A category of behavioural disorders marked by persistent patterns of aggression, deceitfulness, or rule-breaking, often seen in children and adolescents.
A category of disorders involving intense and persistent sexual interests that may involve atypical objects, situations, or individuals, e.g, exhibitionism, voyeurism, frotteurism.
Class of disorders involving a decline in functions like memory, reasoning, or language, typically due to brain injury, disease, or aging.
The presence of two or more disorders occurring in the same person, often interacting to complicate diagnosis and treatment.
A group of disorders involving preoccupations with food, body weight, and shape, leading to maladaptive behaviours around nutrition.
A category of disorders involving sudden disruptions in memory, identity, or consciousness, e.g. "multiple personality disorder" (DID).
Disorders involving intrusive, unwanted thoughts and repetitive behaviours or mental acts aimed at reducing distress e.g., hair-pulling disorder, skin-picking disorder.
The identification and classification of a disorder based on a systematic evaluation of symptoms and criteria.
A category of disorders characterized by distorted thinking, perceptions, and a disconnection from reality, often including delusions or hallucinations e.g., schizophrenia.
The proportion of a population found to have a particular disorder at a specific time, useful for understanding how widespread the disorder is.
An approach to diagnosis that views symptoms on a continuum or spectrum, rather than as distinct categories.