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相关概念视频

Local Anesthetics: Differential Sensitivity of Nerve Fibers01:24

Local Anesthetics: Differential Sensitivity of Nerve Fibers

Local anesthetics (LAs) block the sodium channels of nerve trunks, sensory nerve endings, and neuromuscular junctions. Although LAs can block all kinds of nerves, the sensitivity of nerve fibers differs according to nerve types and structures. LAs are known to block myelinated fibers faster than unmyelinated ones. Also, they block pain or sensory neurons at low concentrations without affecting the motor neurons involved in muscle contractions. This helps relieve labor pain without affecting the...

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相关实验视频

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Investigating the Function of Deep Cortical and Subcortical Structures Using Stereotactic Electroencephalography: Lessons from the Anterior Cingulate Cortex
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在手术中用于语言映射的电皮层刺激 - - 一项系统性审查.

Honglin Zhu1, Efthymia Korona2, Sepehr Shirani1,3

  • 1Department of Basic and Clinical Neuroscience, Institute of Psychiatry, Psychology and Neuroscience, King's College London, London SE5 8AB, UK.

Brain sciences
|December 24, 2025
PubMed
概括
此摘要是机器生成的。

在手术中的电皮层刺激 (ECS) 语言映射显示了不同的任务区域专业化. 标准化这些任务可以最大限度地减少术后的语言缺陷,并改善患者的治疗结果.

关键词:
皮层的语言区域.电脑皮层刺激是电脑皮层刺激.的手术 的手术语言映射语言映射语言任务语言任务语言任务

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科学领域:

  • 神经科学是一个神经科学.
  • 神经外科 神经外科
  • 发病学 (Epileptology) 是一个专业的学科.

背景情况:

  • 在手术中,语言映射至关重要,以防止术后缺陷.
  • 电皮层刺激 (ECS) 是一个关键的工具,但技术和任务的变化会影响结果.
  • 对于绘制特定皮质区域的不同语言任务的准确有效性还不清楚.

研究的目的:

  • 系统地评估ECS用于手术语言映射的语言任务.
  • 分析不同皮层区域的特定任务反应.
  • 评估各种大脑区域最佳任务选择的证据.

主要方法:

  • 从2013年至2025年,按照PRISMA指南进行系统的文献搜索 (PubMed,Scopus).
  • 选了956篇文章,其中45篇符合手术中使用ECS进行语言测试的标准.
  • 提取了关于语言任务,刺激模式,皮质区域和错误类型的数据.

主要成果:

  • 识别了跨中心语言测试技术的异质性.
  • 视觉命名缺陷与叶和状/副海马回旋相关.
  • 听觉命名障碍与时间,角度和形回转相关.
  • 自发的语音错误:语音错误 (下额/上边缘回转),语义错误 (上/上区域).

结论:

  • 特定任务的语言映射揭示了不同的皮质专业化.
  • 协议的变化和缺乏标准化阻碍了可复制性.
  • 标准化语言任务可以改善结果,并尽量减少语言障碍.
  • 未来的研究需要前性的多中心研究来验证任务区域的关联.