Developmental Risk : Evidence from Large Nonright-Handed Samples
Joint Authors
Gaillard, Francois
Vaitsis, Kiriazis
Karapetsas, Argiris
Vlachos, Filippos
Source
Issue
Vol. 2013, Issue 2013 (31 Dec. 2013), pp.1-10, 10 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2013-07-22
Country of Publication
Egypt
No. of Pages
10
Main Subjects
Social Sciences (Multidisciplinary)
Abstract EN
The aim of the present study is twofold.
First, we tested the view that individuals who do not develop a typically strong behavioral laterality are distributed differentially among the two genders across age.
Second, we examined whether left handedness and mixed handedness are associated with an elevated risk of some developmental or cognitive deficits.
A special recruitment procedure provided norms of the Rey-Osterrieth Complex Figure (ROCF) copy from large samples of left-handed (N=420) and mixed-handed (N=72) compared to right-handed (N=420) schoolchildren and adults (N=545).
This graphic task was considered as reflective of the growth of visual-spatial skills and impairment at copying as a developmental risk.
Subjects’ hand preference was assessed by the Edinburgh Handedness Inventory.
Data analysis indicated that (1) the trend towards consistent right handedness is sex related.
Girls are clearly ahead of boys in this lateralization process, and boys are overrepresented in mixed-handed subjects.
The greater prevalence of mixed-handed boys compared to girls decreases with age.
(2) Performance on drawing the ROCF varies according to age and handedness groups.
Mixed-handed subjects scored worse in all age groups.
The results are discussed in relation to the hormonal-developmental, neuropathological, and learning theories of lateralization.
American Psychological Association (APA)
Vlachos, Filippos& Gaillard, Francois& Vaitsis, Kiriazis& Karapetsas, Argiris. 2013. Developmental Risk : Evidence from Large Nonright-Handed Samples. Child Development Research،Vol. 2013, no. 2013, pp.1-10.
https://search.emarefa.net/detail/BIM-451417
Modern Language Association (MLA)
Vlachos, Filippos…[et al.]. Developmental Risk : Evidence from Large Nonright-Handed Samples. Child Development Research No. 2013 (2013), pp.1-10.
https://search.emarefa.net/detail/BIM-451417
American Medical Association (AMA)
Vlachos, Filippos& Gaillard, Francois& Vaitsis, Kiriazis& Karapetsas, Argiris. Developmental Risk : Evidence from Large Nonright-Handed Samples. Child Development Research. 2013. Vol. 2013, no. 2013, pp.1-10.
https://search.emarefa.net/detail/BIM-451417
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-451417