Abstract
Each of five Ss, over a priod of 10 successive days, made 500 judgments in a simultaneous brightness contrast situation, being given no knowledge of results. Contrary to expectation, the illusion showed a tendency to increase with repeated exposure; furthermore, intercurrent control judgments also showed significant changes with time. The findings pose a problem for either a judgmental or a retinal theory of brightness contrast.
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McClure, G., Smith, K. Simultaneous brightness contrast as a function of repeated trials. Psychon Sci 16, 314–315 (1969). https://doi.org/10.3758/BF03332708
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DOI: https://doi.org/10.3758/BF03332708