terminal threshold

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The point along a continuum of stimulus intensity beyond which further increases produce no further increases in sensation, although for some types of stimuli pain or damage to the sensory receptors may be caused, or an analogous upper point along another stimulus dimension such as sound-wave frequency, the terminal threshold in that case being approximately 20,000 hertz for a person with normal hearing. Also called an upper threshold, though this usage causes confusion.

Subjects: Psychology.

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