Just Noticeable Difference (JND)
Definition
The smallest change in stimulation that a person can detect 50% of the time.
Related terms
Absolute Threshold: This is the minimum level of stimulus intensity needed for a stimulus to be detected.
Signal Detection Theory: A theory predicting how and when we detect the presence of a faint stimulus amid background noise.
Subliminal Perception: This refers to perception below the threshold of conscious awareness.
"Just Noticeable Difference (JND)" appears in:
Study guides (1)
AP Psychology - 3.1 Principles of Sensation
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Resources
Cram Mode
AP Score Calculators
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Help Center
© 2024 Fiveable Inc. All rights reserved.
AP® and SAT® are trademarks registered by the College Board, which is not affiliated with, and does not endorse this website.