Abstract
The effects of stimulus orientation on naming were examined in two experiments in which subjects identified line drawings of natural objects following practice with the objects at the same or different orientations. Half the rotated objects were viewed in the orientation that matched the earlier presentations, and half were viewed at an orientation that mismatched the earlier presentations. Systematic effects of orientation on naming time were found during the early presentations. These effects were reduced during later presentations, and the size of this reduction did not depend on the orientation in which the object had been seen originally. The results are consistent with a dual-systems model of object identification in which initially large effects of disorientation are the result of a normalization process such as mental rotation, and in which attenuation of the effects is due to a shift from the normalization system to a feature/part-based
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This research was supported by grants from the Faculty of Graduate Studies and Research (Carleton University) and the University of Otago Research Committee to J.E.M., and awards from the Natural Sciences and Engineering Research Council of Canada to J.E.M. and P.J. PAM. was supported by ONR Contract N0014-89-J3016 to Martha Farah.
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Murray, J.E., Jolicoeur, P., McMullen, P.A. et al. Orientation-invariant transfer of training in the identification of rotated natural objects. Memory & Cognition 21, 604–610 (1993). https://doi.org/10.3758/BF03197192
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DOI: https://doi.org/10.3758/BF03197192