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permutation

n. an ordered arrangement of elements from a set. A permutation is similar to a combination but distinguished by its emphasis on order. For example, if there are three colored objects—red (R), white (W), and blue (B)—there are six possible permutations of these objects: RWB, RBW, WBR, WRB, BRW, and BWR.

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Psychology term of the day

May 9th 2024

postural aftereffect

postural aftereffect

a change in posture that arises as an aftereffect of prior stimulation. For example, when viewing a moving scene, a person typically leans in the direction of the motion. When viewing ends, body posture returns to a vertical position and then, briefly, leans in the opposite direction.