature (O'Connor, 2002) emphasizing the importance of imagination and imaginary narratives in fuelling OCD symptoms.