The ontogeny of right cerebral lateralization of spatial mental set

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Tested the manner in which right-hemisphere function lateralizes in childhood based on the left-hemisphere bias in visual orientation that results from inducing spatial mental set. 49 male and 49 female 5-12 yr olds identified tachistoscopically presented digits in either half field, given either verbal or spatial priming. The spatial priming even diminished the right-field advantage in the verbal condition when it was conducted in the 2nd session several days later. No evidence of progressive lateralization for the left hemisphere (verbal identification) or for the right hemisphere (spatial priming) process was found. Minor sex differences could be due to strategic factors. (20 ref) (PsycINFO Database Record (c) 2006 APA, all rights reserved)

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