The transfer-appropriate processing framework emphasizes the importance of match in cognitive processes between study and test in determining memory performance. However, Brown et al. (1991) found that picture and word of the same object produced equivalent priming on subsequent picture naming (PN) when study items were presented in a pure list, while picture-picture (P-P) priming was greater than word-picture (W-P) priming in a mixed list. Park and Gabrielli (1995), on the other hand, found P-P priming superiority in both mixed and pure lists. This study explored the role of global diagnosticity (Wang and Huang, 2001) in determining the relative magnitude of P-P and W-P priming. We found that P-P priming was greater than W-P priming in a mixed list or for globally nondiagnostic objects, but they were equivalent in a pure list for globally diagnostic objects. These findings were interpreted in terms of differences in perceptual encoding. Implications of these findings to the use of PN repetition priming as a measure of implicit memory were as also discussed.
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