人工实施方案取代皮质神经磁性体感官反应
Silvia L Isabella1,2, Marco D'Alonzo3, Alessandro Mioli3
1NeXT: Neurophsyiology and Neuro-Engineering of Human-Technology Interaction Research Unit, Universita' Campus Bio-Medico di Roma, Rome, Italy. s.isabella@unicampus.it.
Scientific reports
|September 27, 2024
概括
大脑中的神经可塑性.
科学领域:
- 神经科学是一个神经科学.
- 认知科学 认知科学
- 神经可塑性 神经可塑性
背景情况:
- 整合人工四肢需要神经可塑性变化.
- 实现实施的确切塑料工艺尚未完全理解.
- 体感反对于人工肢体的整合至关重要.
研究的目的:
- 在手幻觉 (RHI) 期间,研究主要体感皮质 (S1) 中的神经塑性变化.
- 为了确定人工四肢体现的基础上的大脑机制.
- 为了将体感唤起场 (SEF) 的变化与实施范围相关联.
主要方法:
- 在手幻象 (RHI) 之前和之后,在19名成年人中,对体感唤起场 (SEF) 的神经磁性记录.
- 电刺激小手指和指以引起SEFs.
- 在特定时间点 (20毫秒和35毫秒) 中,对主要体感皮层 (S1) 中的SEF位移进行分析.
主要成果:
- 在3b区域的20 ms的早期SEF位移与实施范围相关.
- 随后,在35毫秒的时间内,观察到后部SEF向1区移动.
- 后来的位移与实施范围无关,表明不同的功能角色.
结论:
- 在人工肢体实施过程中,S1中发生了多种神经可塑性过程.
- 3b区的早期变化可能会影响肢体所有权,而1区的后期变化则与视觉触觉整合有关.
- 这些发现提供了对大脑适应人工四肢的见解,这与假肢相关.
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