Find over 25,000 psychological definitions


visual acuity

the degree of clarity, or sharpness, of visual perception. It may be measured in several ways; for example, by testing one’s ability to detect very small gaps between two parts of a figure (the minimum separable method), or to discern a fine dark line on a light background or a fine light line on a dark background. See also acuity grating; Landolt circles; Snellen chart.

Browse dictionary by letter

a b c d e f g h i j k l m n o p q r s t u v w x y z

Psychology term of the day

November 22nd 2024

precompetition anxiety

precompetition anxiety

increased cognitive and physiological arousal before a competition. Precompetition anxiety may facilitate or inhibit performance, depending on the performer’s perception of readiness or apprehension. See debilitative anxiety; facilitative anxiety.