brightness

n. the perceptual correlate of light intensity. The brightness of a stimulus depends on its amplitude (energy), wavelength, the adaptation state of the observer, and the nature of any surrounding or intervening stimuli. See luminance; brightness contrast.

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Psychology term of the day

February 25th 2025

disorders of excessive somnolence (DOES)

Sorry, "disorders-of-excessive-somnolence-does" is not in the Dictionary of Psychology. Please report to APA if you believe this is an error.