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DOI: 10.1177/014616727900500205 © 1979 Society for Personality and Social Psychology, Inc. A Summary Review of Mediating Explanations of Exposure PhenomenaDepartment of Psychology, Northern Illinois University, DeKalb, Illinois 60115. Six mediating explanations of exposure effects were reviewed. Existing evidence suggests that correlated hypotheses, response competition, or attitude formation can explain exposure effects on novel stimuli, but only attitude formation can explain exposure effects on meaningful stimuli. It was suggested that future research should resolve technical problems and then study all mediating processes as contributing factors rather than as sufficient causes if exposure effects are to be more fully understood.
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