Canadian Medical Guide > Psychiatry and Psychology > Mental Disorders > Personality Disorders Terms and Definitions

Personality Disorders

Medical Definition:	A major deviation from normal patterns of behavior.
Also Called:	As If Personality,Avoidant Personality Disorder,Impulse-Ridden Personality,Inadequate Personality,Narcissistic Personality Disorder
Previously Indexed:	Mental Disorders (1966-1967),Personality (1966-1967)

Personality Disorders Categories.

	Antisocial Personality Disorder - A personality disorder whose essential feature is a pervasive pattern of disregard for, and violation of, the rights of others that begins in childhood or early adolescence and continues into adulthood. The individual must be at least age 18 and must have a history of some symptoms of CONDUCT DISORDER before age 15. (From DSM-IV, 1994)
	Borderline Personality Disorder - A personality disorder marked by a pattern of instability of interpersonal relationships, self-image, and affects, and marked impulsivity beginning by early adulthood and present in a variety of contexts. (DSM-IV)
	Compulsive Personality Disorder - A personality disorder characterized by an emotionally constricted manner that is unduly conventional, serious, formal, and stingy, by preoccupation with trivial details, rules, order, organization, schedules, and lists, by stubborn insistence on having things one's own way without regard for the effects on others, by excessive devotion to work and productivity to the detriment of interpersonal relationships, and by indecisiveness due to fear of making mistakes. (Dorland, 27th ed)
	Dependent Personality Disorder - A personality disorder characterized by a pervasive and excessive need to be taken care of that leads to submissive and clinging behavior and fears of separation, beginning by early adulthood and present in a variety of contexts. (From DSM-IV, 1994)
	Histrionic Personality Disorder - A personality disorder characterized by overly reactive and intensely expressed or overly dramatic behavior, proneness to exaggeration, emotional excitability, and disturbances in interpersonal relationships.
	Paranoid Personality Disorder - A personality disorder characterized by the avoidance of accepting deserved blame and an unwarranted view of others as malevolent. The latter is expressed as suspiciousness, hypersensitivity, and mistrust.
	Passive-Aggressive Personality Disorder - A personality disorder characterized by an indirect resistance to demands for adequate social and occupational performance; anger and opposition to authority and the expectations of others that is expressed covertly by obstructionism, procrastination, stubbornness, dawdling, forgetfulness, and intentional inefficiency. (Dorland, 27th ed)
	Schizoid Personality Disorder - A personality disorder manifested by a profound defect in the ability to form social relationships, no desire for social involvement, and an indifference to praise or criticism.
	Schizotypal Personality Disorder - A personality disorder in which there are oddities of thought (magical thinking, paranoid ideation, suspiciousness), perception (illusions, depersonalization), speech (digressive, vague, overelaborate), and behavior (inappropriate affect in social interactions, frequently social isolation) that are not severe enough to characterize schizophrenia.

Personality Disorders Medical Definitions and Terms

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