在先天性聋人感官皮层的功能布线中的神经塑性变化:网络分析
Michaela Ruttorf1,2, Zohar Tal3,4, Lénia Amaral5
1Computer Assisted Clinical Medicine, Heidelberg University, Mannheim, Germany.
Human brain mapping
|November 13, 2023
概括
遗传性耳聋导致大脑重组显著,在视觉任务期间,乳头核与听觉区域连接. 这突显了神经可塑性和聋人大脑中视觉信息的潜在重定向.
科学领域:
- 神经科学是一个神经科学.
- 神经成像是一种神经成像.
- 感官处理 感官处理
背景情况:
- 先天性感官剥夺导致大脑的结构和功能发生重大变化.
- 跨模态可塑性是关键特征,缺少皮质区域处理来自其他感官的信息.
研究的目的:
- 研究先天性聋人个体视觉和听觉网络的神经可塑性变化.
- 评估由于先天性聋的网络社区结构和连接模式的变化.
主要方法:
- 分析聋人和听力人士的视觉和听觉网络.
- 利用不同的视觉任务来观察大脑活动.
- 检查了网络社区结构和连接模式.
主要成果:
- 听觉个体表现出三个不同的大脑社区 (视觉,听觉,皮层下).
- 聋人个人表现出第四个社区,包括上神经和temporo-insular区域.
- 听力障碍者在视觉任务中与听力障碍者不同的是,马体 (包括侧面生殖器体,肺部) 与听觉区域连接在一起,而听力障碍者则不同.
结论:
- 遗传性耳聋会在听觉和视觉网络中产生显著的神经可塑性.
- 聋人体内的皮层下丘脑核在视觉处理过程中显示出对听觉区域的高度连接.
- 这些发现表明,在先天性聋症中,thalamic中继区域可能会将视觉信息重定向到听觉皮质.
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