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The short answer: it depends. A lot. Watch the hand that your child uses to pick up her favorite toy or the hand she favors for eating this may be difficult to determine if she is still finger feeding Watch how he stirs : stirring in a counterclockwise motion mean he's more likely to be left-handed. As she gets older, watch the hand she chooses to hold a crayon or pencil. Although more works needs to be done, Michel et al. It is reasonable to assume that infants with a hand preference for engaging with objects would develop greater manual skill and proficiency with the preferred hand and that preference would affect the development of their manual control of objects.
Object construction requires manually merging multiple objects into a single, unifying structure, such as stacking blocks into a tower or assembling a puzzle Marcinowski, Object construction has recently been related to a variety of cognitive skills at later ages, including mathematical ability Wolfgang et al. Marcinowski found that infants with a consistent hand preference develop stacking more quickly during 10—14 months period than infants without a hand preference.
Consistent left- and right-preferring infants manifested greater stacking skill at 14 months, than infants without a consistent hand preference.
Moreover, infants with a trending right preference did not differ in the development of their stacking skill from infants without a preference. Since the trending right group did not exhibit a hand preference for acquisition during the 6—9 months period before stacking began to be assessed, they likely had not developed the manual proficiency needed to stack objects Chen et al. Thus, the consistency of a hand preference changes the relation between a hand preference and the cognitive skill of object construction.
Also, Kotwica et al. When infants are given multiple toys one at a time , they must develop the ability to manipulate and manage these objects so that the latter are available for future interaction. Infants with consistent hand preference demonstrated a greater skill for object storage, such as placing objects in reachable locations and intermanual transfer, than infants without a hand preference Kotwica et al.
Indeed, Bruner considered object storage skills to be important for the development of symbolic representation and hence language development , since an unused, but stored object must be mentally represented by the infant for later retrieval.
Tool use is another important cognitive skill that often involves imitation of complex actions, planning, decision-making, and the ability to account for spatial and temporal characteristics of objects, their properties, and the situation. Many have argued that tool use requires advanced symbolic thinking and representational means-end analysis Bates et al.
Fraz et al. They found that infants with consistent right or left hand preference out-performed those without a hand preference in the number of successfully completed tool-using actions at the ages of 10, 11, and 12 months. However, after 12 months differences between the hand preference groups ceased to be statistically significant. Thus, we have shown how longitudinal assessments of the consistency of hand preferences relate to the development of the manipulation of objects that are considered to contribute to the development of symbolic cognitive abilities.
We have demonstrated that early-established hand preferences revealed by their consistency across longitudinal assessments for object acquisition and manipulation of objects significantly predict developmental advancement of such important elements of cognitive development as expressive language, object construction, object management skills, and tool use.
Thus, it is important that longitudinal consistency in infant hand preferences be taken into account while exploring patterns of neurobehavioral functioning and cognitive development. Having a more practiced, preferred hand could assist infants in scaffolding their manual proficiency and hence their comprehension of the properties of objects. Such comprehension, in turn, could contribute to the development of other cognitive abilities as revealed in object construction, tool-using, and language development.
The authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest. Annett, M. East Sussex: Psychology Press. Google Scholar. Arbib, M. Arbib Cambridge: Cambridge University Press , 1— PubMed Abstract. Babik, I. Postural influences on the development of infant lateralized and symmetrical hand-use. Child Dev. Barsalou, L. Grounded cognition.
Bates, E. Perceptual aspects of tool using in infancy. Infant Behav. Boulenger, V. Grasping ideas with the motor system: semantic somatotopy in idiom comprehension. Cortex 19, — Bruner, J. Beyond the Information Given. New York, NY: W.
Buttelmann, D. Rational tool use and tool choice in humans and great apes. Caldera, Y. Campbell, J. The influence of a hand preference for acquiring objects on the development of a hand preference for unimanual manipulation from 6 to 14 months.
Different assessment tasks produce different estimates of handedness stability during the eight to 14 month age period. Carpenter, M. Fourteen-through month-old infants differently imitate intentional and accidental actions. CrossRef Full Text. Casasanto, D. Embodiment of abstract concepts: good and bad in right- and left-handers. Different bodies, different minds: the body specificity of language and thought.
Chen, Y. Movement planning reflects skill level and age changes in toddlers. Corballis, M. The evolution and genetics of cerebral asymmetry. B , — Parents Magazine. Be the first to comment! No comments yet. Close this dialog window Add a comment. Add your comment Cancel Submit. Close this dialog window Review for. Back to story Comment on this project. Tell us what you think
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