语言工作记忆的恢复取决于左半球的白物质轨道
Randi C Martin1, Junhua Ding2, Ali I Alwani3
1Psychological Sciences, Rice University, Houston, Texas, USA.
bioRxiv : the preprint server for biology
|August 26, 2024
概括
脑卒中恢复涉及白质通道. 语义语言工作记忆在中风后得到改善,与左半球通道完整性有关,而不是右半球. 这突出显示了白质.
科学领域:
- 神经科学是一个神经科学.
- 神经学 神经学
- 认知科学 认知科学
背景情况:
- 脑卒中恢复通常集中在灰质上,忽略了白质的区域.
- 白质道在中风后的口头工作记忆恢复中的作用还未得到充分研究.
研究的目的:
- 研究左半球与右半球白质道在中风后声学和语义语言工作记忆的纵向恢复中的作用.
- 要确定恢复是否取决于招募周边或同类白质区域.
主要方法:
- 在24名左半球中风患者的急性和慢性阶段评估口头工作记忆 (WM).
- 使用扩散MRI检查了五个左半球和右半球白质道的完整性.
- 在WM性能与白质通道完整性相关的变化.
主要成果:
- 语义语言工作记忆从急性到慢性阶段显著改善.
- 语音语言工作记忆没有显著改善.
- 语义性WM的改善与左半球道的完整性相关:弧形囊,下额头囊和下纵向囊.
结论:
- 白质道在中风后的语言恢复中起着至关重要的作用.
- 与右半球相比,左半球的白质区域对语义口头工作记忆的恢复更为关键.
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