HALLUCINOGEN

A drug or other substance that is capable of producing hallucinationsAlthough hallucinogenic chemicals have been utilized for both experimental and therapeutic purposes in Western...

HEARING

Theories of hearing must explain both the wide range of pitch—from 20 to 20,000 cycles per second—and the full range of intensity or loudness...

HUNTINGTON’S CHOREA

A rare degenerative disease of the central nervous system, characterized by choreiform movements and mental deterioration.Huntington’s chorea was named after the American neurologist, George...

HEAD INJURY (CHRONIC TRAUMATIC DISORDERS)

A permanent or relatively permanent impairment inHEAD INJURY (CHRONIC TRAUMATIC DISORDERS)brain functions resulting from a severe blow to the head. Chronic, or “post- traumatic,”...

HOARDING

The drive to save appears to be a dominating characteristic in certain individuals. Such people derive basic satisfaction simply from accumulating money or objects...

HOLISM

A general approach to human behavior based on the view that man is a unified organism in whom biological, psychological, and sociocultural aspects are...

HOMOSEXUALITY (Female)

Homosexuality is considerably less prevalent among women than among men. In the Kinsey studies (1948, 1953), 28 per cent of women, as contrasted with...

HORNEY, KAREN (1885-1952)

as a Freudian analyst. She came to this country in the early 1930s, and soon after founded an association and training institute which she...

HALLUCINATION

A false perception occurring without external stimulation: seeing, hearing, tasting, smelling or feeling things that are not there. Transient hallucinations may occur in healthy...

HYPOCHONDRIASIS

Persistent, excessive concern with one’s state of healthaccompanied by various bodily complaints even though no organic pathology can be found.The reaction may be focused...

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