“…These data were consistent with Reitan's (1955) work with brain damaged patients and the idea that the left hemisphere is better inclined for processing speech, language, and calculation. Given these findings and the confirmation of other studies, researchers agree that verbal information, such as speech, language, and calculation, are more efficiently processed by the left hemisphere (Dean, 1979;Gray, Dean, & Seretny, 1986;Batchelor, Williams, Hill, & Dean, 1997). In contrast, the right hemisphere of the brain seems better able to process visual-spatial transformations and analyze complex visual patterns.…”