Effects of bilingualism on white matter integrity in older adults
作者: John A.E. AndersonJohn G. GrundyJaisalmer De FrutosRyan M. BarkerCheryl GradyEllen Bialystok
作者单位: 1Department of Psychology, York University, Toronto, Ontario, Canada
2Biological and Health Psychology Department, Universidad Autónoma de Madrid, Madrid, Spain
3Laboratory of Cognitive and Computational Neuroscience, Center for Biomedical Technology, Pozuelo de Alarcón, Spain
4Baycrest Rotman Research Institute, Toronto, ON, Canada
5University of Toronto, Departments of Psychology and Psychiatry, Canada
刊名: NeuroImage, 2018, Vol.167 , pp.143-150
来源数据库: Elsevier Journal
DOI: 10.1016/j.neuroimage.2017.11.038
关键词: BilingualismDTIWhite matterAgingPropensity score matching
英文摘要: Abstract(#br)Bilingualism can delay the onset of dementia symptoms and has thus been characterized as a mechanism for cognitive or brain reserve, although the origin of this reserve is unknown. Studies with young adults generally show that bilingualism is associated with a strengthening of white matter, but there is conflicting evidence for how bilingualism affects white matter in older age. Given that bilingualism has been shown to help stave off the symptoms of dementia by up to four years, it is crucial that we clarify the mechanism underlying this reserve. The current study uses diffusion tensor imaging (DTI) to compare monolinguals and bilinguals while carefully controlling for potential confounds (e.g., I.Q., MMSE, and demographic variables). We show that group differences in...
全文获取路径: Elsevier  (合作)
影响因子:6.252 (2012)

  • integrity 综合性
  • white 白色
  • matter 物质
  • older