| 释义 |
difference threshold
difference threshold n (Psychology) psychol the minimum difference between two stimuli that is just detectable by a person Thesaurus| Noun | 1. | difference threshold - the smallest change in stimulation that a person can detectdifference limen, differential limen, differential thresholdlimen, threshold - the smallest detectable sensationjnd, just-noticeable difference - (psychophysics) the difference between two stimuli that (under properly controlled experimental conditions) is detected as often as it is undetected |
difference threshold
difference threshold[′dif·rəns ‚thresh‚hōld] (psychology) just-noticeable difference difference threshold
threshold (thresh'(h)old?) 1. The point at which a psychological or physiological effect begins to be produced.2. A measure of the sensitivity of an organ or function that is obtained by finding the lowest value of the appropriate stimulus that will give the response.absolute thresholdThe lowest amount or intensity of a stimulus that will give rise to a sensation or a response.acoustic reflex thresholdThe decibel level that provokes reflex contraction of the stapedius muscle. Tests that measure the triggering of the acoustic stapedius reflex are used to determine the presence of sensorineural hearing loss. anaerobic thresholdThe point at which increased carbon dioxide production and minute ventilation result from increased levels of lactic acid during exercise.auditory thresholdThe minimum audible sound perceived.threshold of consciousnessIn psychoanalysis, the point at which a stimulus is just barely perceived.difference thresholdJust noticeable difference.differential thresholdThe lowest limit at which two stimuli can be differentiated from each other.erythema thresholdThe stage of ultraviolet skin injury in which erythema of the skin due to radiation begins. ketone thresholdThe level of ketone in the blood above which ketone bodies appear in the urine.ketosis thresholdThe lower limit at which ketone bodies, on their accumulation in the blood, are excreted by the kidney. At that point, ketone bodies are being produced faster by the liver than the body can oxidize them. pain thresholdThe minimum level of sensory stimulation that a person will perceive as being unpleasant, noxious, or intolerable.pressure pain threshold Abbreviation: PPT
The applied mass per area (kg/cm2) that will elicit a complaint of pain in subjects with painful conditions, e.g., fibromyalgia, temperomandibular joint dysfunction, or vulvodynia.renal thresholdThe concentration at which a substance in the blood normally not excreted by the kidney begins to appear in the urine. The renal threshold for glucose is 160 to 180 mg/dl. seizure thresholdThe level of neurological stimulation capable of precipitating a seizure.sensory thresholdThe minimal stimulus for any sensory receptor that will give rise to a sensation.speech detection threshold Abbreviation: SDT
The lowest level of sound intensity in decibels at which a person identifies a spoken word 50% of the time.spondee thresholdIn audiometry, the intensity at which speech is recognized as a meaningful symbol. This is tested by presenting, through an audiometer, two-syllable words in which each symbol is accented equally. See: audiometryviability thresholdThe body weight or gestational age of an infant below which the ability to survive is doubtful.FinancialSeeThresholdAcronymsSeedesktopdifference threshold
Related to difference threshold: Signal detection theorySynonyms for difference thresholdnoun the smallest change in stimulation that a person can detectSynonyms- difference limen
- differential limen
- differential threshold
Related Words- limen
- threshold
- jnd
- just-noticeable difference
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