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Psychology Terms - Achromatic interval
For light of a specific hue, the spectrum of light intensities extending from its absolute threshold to the minimal intensity at which its hue is perceivable; similarly, for a pure tone of a designated frequency, the spectrum of amplitudes from its absolute threshold to the minimal intensity at which its pitch is perceivable.
For light of a specific hue, the spectrum of light intensities extending from its absolute threshold to the minimal intensity at which its hue is perceivable; similarly, for a pure tone of a designated frequency, the spectrum of amplitudes from its absolute threshold to the minimal intensity at which its pitch is perceivable.
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