Difference threshold is also called the Just Noticeable Difference.

Difference threshold is also called the Just Noticeable Difference.

• A. Absolute threshold
• B. Perception threshold
• C. Just Noticeable Difference
• D. Sensory adaptation

Answer: (C)

The main concept here is naming thresholds in psychophysics. The difference threshold is the smallest change in a stimulus that a person can detect, and that exact idea is captured by the term Just Noticeable Difference. In other words, when you notice a change only because it has crossed a minimal level of difference, you’re experiencing the Just Noticeable Difference. This is distinct from the absolute threshold, which is the minimum stimulus needed for detection at all, and from sensory adaptation, which describes how sensitivity declines with continuous exposure to a stimulus. The other terms aren’t standard labels for the smallest detectable change, so the Just Noticeable Difference is the precise, commonly used name for the concept.

The main concept here is naming thresholds in psychophysics. The difference threshold is the smallest change in a stimulus that a person can detect, and that exact idea is captured by the term Just Noticeable Difference. In other words, when you notice a change only because it has crossed a minimal level of difference, you’re experiencing the Just Noticeable Difference. This is distinct from the absolute threshold, which is the minimum stimulus needed for detection at all, and from sensory adaptation, which describes how sensitivity declines with continuous exposure to a stimulus. The other terms aren’t standard labels for the smallest detectable change, so the Just Noticeable Difference is the precise, commonly used name for the concept.