在伪忽视中,正面与平行连接的影响:皮层与皮层配对的关联性刺激研究
Giacomo Guidali1, Chiara Bagattini2, Matteo De Matola1
1Neurophysiology Lab, IRCCS Istituto Centro San Giovanni di Dio Fatebenefratelli, Brescia, Italy.
概括
皮层-皮层配对关联刺激 (ccPAS) 可以调节伪忽视,一种视觉空间偏差. 从前端到双侧的ccPAS特别增强了健康参与者的左侧偏差,这表明网络调查和康复的潜力.
科学领域:
- 神经科学是一个神经科学.
- 认知心理学 认知心理学
- 神经康复疗法 神经康复疗法
背景情况:
- 伪忽视是一种视觉空间偏差,有利于左半球,可能与右半球优势有关,但其神经生理基础仍然不清楚.
- 伪忽视中半球间连接的作用还不清楚,需要研究来探索这些网络的调制.
- 非侵入性脑刺激技术为研究和潜在地修改视觉空间处理背后的大脑网络相互作用提供了途径.
研究的目的:
- 通过皮层-皮层配对关联刺激 (ccPAS) 在健康个体中研究伪忽视的调节.
- 探讨伪忽视中前端到额头 (FP) 和额头到额头 (PF) 连接的作用.
- 评估ccPAS作为理解视觉空间网络连接和临床康复的工具的潜力.
主要方法:
- 健康的参与者接受了前端到额头 (FP) 和额头到额头 (PF) 的ccPAS协议,刺激间隔 (ISI) 为10毫秒.
- 在ccPAS之前和之后,使用地标和手动线路分割任务来评估伪忽视.
- 一个控制实验测试了FP-ccPAS用更长的ISI (100毫秒) 来评估时间依赖.
主要成果:
- 面对对面的ccPAS与10 ms ISI显著增加了里程碑任务的左侧偏差.
- 没有观察到表至额头ccPAS或更长的ISI FP-ccPAS对伪忽视的显著影响.
- 手动线路切割任务在任何刺激方案后都没有显示出伪忽视的显著变化.
结论:
- 面向对面的ccPAS可以有效调节伪忽视,这表明它在准特定的大脑网络连接方面具有实用性.
- 这种调制可能涉及通过前额 - 形通路介导的增强自上而下的注意力控制.
- 在研究视觉空间和注意力网络以及视觉空间障碍的潜在治疗方法方面,FP-ccPAS显示出前景.
关键词:
连接性的连接性塑性是一种可塑性.通过骨磁刺激进行磁性刺激.视觉空间偏差是一种偏差.ccPASCCPASCCPASCCPASCCPASCCPASCCPASCCPASCCPASCCPASCCPASCCPASCCPASCCPASCCPASCCPASCCPASCCPASCCPASCCPASCCPASCCPASCCPASCCPASCCPASCCPASCCP更多相关视频
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