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Reflection-sensitive Long-term Priming: Size Does Matter

 Sean P. McAuliffe and Barbara J. Knowlton
  
 

Abstract:
Recent results suggest that a component of long-term priming for object identification is sensitive to left-right reflection (McAuliffe & Knowlton, 2000). The present study investigated the effects of left-right reflection and size on identification priming. During the study phase, subjects viewed images and were instructed to attend to them in preparation for a later memory test. In the test phase, subjects identified previously seen objects presented in a rapid visual stream of non-object distracters. When study size and test size were matched, objects presented in the same left-right orientation were identified faster than objects presented in a mirror-reflected left-right orientation. In contrast, when study size and test size differed, objects presented in the same left-right orientation were identified equally as fast as objects presented in a mirror-reflected left-right orientation. The results suggest that long-term reflection-sensitive identification priming is also sensitive to changes in size. In addition, these findings support the idea that shape representations in early visual areas (that are sensitive to retinal size) can be primed in the long term.

 
 


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