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Psychology Terms - absolute threshold
In psychophysics, the minimal intensity of a sensory stimulus that may be perceived or consistently elicit a sensation is referred to as the absolute threshold. A common illustration is the average human absolute threshold for sound intensity at 1,000 hertz (about two octaves above Middle C), which is around 6.5 dB SPL.The initial notion of a clearly delineated threshold beneath which perception is impossible was discredited and largely forsaken following the advancement of signal detection theory, with the absolute threshold being redefined as the level detectable at a specified proportion of presentations (commonly 50 or 75 percent, although alternative percentages may also be employed). Also referred to as the absolute limen or Reiz limen (RL).
In psychophysics, the minimal intensity of a sensory stimulus that may be perceived or consistently elicit a sensation is referred to as the absolute threshold. A common illustration is the average human absolute threshold for sound intensity at 1,000 hertz (about two octaves above Middle C), which is around 6.5 dB SPL.The initial notion of a clearly delineated threshold beneath which perception is impossible was discredited and largely forsaken following the advancement of signal detection theory, with the absolute threshold being redefined as the level detectable at a specified proportion of presentations (commonly 50 or 75 percent, although alternative percentages may also be employed). Also referred to as the absolute limen or Reiz limen (RL).
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