The hand-lateralization of spatial associations in working memory and long-term memory

Spatial-numerical and spatial-positional associations have been well documented in the domains of numerical cognition and working memory, respectively. However, such associations are typically calculated by directly comparing (e.g., subtracting) left- versus right-hand responses; it remains an open...

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Bibliographic Details
Published in:Quarterly journal of experimental psychology (2006) Vol. 73; no. 8; p. 1150
Main Authors: Zhou, Dandan, Luo, Jie, Yi, Zizhen, Li, Yun, Yang, Shuting, Verguts, Tom, Chen, Qi
Format: Journal Article
Language:English
Published: England 01.08.2020
Subjects:
Adult
Female
Functional Laterality - physiology
Hand - physiology
Humans
Male
Mathematical Concepts
Memory, Long-Term - physiology
Memory, Short-Term - physiology
Space Perception - physiology
Young Adult
Hand-lateralization
visuo-spatial coding
ordinal position effect
verbal-spatial coding
SNARC effect
ISSN:1747-0226, 1747-0226
Online Access:Get more information
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Summary:Spatial-numerical and spatial-positional associations have been well documented in the domains of numerical cognition and working memory, respectively. However, such associations are typically calculated by directly comparing (e.g., subtracting) left- versus right-hand responses; it remains an open question whether such associations reside in each hand individually, or are exclusively localised in one of the two hands. We conducted six experiments to investigate the hand-lateralization of both spatial-numerical and spatial-positional associations. All experiments revealed that the spatial associations stemmed from left-hand responses, irrespective of the handedness of the subjects, but with the exception of the magnitude comparison task (Experiments 5 and 6). We propose that the hemispheric lateralization of the tasks in combination with the task-relevance of spatial associations can explain this pattern. More generally, we suggest that the contributions of left and right hands require more attention in spatial-numerical and spatial-positional research.
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ISSN:1747-0226
1747-0226
DOI:10.1177/1747021819899533