Dementia is a syndrome characterized by cognitive and non-cognitive symptoms. This book focuses on the clinically distinct categories of non-cognitive symptoms. These are grouped together under the umbrella term Behavioural and Psychological Symptoms in Dementia (BPSD). BPSD include agitation (describing a cluster of related symptoms including anxiety, irritability and motor restlessness, often leading to behaviours such as wandering, pacing, aggression, shouting and night-time disturbances), psychosis (referring to three main categories of symptoms: hallucinations, delusions and delusional...