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Superior categorical and coordinate spatial task performance in inconsistent-handers relative to
Ruth E Propper1, Andrew Wolfarth1, Christophe Carlei2
1a Psychology Department , Montclair State University , Montclair , NJ , USA.
Laterality
|July 25, 2018
Summary
Inconsistent-right-handers (ICH) demonstrated superior performance on both categorical and coordinate spatial tasks compared to consistent-right-handers (CRH). ICH also learned a virtual environment faster and felt more confident in their spatial knowledge.
Area of Science:
- Neuroscience
- Cognitive Psychology
- Spatial Cognition
Background:
- Spatial tasks differentially engage left and right brain hemispheres.
- Inconsistent-right-handers (ICH) show greater right hemisphere access than consistent-right-handers (CRH).
Purpose of the Study:
- To investigate if ICH outperform CRH on spatial tasks due to enhanced right hemisphere processing.
- To explore handedness differences in categorical and coordinate spatial knowledge.
Main Methods:
- Participants navigated a high-fidelity 3D virtual environment from a first-person perspective.
- Spatial knowledge was assessed using categorical and coordinate tasks after navigation.
- Handedness was categorized as inconsistent-right-hander (ICH) or consistent-right-hander (CRH).
Main Results:
- ICH significantly outperformed CRH on both categorical and coordinate spatial knowledge tests.
- ICH navigated the virtual environment more quickly than CRH.
- ICH reported higher confidence in their landmark location knowledge compared to CRH.
Conclusions:
- Findings suggest potential general advantages in spatial ability for inconsistent-right-handers.
- Results support the hypothesis linking handedness, hemispheric processing, and spatial cognition performance.
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