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Absolute Threshold. The absolute threshold for vision refers to the minimum amount of light energy that is necessary in order for a visual stimulus to be perceived. DIFFERENTIAL Threshold (JND THRESHOLD).
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Absolute Threshold The absolute threshold for vision refers to the minimum amount of light energy that is necessary in order for a visual stimulus to be perceived
DIFFERENTIAL Threshold(JND THRESHOLD) The differential threshold (or JND: just noticeable threshold) for vision is the smallest perceptible difference that can be detected between two visual stimuli by the eye