• In neuroscience and psychophysics, an absolute threshold was originally defined as the lowest level of a stimulus – light, sound, touch, etc. – that an...
    16 KB (2,071 words) - 02:52, 15 October 2024
  • Thumbnail for Absolute threshold of hearing
    The absolute threshold of hearing (ATH), also known as the absolute hearing threshold or auditory threshold, is the minimum sound level of a pure tone...
    23 KB (2,760 words) - 13:16, 10 October 2024
  • stimulus. This minimum amount of stimulus is called the absolute threshold. The absolute threshold is defined as the minimum amount of stimulation necessary...
    91 KB (10,728 words) - 07:12, 30 September 2024
  • developed to measure thresholds in any of the senses. Several different sensory thresholds have been defined; Absolute threshold: the lowest level at...
    9 KB (1,175 words) - 20:15, 13 November 2023
  • Look up threshold in Wiktionary, the free dictionary. Threshold may refer to: Threshold (reference value) Absolute threshold Absolute threshold of hearing...
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  • Adequate stimulus are often used in relation with sensory thresholds and absolute thresholds to describe the smallest amount of a stimulus needed to activate...
    8 KB (1,065 words) - 12:47, 10 August 2024
  • areas of investigation: absolute thresholds, discrimination thresholds (e.g. the just-noticeable difference), and scaling. A threshold (or limen) is the point...
    28 KB (3,486 words) - 10:27, 31 August 2024
  • distinguished: the absolute and the difference threshold. The odor detection threshold and the odor recognition threshold are absolute thresholds; the first is...
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  • Thumbnail for Stimulus (physiology)
    probability, its level of strength must exceed the absolute threshold; if a signal does reach threshold, the information is transmitted to the central nervous...
    30 KB (3,960 words) - 22:51, 21 September 2024
  • Thumbnail for Poverty threshold
    adjusted the threshold for only price changes. The term "absolute poverty" is also sometimes used as a synonym for extreme poverty. Absolute poverty is...
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  • Thumbnail for Just-noticeable difference
    highly improve the performance of the user in accomplishing a task. Absolute threshold ABX test Color difference Limen Minimal clinically important difference...
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  • Thumbnail for Threshold of pain
    Different values for pain threshold pressure level and pain threshold pressure are found in the literature: Absolute threshold of hearing Dolorimeter –...
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  • means situated at a sensory threshold, hence barely perceptible. Subliminal means below perception. The absolute threshold is the lowest amount of sensation...
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  • Thumbnail for Hearing range
    basic measure of hearing is afforded by an audiogram, a graph of the absolute threshold of hearing (minimum discernible sound level) at various frequencies...
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  • Thumbnail for Tone decay test
    normal hearing, a tone whose intensity is only slightly above their absolute threshold of hearing can be heard continuously for 60 seconds. The tone decay...
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  • the masking threshold, and how much quantization noise each can contain without being perceived. Any sounds below the absolute threshold of hearing (ATH)...
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  • noise shaping algorithms used in audio processing are based on an ‘Absolute threshold of hearing’ model. Any feedback loop functions as a filter. Noise...
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  • repetitions) is approximately inversely proportional to frequency. Absolute threshold of hearing Hypersonic effect, controversial claim for human perception...
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  • intensity for testing tones of various frequencies, a frequency-dependent absolute threshold of hearing (ATH) curve may be derived. Typically, the ear shows a...
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  • prove something is also strongly area-dependent, usually with no absolute threshold of sufficiency at which evidence becomes proof. In law, the same evidence...
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  • Factor (cd/m2) Multiple Value Item 10−6 μcd/m2 1 μcd/m2 Absolute threshold of vision 10−5 10−4 10−3 mcd/m2 400 μcd/m2 Darkest sky 1 mcd/m2 Night sky 1...
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  • Thumbnail for Calcium carbonate
    limestone yields calcium oxide is usually given as 825 °C, but stating an absolute threshold is misleading. Calcium carbonate exists in equilibrium with calcium...
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  • brain completely ignores incoming light unless it exceeds a certain absolute threshold number of photons. Linear motion traces a straight line trajectory...
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  • Thumbnail for Refractory period (physiology)
    most commonly refers to electrically excitable muscle cells or neurons. Absolute refractory period corresponds to depolarization and repolarization, whereas...
    11 KB (1,302 words) - 08:49, 24 September 2024
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    122L..52A. doi:10.1121/1.2761883. ISSN 0001-4966. PMID 17927307. The absolute threshold usually starts to increase sharply when the signal frequency exceeds...
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  • Thumbnail for The Mosquito
    deterrent Presbycusis, the age-related hearing loss Hearing range Absolute threshold of hearing Tinnitus Hostile design "The Mosquito MK4 Anti-Loitering...
    32 KB (3,102 words) - 16:52, 23 August 2024
  • 122L..52A. doi:10.1121/1.2761883. ISSN 0001-4966. PMID 17927307. The absolute threshold usually starts to increase sharply when the signal frequency exceeds...
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  • they are. Audibility of spectral components is assessed using the absolute threshold of hearing and the principles of simultaneous masking—the phenomenon...
    68 KB (7,525 words) - 21:17, 30 October 2024
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    cd/m2) or lightning discharge. At the low end of the range is the absolute threshold of vision for a steady light across a wide field of view, about 10−6...
    79 KB (9,422 words) - 16:36, 26 October 2024
  • Thumbnail for Equal-loudness contour
    represents the quietest audible tone—the absolute threshold of hearing. The highest contour is the threshold of pain. Churcher and King carried out a...
    17 KB (2,214 words) - 17:13, 29 August 2024