Language and reading impairments are associated with increased prevalence of non-right handedness
Abstract
Handedness has been studied for association with language-related disorders because of its link with language hemispheric dominance. No clear pattern has emerged, possibly because of small samples, publication bias, and heterogeneous criteria across studies. Non-right-handedness (NRH) frequency was assessed in N = 2503 cases with reading and/or language impairment and N = 4316 sex-matched controls identified from 10 distinct cohorts (age range 6–19 years old; European ethnicity) using a priori set criteria. A meta-analysis (Ncases = 1994) showed elevated NRH % in individuals with language/reading impairment compared with controls (OR = 1.21, CI = 1.06–1.39, p = .01). The association between reading/language impairments and NRH could result from shared pathways underlying brain lateralization, handedness, and cognitive functions.
Citation
Abbondanza , F , Dale , P S , Wang , C A , Hayiou-Thomas , M E , Toseeb , U , Koomar , T S , Wigg , K G , Feng , Y , Price , K M , Kerr , E N , Guger , S L , Lovett , M W , Strug , L J , van Bergen , E , Dolan , C V , Tomblin , J B , Moll , K , Schulte-Körne , G , Neuhoff , N , Warnke , A , Fisher , S E , Barr , C L , Michaelson , J J , Boomsma , D I , Snowling , M J , Hulme , C , Whitehouse , A J O , Pennell , C E , Newbury , D F , Stein , J , Talcott , J B , Bishop , D V M & Paracchini , S 2023 , ' Language and reading impairments are associated with increased prevalence of non-right handedness ' , Child Development , vol. 94 , no. 4 , pp. 970-984 . https://doi.org/10.1111/cdev.13914
Publication
Child Development
Status
Peer reviewed
ISSN
0009-3920Type
Journal article
Description
Funding: Royal Society - UF150663, RGF\EA\180141; Wellcome Trust - 217065/Z/19/Z; H2020 European Research Council - 694189; NWO - 451-15-017; National Health and Medical Research Council - 1173896; Canadian Institute for Health Research - MOP-133440.Collections
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