Planum temporale morphology in children with developmental dyslexia

NEUROPSYCHOLOGIA

卷:51

Article

Bloom, Juliana Sanchez¹  Garcia-Barrera, Mauricio A.²  Miller, Carlin J.³  Miller, Scott R.³  Hynd, George W.⁴ 

[1] Childrens Healthcare Atlanta, Dept Neuropsychol, Atlanta, GA 30322 USA

[2] Univ Victoria, Dept Psychol, Victoria, BC V8W 3P5, Canada

[3] Univ Windsor, Dept Psychol, Windsor, ON N9B 3P4, Canada

[4] Coll Charleston, Charleston, SC 29424 USA

关键词: Reading disability;    Reading;    Phonological processing;    Auditory processing;    Laterality;    Neurobiology;    Planum temporale;    MRI;   

DOI  :  10.1016/j.neuropsychologia.2013.05.012

来源: Elsevier

【 摘 要 】

The planum temporale is a highly lateralized cortical region, located within Wernicke's area, which is thought to be involved in auditory processing, phonological processing, and language. Research has linked abnormal morphology of the planum temporale to developmental dyslexia, although results have varied in large part due to methodological inconsistencies in the literature. This study examined the asymmetry of the planum temporale in 29 children who met criteria for dyslexia and 26 children whose reading was unimpaired. Leftward asymmetry of the planum temporale was found in the total sample and this leftward asymmetry was significantly reduced in children with dyslexia. This reduced leftward asymmetry in children with dyslexia was due to a planum temporale that is larger in the right hemisphere. This study lends support to the idea that planum temporale asymmetry is altered in children with developmental dyslexia. (c) 2013 Elsevier Ltd. All rights reserved.

【 授权许可】

Free