在阿法西亚患者中分离阅读和听觉理解
Rachael M Harrington1, Sigfus Kristinsson2, Janina Wilmskoetter3
1Department of Communication Sciences and Disorders and Center for Research on the Challenges of Acquiring Language and Literacy, Georgia State University, Atlanta, GA 30310, USA.
患有中风后失语症的人表现出明显的听觉和阅读理解缺陷. 损害特定的大脑区域,比如下圈,影响阅读不仅仅是听觉技能.
科学领域:
- 神经科学是一个神经科学.
- 语言学的语言学.
- 神经学 神经学
背景情况:
- 脑卒中后的失言症往往会影响语言理解,但听觉和阅读缺陷之间的分离尚未完全理解.
- 了解这种分离对于预测长期结果和开发针对性治疗失语症至关重要.
研究的目的:
- 为了研究语盲类型和阅读理解缺陷之间的关系.
- 检查听力和阅读理解障碍之间的相关性.
- 为了确定听力和阅读理解缺陷之间的解离的神经解剖学相关性,在中风后的失言症.
主要方法:
- 利用了来自70名左半球中风患者的西方阿法西亚电池修订得分.
- 采用了综合的听觉和阅读措施,使用语言上相当的刺激.
- 使用病变-症状映射来识别与理解缺陷相关的关键大脑结构,控制听觉功能.
主要成果:
- 布罗卡和全球性失言症类型的阅读理解表现最差.
- 听力理解占阅读理解差异的26-44%.
- 状,状和其他腹部流区域的损伤独立地预测了更差的阅读理解,即使在控制听力缺陷之后.
结论:
- 听力和阅读理解缺陷在失言症中只与部分相关.
- 阅读理解缺陷与腹部流和视觉联想区域的特定损伤区域有关.
- 这种神经解剖学解离提供了对语言神经生物学的洞察力,以及在失言症中阅读障碍的潜在治疗点.
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