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What is the first law of psychophysics?

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asked Jan 20 in Psychology by DarylBottoml (2.0k points)

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answered Jan 20 by ArnoldJanous (2.1k points)

The first law of psychophysics states that the magnitude of a stimulus needs to be increased proportionally to the magnitude of a difference threshold before the difference is noticeable.

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What is the first law of psychophysics?

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