HALL, G. (GLANVILLE) STANLEY

Hall, a pioneer in educational psychology, was bom in Massachusetts, and graduated from Williams College.He then attended the Union Theological Seminary and the University...

HEARING (AUDITION)

Despite the claim that 90 per cent of our information input is visual, hearing is a close second to vision in terms of knowledge...

HELMHOLTZ, HERMANN LUDWIG FERDINAND VON (1821-94)

This remarkably versatile scientist, who made many pioneering contributions to physiological psychology, was bom in Potsdam, Germany, and was educated at the Friedrich-Wilhelm Institute...

HEAD INJURY (ACUTE TRAUMATIC DISORDERS)

A temporary impairment of brain functions immediately following a severe blow to the head.The problem of head injury has been on the increase in...

HYPOMANIC PERSONALITY

A personality pattern disturbance characterized by a mild degree of exhilaration and overactivity Hypomanics are enthusiastic, gregarious, lively individuals constantly overflowing with ideas, emotions,...

HYPERVENTILATION SYNDROME

A psychophysiologic (psychosomatic) disorder of the respiratory system characterized by repeated anxiety attacks accompanied by “overbreathing”—that is, the patient breathes rapidly and deeply even...

HYPNAGOGIC STATE

The drowsy, trancelike state between sleeping and waking.During the hypnagogic period some people experience transient, dreamlike fantasies which have been termed hypnagogic hallucinations. Suggestibility...

HYPERMNESIA

Extreme retentiveness of memory, excessive memory activity, or unusual clarity of memory images.Hypermnesia occasionally occurs in normal individuals who are undergoing great stress pr...

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...

HYPOGLYCEMIA, IDIOPATHIC

Aform of hypoglycemia, or low blood- sugar level, that occasionally runs in families.Children who are afflicted with this disorder not only show the usual...

Latest news