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dc.contributor.advisorElias, L.
dc.contributor.advisorSaucier, D.
dc.creatorGilleta, Karen S
dc.date.accessioned2018-08-14T20:35:11Z
dc.date.available2018-08-14T20:35:11Z
dc.date.issued2007-04
dc.date.submittedApril 2007en_US
dc.identifier.urihttp://hdl.handle.net/10388/9586
dc.description.abstractSpatial laterality refers to the localization of spatial processing within the right and left cerebral hemispheres. Although a left visual field/right hemisphere (LVF) advantage has generally been observed for spatial processing,observations of a right-visual field/left hemisphere (RVF) advantage and no visual field/no hemisphere (OVF) advantage have also been reported.The inconsistent research findings in spatial laterality have been attributed to individual differences (e.g.,sex and handedness), although research in this area has been limited. Some evidence suggests that level of spatial ability may affect spatial laterality. For example, Voyer and Bryden (1990) reported a RVF advantage for participants with high spatial ability,a OVF advantage for participants with medium spatial ability, and a LVF advantage for participants with low spatial ability. The main purpose of this thesis was to replicate and extend Voyer and Bryden's findings. Two experiments were conducted. Level of spatial ability (low, medium,or high) for participants was determined by performance on a standard, paper­ and-pencil measure of mental rotation. The experimental task was a lateralized mental rotation task presented on a computer. Experiment 1 examined the performance of 52 right-handed undergraduate students. Right-handed males with low or high spatial ability demonstrated a significant RVF advantage in performance on a lateralized spatial task. Experiment 2 examined the performance of 50 left-handed undergraduate students. Left-handed participants with low spatial ability demonstrated a significant RVF advantage in performance on a lateralized spatial task. Left-handed females, regardless of ability level, also demonstrated a significant RVF advantage in spatial performance. Limited support was found for the notion that level of spatial ability affects spatial laterality in right-or left-handed males and females. Rather, the results could be attributed to the linguistic nature of the experimental stimuli, which engaged a left-hemisphere verbal processing strategy.en_US
dc.titleSEX, HANDEDNESS,AND SPATIAL ABILITY AFFECT LATERALITY FOR MENTAL ROTATIONen_US
thesis.degree.departmentPsychologyen_US
thesis.degree.disciplinePsychologyen_US
thesis.degree.grantorUniversity of Saskatchewanen_US
thesis.degree.levelDoctoralen_US
thesis.degree.nameDoctor of Philosophy (Ph.D.)en_US
dc.type.genreThesisen_US


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