ABULIA

Loss of the ability to perform voluntary actions and make decisions. The term is usually reserved for extreme cases in which a patient manifests...

ACATHISIA (AKATHISIA, AKATIZIA)

While this term literally means “not sitting,” and was originally applied to an impaired ability to sit down or sit still, it is now...

ACHIEVEMENT TESTS

Tests designed to measure knowledge or skill attained through training in a specific subject or area. Achievement tests are usually grouped into two categories:...

ACROCEPHALY

A disorder characterized by an exceptionally high skull and severe mental retardation. In one syndrome (Crouzon) these symptoms are associated with exophthalmos (protruding eyes),...

ACTIVE PSYCHOTHERAPY

A treatment procedure in which the patient is directed to make a graduated series of changes in his behavior. Active psychotherapy was developed by...

ACT PSYCHOLOGY

Formulated by the German philosopher Franz Bren- tano (1838-1917) in 1874, this approach proposed to focus psychological investigation on psychic acts rather than psychic...

ADOLESCENCE (Theories)

Adolescence is probably the most controversial of all periods of human development. Since the beginning of this century literally dozens of theories have been...

ADRENAL GLANDS

A pair of endocrine glands, located above the kidneys, which secrete hormones that control emotional reactions and basic life processes such as metabolism, blood...

AEROPHAGIA (Aerophagy)

This term means, literally, “air-eating,” and applies to automatic swallowing or gulping of air as a psychiatric symptom.Excessive swallowing of air is observed in...

AFFECTIONAL DRIVE

The urge to be close to and in contact with another living being; usually classified as a “general drive,” that is, one that is...

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