损伤依赖的Cingulo-opercular网络和语言网络集成在中风后的失言症
Qiufang Ren1, Jian Guan1, Xiaohui Xie1
1Anhui Medical University.
Journal of cognitive neuroscience
|March 4, 2026
概括
这项研究揭示,在中风后失语症 (PSA) 患者中,直接语言网络 (LN) 损伤, cingulo-opercular 网络 (CON) 连接对于语言流性至关重要,并与白质完整性相关. 这突出了CON-LN的功能集成.
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:
- 脑卒中后失言症 (PSA) 带来了重大的沟通挑战.
- 了解语言恢复的神经支柱至关重要.
- 休息状态功能连接 (rs-FC) 和白质完整性在PSA中的作用是一个活跃的研究领域.
研究的目的:
- 在PSA中,研究 cingulo-opercular 网络 (CON) 和语言网络 (LN) 之间的 rs-FC 中的差异性损伤模式.
- 探索语言网络 (LN) 损伤地形如何影响CON-LN连接及其与行为的关系.
- 检查白质完整性在这些结构功能关系中的调解作用.
主要方法:
- 63名首次PSA患者被分为LN病变阳性 (LNL+) 和LN病变阴性 (LNL-) 组.
- 在使用个性化和基于组的模板分析评估了CON和LN之间的rs-FC.
- 在CON-LN rs-FC,口语流性和白质完整性之间进行了相关性 (弧形囊[AF]和上纵囊[SLF]的细分).
主要成果:
- 在CON-LN rs-FC中没有发现基线组间差异.
- 在LNL+患者中,个性化的CON-LN连接性与口语流性正相关 (r = .504,p = .009).
- 在LNL+患者中,CON-LN连接与AF和SLF分区的损伤严重程度有负相关性,表明白质完整性受损影响功能.
结论:
- CON-LN功能整合对于直接LN损伤的PSA患者的语言恢复至关重要.
- 特定的白质道,包括前/长AF段和SLF II/III,是支持这种整合的关键基质.
- 这些发现强调了在理解PSA和指导康复策略时考虑损伤位置和白质完整性的重要性.
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