Categorical and coordinate spatial task performance in inconsistent-handers versus consistent-right-handers: part II
- 28 Downloads
A previous study reported superior categorical and coordinate spatial task performance in inconsistent-versus consistent-right-handers (ICH versus CRH). Propper et al. used a three-dimensional (3D) computer-based task wherein individuals navigated to 21 locations within a realistic cityscape. During testing, participants were queried on their categorical and coordinate spatial knowledge of the map. In that study, the categorical and coordinate tasks may have inadvertently encouraged language coding of learned spatial information, potentially confounding spatial processing with recall ability for language-based information. Also, that study used a between-subjects design, which precludes examination of relationships between spatial knowledge as a function of handedness. The present study duplicated the learning task in Propper et al. using test stimuli that more faithfully represent spatial, and not language-based, information, as well as a within-subjects design. Results did not significantly replicate the previous study. Possible reasons for this finding are discussed.
KeywordsSpatial processing Handedness Categorical Coordinate
This study was not funded.
Compliance with ethical standards
Conflict of interest
All authors declare that there are no conflicts of interests.
This article does not contain any studies with animals performed by any of the authors.
Human and animal rights
All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Helsinki Declaration and its later amendments or comparable ethical standards.
Informed consent was obtained from all individual participants included in the study.
- Hellige JB (2001) Hemispheric asymmetry: what’s right and what’s left, vol 6. Harvard University Press, CambridgeGoogle Scholar
- Laeng B, Chabris CF, Kossyln SM (2003) Asymmetries in encoding spatial relations. In: Hugdahl K, Davidson RJ (eds) The asymmetrical brain. The MIT Press, Cambridge, MA, pp 303–339Google Scholar
- Prichard E, Propper RE, Christman, SD (2013) Degree of handedness, but not direction, is a systematic predictor of cognitive performance. Front Cogn 4, Article 9. https://doi.org/10.3389/fpsyg.2013.00009