Editorial: Design and Implementation of Rehabilitation Interventions for People With Complex Psychosis

Introduction Between one fifth and one quarter of people who become unwell with a psychotic disorder will develop particularly complex problems (1). These include severe, treatment-resistant symptoms and cognitive impairments that affect motivation, organizational, and social skills. Co-existing mental, neurodevelopmental, and physical health conditions can often complicate recovery further, and up to three quarters have been found to be vulnerable to self-neglect and/or exploitation by others (2). Despite their high levels of need, this group has been missing from recent mental health policy internationally, resulting in inadequate treatment and, worryingly, increasing levels of institutionalization (3). The publication in 2020 of the first National Institute for Health and Care Excellence (NICE) Guideline on the mental health rehabilitation of adults with complex psychosis (4) is therefore a very welcome and important milestone, but there is an ongoing, urgent need for research to identify effective interventions for this group. In this Research Topic we aimed to collate relevant work that can help to address this evidence gap