Wills et al. (2004)
Stimulus preexposure can facilitate or retard subsequent category learning, dependent on stimulus structure. The fact that stimulus exposure can have the opposite effect to categorization of the same stimuli is difficult to accommodate in accounts that assume preexposure has its effects through a process of unsupervised categorization (e.g. Saksida, 1999).
Wills, A.J., Suret, M.B., & McLaren, I.P.L. (2004). The role of category structure in determining the effects of stimulus preexposure on categorization accuracy. Quarterly Journal of Experimental Psychology, 57B, 79-88.
Published: 1 January 2004.
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