countershading

n. a form of camouflage that involves using differential light and dark areas on the body to minimize the ability of predators to detect the organism. For example, fish often have dark-colored backs and light-colored bellies. A predator from below has difficulty discriminating the fish from the sky above, and a predator from above has difficulty discriminating the fish from the dark substrate below.

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Psychology term of the day

November 19th 2024

texture segregation task

any detection task in which the figure to be detected is defined by textural elements so that it must be distinguished from some background pattern of a different texture.