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These findings suggest that a deficit of grey matter in the salience network leads to an impaired attribution of salience to stimuli that is associated with delusions and hallucinations in schizophrenia.

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SummaryWith the subspecialisation of psychiatry in the UK, clinicians encounter problems at the interfaces between specialties. These can lead to tension between clinicians, which can be unhelpful to the clinical care of the patient. This article focuses on the interface between general and forensic psychiatry in England and Wales. The pattern of mental health services in England and Wales differs to an extent from those in Scotland, Northern Ireland and in the Republic of Ireland. Consequently, the interface between general and forensic psychiatry is subject to varying influences. Important interface issues include: the definition of a ‘forensic patient’; the remit and organisation of services; resources; clinical responsibility; and care pathways. This article also discusses a general overview of how to improve collaboration between forensic and general adult psychiatric services.Learning Objectives•Develop an understanding of important issues at the forensic/general adult psychiatry interface.•Be aware of areas of conflict that may arise at the forensic/general adult psychiatry interface.•Be aware of options for optimum cooperation at the interface.

SUMMARY Delusional infestation (delusional parasitosis) is a relatively rare condition but it has been of interest to a wide range of professionals, including entomologists, zoologists and dermatologists, as patients predominantly seek help from specialties other than psychiatrists. The illness requires a multidisciplinary approach and a strong bond of trust between the treating clinician and the patient to ensure the best possible outcome. This article discusses how clinicians in all specialties should approach patients presenting with the disorder and outlines differential diagnosis and associated laboratory tests. It considers the evidence base for treatment and the success of psychodermatology clinics that provide a ‘neutral setting’ for consultation to address the problem of patients’ non-engagement. Such clinics are few, and there is a need to develop disease-specific pathways in primary care and hospital settings to improve prognosis.