Human Personality and Its Survival of Bodily Death. F. W. H. Myers
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or subliminal memory of events forgotten by the supraliminal self.
*Dextro-cerebral (opposed to *Sinistro-cerebral) of left-handed persons as employing preferentially the right hemisphere of the brain.
Diathesis.—Habit, capacity, constitutional disposition or tendency.
Dimorphism.—In crystals the property of assuming two incompatible forms: in plants and animals, difference of form between members of the same species. Used of a condition of alternating personalities, in which memory, character, etc., present themselves at different times in different forms in the same person.
Discarnate.—Disembodied, opposed to incarnate.
Disintegration of Personality.—Used of any condition where the sense of personality is not unitary and continuous: especially when secondary and transitory personalities intervene.
Dynamogeny.—The increase of nervous energy by appropriate stimuli, often opposed to inhibition.
Ecmnesia.—Loss of memory of a period of time.
*Entencephalic.—On the analogy of entoptic: of sensations, etc., which have their origin within the brain, not in the external world.
Eugenics.—The science of improving the race.
Falsidical.—Of hallucinations delusive, i.e., when there is nothing objective to which they correspond. The correlative term to veridical.
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.
*Hypnopompic.—See Hypnagogic.
Hysteria.—"A disordered condition of the nervous system, the anatomical seat and nature of which are unknown to medical science, but of which the symptoms consist in well-marked and very varied disturbances of nerve-function" (Ency. Brit.). Hysterical affections are not dependent on any discoverable lesion.
Hysterogenous zones.—Points or tracts on the skin of a hysterical person, pressure on which will induce a hysterical attack.
Ideational.—Used of impressions which display some distinct notion, but not of sensory nature.
Induced.—Of hallucinations, etc., intentionally produced.
Levitation.—A raising of objects from the ground by supposed supernormal means; especially of living persons.
Medium.—A person through whom communication is deemed to be carried on between living men and spirits of the departed. It is often better replaced by automatist or sensitive.
Message.—Used for any communication, not necessarily verbal, from one to another stratum of the automatist's personality, or from an external intelligence to the automatist's mind.
Metallæsthesia.—A form of sensibility alleged to exist which enables some hypnotised or hysterical subjects to discriminate between the contacts of various metals by sensations not derived from their ordinary properties of weight, etc.
Metastasis.—Change of the seat of a bodily function from one place (e.g., brain-centre) to another.
*Metetherial.—That which appears to lie after or beyond the ether: the metetherial environment denotes the spiritual or transcendental world in which the soul may be supposed to exist.
*Methectic.—Of communications between one stratum of a man's intelligence and another.
Mirror-writing (écriture renversée, Spiegel-schrift).—Writing so inverted, or, more exactly, perverted, as to resemble writing reflected in a mirror.
Mnemonic chain.—A continuous series of memories, especially when the continuity persists after an interruption.
Motor.—Used of an impulse to action not carrying with it any definite idea or sensory impression.
Negative hallucination or systematised anæthesia.—Signifies the condition of an entranced subject who, as the result of a suggestion, is unable to perceive some object or to hear some sound, etc.
Number forms.—See Secondary sensations.
Objectify.—To externalize a phantom as if it were a material object; to see it as a part of the waking world.
*Panmnesia.—A potential recollection of all impressions.
Paræsthesia.—Erroneous or morbid sensation.
Paramnesia.—All forms of erroneous memory.
Paraphasia.—The erroneous and involuntary use of one word for another.
Percipient.—The correlative term to Agent; the person on whose mind the telepathic impact falls; or, more generally, the person who perceives any motor or sensory impression.
Phantasm and Phantom.—Phantasm and phantom are, of course, mere variants of the same word; but since phantom has become generally restricted to visual hallucinations, it is convenient to take phantasm to cover a wider range, and to signify any hallucinatory sensory impression, whatever sense—whether sight, hearing, touch, smell, taste, or diffused sensibility—may happen to be affected.
Phantasmogenetic centre.—A point in space apparently modified by a spirit in such a way that persons present near it perceive a phantasm.
Phobies.—Irrational restricting or disabling preoccupations or fears; e.g., agoraphobia, fear of open spaces.
Photism.—See Secondary sensations.
Point de repère.—Guiding mark. Used of some (generally inconspicuous) real object which a hallucinated subject sometimes sees as the nucleus of his hallucination, and the movements of which suggest corresponding movements of the hallucinatory object.
Polyzoism.—The property, in a complex organism, of being composed of minor and quasi-independent organisms. This is sometimes called "colonial constitution," from animal colonies.
Possession.—A developed form of motor automatism, in which the automatist's own personality disappears for a time, while there appears to be a more or less complete substitution of personality, writing or speech being given by another spirit through the entranced organism.