Objective Increasing evidence suggests experiences of childhood trauma may be causally related to the development of hallucinations. Cognitive theories of psychosis suggest post‐traumatic intrusions to be a primary mechanism in this relationship. These theories predict that the content of hallucinations will be related to traumatic experiences; however, few studies have investigated this. This study examined the relationship between childhood trauma, the content of hallucinations, and the content of post‐traumatic intrusions in a sample with first‐episode psychosis. Methods Sixty‐six young people aged 15–25 experiencing a first episode of psychosis were recruited from an early intervention service. Participants completed assessments of traumatic experiences, hallucination content, and post‐traumatic intrusion content using a systematic coding frame. The coding frame assessed for three types of relationships between traumatic experiences, the content of hallucinations, and the content of post‐traumatic intrusions: direct relationships (hallucination content exactly matching the trauma/intrusion), thematic relationships (hallucinations with the same themes as the trauma/intrusion), and no relationship (hallucination and trauma/intrusion content unrelated). Results Of those people who reported trauma and hallucinations (n = 36), 22 of these (61%) experienced post‐traumatic intrusions, and of these, 16 (73%) experienced hallucinations that were directly or thematically related to their post‐traumatic intrusions. Twelve people experienced hallucination content directly related to their trauma, six of whom (50%) also had intrusions relating to the same traumatic event as their hallucinations. Conclusions The finding that some people experience hallucinations and post‐traumatic intrusions relating to the same traumatic event supports theories proposing a continuum of memory intrusion fragmentation. These results indicate that early intervention services for young people with psychosis should provide assessment and intervention for trauma and PTSD and should consider the impact of past traumatic events on the content of current hallucinatory experience. Practitioner points Trauma and post‐traumatic stress disorder should be assessed in those experiencing a first episode of psychosis. Interventions for trauma should be offered in early intervention for psychosis services. In a notable proportion of people, hallucination content is related to traumatic experiences. Clinical assessment and formulation of hallucinations requires consideration of how past traumatic events may be contributing to hallucinatory experience. It is important for clinicians to have an understanding of the phenomenological differences between hallucinations and post‐traumatic intrusions when conducting clinical assessments with people with comorbid psychosis and PTSD.

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Antipsychotic medication has been the mainstay of treatment for psychotic illnesses for over 60 years. This has been associated with improvements in positive psychotic symptoms and a reduction in relapse rates. However, there has been little improvement in functional outcomes for people with psychosis. At the same time there is increasing evidence that medications contribute to life shortening metabolic and cardiovascular illnesses. There is also uncertainty as to the role played by antipsychotic medication in brain volume changes. Aim The primary aim of the study is, in a population of young people with first‐episode psychosis, to compare functional outcomes between an antipsychotic dose reduction strategy with evidence‐based intensive recovery treatment (EBIRT) group (DRS+) and an antipsychotic maintenance treatment with EBIRT group (AMTx+) at 24‐months follow‐up. Methods Our single‐blind randomized controlled trial, within a specialist early psychosis treatment setting, will test the whether the DRS+ group leads to better vocational and social recovery than, the AMTx+ group over a 2‐year period in 180 remitted first‐episode psychosis patients. Additionally, we will examine the effect of DRS+ vs AMTx+ on physical health, brain volume and cognitive functioning. This study will also determine whether the group receiving DRS+ will be no worse off in terms of psychotic relapses over 2 years follow‐up. Results This paper presents the protocol, rationale and hypotheses for this study which commenced recruitment in July 2017. Conclusion This study will provide evidence as to whether an antipsychotic dose‐reduction recovery treatment leads to improved functioning and safer outcomes in first‐episode psychosis patients. In addition, it will be the first‐controlled experiment of the effect of exposure to antipsychotic maintenance treatment on brain volume changes in this population.

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Objective Quantitative evidence suggests that a subset of individuals with anorexia nervosa (AN) may hold beliefs pertaining to food, body image, and appearance that are delusional in nature. The present study extended this research through qualitatively exploring beliefs held by AN patients and the consequences of holding such beliefs. Method Five participants receiving inpatient treatment for AN took part in semi‐structured interviews, which were transcribed and analysed according to the principles of interpretative phenomenological analysis. Results Two superordinate themes emerged: “Delusion‐like beliefs,” which detailed participants’ conviction that their bodies responded to food and exercise differently to others and thus they must engage in disordered behaviours to remain at a normal weight; and “Process,” which captured the ways in which participants maintained their beliefs and addressed their variable relationship with insight. Conclusions The current findings suggest that anorectic cognitions can take a delusional quality and thus may not be overvalued ideas only.

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Clinicians need to provide mental state information to an adequate standard that would allow confirmation of a diagnosis of delusions of infestation or exclude other possibilities.

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