Asymmetries in Naming Accuracy and in Event-related Potentials for Laterally Presented Words of Variable Morphological Complexity
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Publisher:Ohio State University. Department of Linguistics
Citation:Working Papers in Linguistics, no. 38 (1990), 1-23.
Recent studies indicate that hemispheric asymmetries in lexical access exist, with the left hemisphere being superior in processing morphologically complex words. The present study looks for asymmetries in naming accuracy and in topographically displayed event-related potentials to laterally presented words. Data were collected from six subjects while words were presented to both visual fields. Right visual field superiority in naming accuracy was demonstrated for suffixed forms as expected, indicating a potential left hemisphere advantage for morphological processing. Event-related potential data revealed stimulus-relevant positive parietal peaks around 320 msec.
This work was supported in part by a grant from the National Institutes of Health (1 R01 NS22606-01) to W. Cowart, and a research grant from the OSU Department of Linguistics.