The role of visual and semantic codes in object naming |
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Authors: | DJ Bartram |
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Institution: | University of Hull, Hull, England |
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Abstract: | Three experiments investigated the effects of familiarity, practice, and stimulus variability on naming latencies for photographs of objects. Latencies for pictures of objects having the same name decreased most with practice when the same picture was always used to represent a given object (Condition Ps-Ns), less if different views of the same object were used (Condition Pv-Ns), and least if pictures of different objects having the same name were used (Condition Pd-Ns). In all cases, however, the effect of practice was significant. The savings in naming latency associated with practice on Conditions Ps-Ns and Pv-Ns showed almost no transfer to condition Pd-Ns, even though the same responses were being given before and after transfer. However, practice on Condition Ps-Ns transferred completely to Condition Pv-Ns. Name frequency affected latency in all conditions. The frequency effect decreased slightly with practice.These results are related to several alternative models of the coding processes involved in naming objects. It is concluded that at least three types of representation may be necessary: visual codes, nonverbal semantic codes, and name codes. A distinction is made between visual codes that characterize two-dimensional stimuli and those that characterize three-dimensional objects. |
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Keywords: | Reprints may be requested from D J Bartram Department of Psychology University of Hull Hull HU6 7RX England |
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