Rule identity classification of name and shape stimuli

Displays consisting of two names, two shapes, or a name printed inside a shape, were classified by the report “Yes” if both components were ‘compact’ (square or cirle combinations) or if both were ‘elongated’ (ellipse and oblong combinations). Displayswhich did not conform to this rule were classified by the report “No”. An analysis of “Yes” RTs indicated that name-name combinations were classified rapidly at a physical identity level, but relatively slowly at the rule identity level. “No” RTs to name-name displays were significantly slower than RTs to shape-shape or name-shape displays. However, “No” RTs were not delayed when the display components were visually similar. These results are discussed in relation to some current theories about the semantic representation of object names.