the sleeping state as opposed to a waking state.
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The abbreviation for surface structure.
Rapid intermittent eye movement, as that which occurs when the eyes fix on one point after another in the visual field. Course cannot be altered once begun. See also: microsaccadis. Compare with: smooth-pursuit movement.
Rate of motion inherent in a saccade. Humans have been known to achieve rates of motion at up to 700
Amount of time for which a saccade occurs, usually between 15-100 ms, with a delay of approximately 150 ms prior to new saccade initiation.
Smaller of the two divisions of the membranous labyrinth, lying in the spheric recess; it is connected with the cochlear duct by a very short tube, the ductus reuniens, and with the utriculus by the beginning of the endolymphatic sac and the utriculosaccularis duct that joins it.
Ancient Greek designation for epilepsy, which they thought to be indicative of divine communication.
Sexual fetish centering on staged or actual sacrificial death or pertinent rituals; involving the implements, people, or other sacrificial objects. See also: paraphilia.
Derivation of pleasure as a result of inflicting pain or watching pain inflicted on others, especially sexual partners (see: sexual sadism), and is crucial to sexual arousal and function. Animal abuse or torture may also contribute to pleasure attained in this manner. Usually chronic and seen primarily in men, resultant of conscious or unconscious motivations or desires, and can lead to rape, torture, and murder. May be observable from the initial stages of development, i.e. an infant might attain pleasure from biting during the oral-biting phase of development. See also: anal sadism; oral sadism. Compare with: masochism.
Personality disorder which is marked by a pervasive pattern of cruel, demeaning, and aggressive behavior. Satisfaction is gained in intimidating, coercing, humiliating, and inflicting pain and suffering on others. These individuals are often cruel, merciless, and reckless.