ODDITY METHOD

A procedure for testing the ability to use concepts. A subject is presented with three or more items to see if he can pick...

OEDIPUS COMPLEX (Oedipus Situation)

In psychoanalytic theory, the erotic attachment of the son for the mother, accompanied by attitudes of rivalry and hostility toward the father. The corresponding...

OLIGOPHRENIA (literally, “small mentality”)

A term for mental retardation or mental deficiency, more commonly used in Europe than the United States. Until recently the term appeared in the...

ONANISM

Sexual intercourse with withdrawal just before ejaculation; coitus interruptus.The term derives from the Bible (Genesis 38:9): “And Onan knew that the seed should not...

ONLY CHILDREN (Onliness)

Attitudes toward the only child are still influenced by the opinions of an earlier day. Among the most frequently quoted statements is one by...

ORAL CHARACTER

In psychoanalytic theory, a pattern of personal traits determined by drives originating in the oral stage of psychosexual development.The oral character stems from the...

ORGANIC SENSES

Sensitivity to changes occurring inside the body through receptors located in the internal organs.A great deal of activity is constantly taking place in the...

OLFACTORY CILIUM

a hair-like construct stemming from an olfactory receptor.

OLIGO- (OLIG-)

combining form of: not many, or deficient.

ON-CENTER BIPOLAR CELL

a retinal bipolar cell which is aroused by light in the core of its recep tive region but is hindered by light in the...

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