The minimum amount of stimulation a person needs to detect a stimulus 50 percent of the time is called the

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The minimum amount of stimulation a person needs to detect a stimulus 50 percent of the time is called the absolute threshold. Option A, sensory midpoint, is not a term used in psychology. Option B, just noticeable difference, refers to the smallest difference between two stimuli that can be detected 50 percent of the time and is related to Weber's law. Option C, perceptual set, refers to a person's tendency to perceive things in a certain way based on their expectations or previous experiences.

The Minimum Amount of Stimulation a Person Needs to Detect