Talking through trauma: new therapy tested for psychosis relief

Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.

Inclusion Criteria: For the purposes of this study the term 'psychosis' covers a range of conditions recognised in standard diagnostic systems such as the Diagnostic and Statistical Manual of Mental Disorders - Fifth Edition (DSM-5; APA, 2013) and the International Classification of Diseases - Eleventh Revision (ICD-11; WHO, 2018). Examples include, but are not limited to: * Schizophrenia Spectrum and Other Psychotic Disorders * Schizophrenia * Schizoaffective Disorder * Brief Psychotic Disorder * Delusional Disorder * Substance/Medication-Induced Psychotic Disorder * Postpartum (Postnatal) Psychosis Individuals will be eligible to take part in the study if they meet all of the following: * Age - between 18 and 65 years old. * Language - able to speak and understand English well enough to take part in the research activities. * Diagnosis - have a psychosis-related diagnosis as defined above. * Trauma history - have experienced more than one traumatic event in their lifetime. A traumatic event means something that was deeply distressing, frightening, or life-threatening, such as abuse, assault, serious accident, disaster, or war. * Current care - are under the care of a Local Mental Health Team (LMHT) within Nottinghamshire Healthcare NHS Foundation Trust and on the Care Programme Approach (CPA) pathway. CPA is an NHS care plan for people with complex mental health needs, setting out the support they will receive and who will provide it. * Mobility - can travel independently to an NHS clinic or can be supported to attend. * Consent - able to understand the study information and give informed consent to take part (in line with the Mental Capacity Act, 2005). Exclusion Criteria: People will not be able to take part in the study if any of the following apply * Recent change in antipsychotic medication - If the person has recently started, stopped, or changed their antipsychotic medication. This is because there are no specific medical tests ("biomarkers") to predict how someone will respond to a new medication, and the effects can vary greatly between individuals. The first few weeks after a medication change can be a time of increased risk for worsening symptoms or relapse. Research also shows that stopping and starting medication can temporarily affect thinking skills such as memory and attention. Recent serious mental health crisis - If the person has experienced a significant adverse event within the last three months, such as: * A suicide attempt * A hospital admission for mental health reasons This is because there is currently little research on how trauma-focused therapy affects people with severe mental illness who have recently been suicidal, and starting therapy too soon after a crisis may not be safe. Currently receiving another structured psychological therapy - For example, Cognitive Behavioural Therapy (CBT) or another regular talking therapy programme. This is to ensure that the results of the study reflect the effects of Narrative Exposure Therapy (NET) alone, without being influenced by another therapy.