Perceptual Thresholds Webers Law A point in which a stimulus is perceived and below which it is not perceived The threshold determines when we first become aware of a stimulus Threshold Absolute Threshold ID: 769107
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Perceptual Thresholds Weber’s Law
A point in which a stimulus is perceived and below which it is not perceived. The threshold determines when we first become aware of a stimulus. Threshold
Absolute Threshold The intensity level of a stimulus such that a person will have a 50% chance of detecting it.
Has an intensity that gives a person less than a 50% chance of detecting the stimulus. Subliminal stimulus
Just noticeable difference ( jnd ) Refers to the smallest increase or decrease in the intensity of a stimulus that a person is able to detect.
States that the increase in intensity of a stimulus needed to produce a just noticeable difference grows in proportion to the intensity of the initial stimulus. Weber’s law