任务复杂性与皮层语言映射精度之间的关联
Alexa Semonche1, Anthony Lee1, Mikias B Negussie1
1Department of Neurological Surgery, University of California, San Francisco, San Francisco , California , USA.
直接皮层刺激 (DCS) 语言映射的准确性随着任务的复杂性增加而下降,特别是单词的长度. 这一发现对于优化脑瘤手术至关重要,因为在绘图过程中考虑任务难度.
科学领域:
- 神经外科 神经外科
- 神经科学是一个神经科学.
- 在瘤学瘤学.
背景情况:
- 在切除前,直接皮质刺激 (DCS) 对于绘制质瘤周围的语言区域至关重要.
- 质瘤透皮质在任务期间显示功能活动发生变化,影响信息编码.
- 任务复杂度对DCS映射精度的影响尚不清楚.
研究的目的:
- 调查视听图片命名 (PN) 任务复杂性和DCS错误率之间的相关性.
- 为了确定与增加的DCS错误相关的功能和瘤因素.
主要方法:
- 在清醒状态下对质瘤进行DCS映射的手术内PN和文字阅读 (WR) 任务的回顾性审查.
- 对单词复杂性 (音节),患者和瘤特征与错误率的分析.
主要成果:
- 在PN任务中增加的音节明显与更高的DCS错误率相关 (P=.001).
- 每个额外的音节增加了2.40的错误率 (P<.001);年龄较大也与更高的错误相关.
- 以前存在的语言障碍使复杂任务的表现恶化,但错误率没有影响质瘤切除的程度.
结论:
- 用音节来衡量单词复杂度,增加了手术内PN任务中的错误率.
- 任务的复杂性不会影响实现质瘤切除的程度.
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