PLP1 Gene Variation Modulates Leftward and Rightward Functional Hemispheric Asymmetries
Jazyk angličtina Země Spojené státy americké Médium print-electronic
Typ dokumentu časopisecké články
Grantová podpora
Gu227/16-1
Deutsche Forschungsgemeinschaft
BE4045/26-1
Deutsche Forschungsgemeinschaft
PubMed
29435918
DOI
10.1007/s12035-018-0941-z
PII: 10.1007/s12035-018-0941-z
Knihovny.cz E-zdroje
- Klíčová slova
- Corpus callosum, Dichotic listening, Functional hemispheric asymmetries, Line bisection, Molecular genetics, Myelin,
- MeSH
- akustická stimulace MeSH
- dichotické testy MeSH
- dospělí MeSH
- funkční lateralita genetika MeSH
- genotyp MeSH
- jednonukleotidový polymorfismus genetika MeSH
- lidé středního věku MeSH
- lidé MeSH
- mladiství MeSH
- mladý dospělý MeSH
- myelinový proteolipidový protein genetika MeSH
- pozornost fyziologie MeSH
- senioři MeSH
- velký mozek fyziologie MeSH
- Check Tag
- dospělí MeSH
- lidé středního věku MeSH
- lidé MeSH
- mladiství MeSH
- mladý dospělý MeSH
- mužské pohlaví MeSH
- senioři MeSH
- ženské pohlaví MeSH
- Publikační typ
- časopisecké články MeSH
- Názvy látek
- myelinový proteolipidový protein MeSH
- PLP1 protein, human MeSH Prohlížeč
Molecular neurobiological factors determining corpus callosum physiology and anatomy have been suggested to be one of the major factors determining functional hemispheric asymmetries. Recently, it was shown that allelic variations in two myelin-related genes, the proteolipid protein 1 gene PLP1 and the contactin 1 gene CNTN1, are associated with differences in interhemispheric integration. Here, we investigated whether three single nucleotide polymorphisms that were associated with interhemispheric integration via the corpus callosum in a previous study also are relevant for functional hemispheric asymmetries. To this end, we tested more than 900 healthy adults with the forced attention dichotic listening task, a paradigm to assess language lateralization and its modulation by cognitive control processes. Moreover, we used the line bisection task, a paradigm to assess functional hemispheric asymmetries in spatial attention. We found that a polymorphism in PLP1, but not CNTN1, was associated with performance differences in both tasks. Both functional hemispheric asymmetries and their modulation by cognitive control processes were affected. These findings suggest that both left and right hemisphere dominant cognitive functions can be modulated by allelic variation in genes affecting corpus callosum structure. Moreover, higher order cognitive processes may be relevant parameters when investigating the molecular basis of hemispheric asymmetries.
Department of Human Genetics Ruhr University Bochum Bochum Germany
Faculty of Health ZBAF University of Witten Herdecke Witten Germany
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