vicious circularity

the logical problem that is presented by certain kinds of self-referring paradox, such as This sentence is a lie, and by certain related cruxes in set theory, notably those arising from the idea that a set can be the member of itself. See also circular reasoning.

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Psychology term of the day

December 27th 2024

standard stimulus

an item used as the basis of comparison in the quantitative investigation of physical stimuli and the sensations and perceptions they produce. For example, in the method of adjustment, a participant may be presented with a sound of a particular intensity (the standard stimulus) and then asked to change the intensity of another sound to match.