Glossolaly.—"Speaking with tongues," i.e., automatic utterance of words not belonging to any real language.
Hallucination.—Any sensory perception which has no objective counterpart within the field of vision, hearing, etc., is termed a hallucination.
Heteræsthesia.—A form of sensibility decidedly different from any of those which can be referred to the action of the known senses.
Hyperboulia.—Increased power over the organism,—resembling the power which we call will when it is exercised over the voluntary muscles,—which is seen in the bodily changes effected by self-suggestion.
Hyperæsthesia.—Unusual acuteness of the senses.
Hypermnesia.—"Over-activity of the memory; a condition in which past acts, feelings, or ideas are brought vividly to the mind, which, in its normal condition, has wholly lost the remembrance of them." (Tuke's Dict.)
*Hyperpromethia.—Supernormal power of foresight.
Hypnagogic.—Illusions hypnagogiques (Maury) are the vivid illusions of sight or sound—"faces in the dark," etc.—which sometimes accompany the oncoming of sleep. To similar illusions accompanying the departure of sleep, as when a dream-figure persists for a few moments into waking life, I have given the name *hypnopompic.
Hypnogenous zones.—Regions by pressure on which hypnosis is induced in some hysterical persons.