在先天盲的成年人中,由新学到的听觉脚本引起的腹部视觉流中的快速可塑性
Roni Arbel1, Benedetta Heimler2, Amir Amedi3
1Department of Medical Neurobiology, Hebrew University of Jerusalem, Hadassah Ein-Kerem, Jerusalem, Israel; Department of Pediatrics, Hadassah Mount Scopus Hospital, Jerusalem, Israel.
Neuropsychologia
|September 23, 2023
概括
新盲的成年人可以通过感官替代装置 (SSD) 学习使用声音阅读. 简短的训练 (2小时) 激活视觉大脑区域,而较长的训练 (12小时) 招募视觉词形区域进行听觉阅读.
科学领域:
- 神经科学是一个神经科学.
- 认知科学 认知科学
- 感官替代 感官替代 感官替代
背景情况:
- 皮层区域可以被招募用于任务,无论传感输入模式如何.
- 视觉阅读网络被盲人触摸式盲文阅读激活.
- 视觉区域的交叉模式可塑性的速度尚未得到充分理解.
研究的目的:
- 为了研究听觉输入如何快速调节典型的视觉大脑区域的活动.
- 探索一种新的听觉阅读系统的潜力,用于先天盲人.
主要方法:
- 开发OVAL,一种新的听觉阅读拼写.
- 使用EyeMusic视觉到听觉感官替代装置 (SSD).
- 使用功能磁共振成像 (fMRI) 来观察训练2h和12h后的大脑活动.
主要成果:
- 两个小时的OVAL训练导致了右腹视觉流的调制.
- 经过12小时的OVAL训练,左腹视觉流得到了调用,包括视觉词形区域.
- 听觉刺激可以在短期SSD训练后招募被剥夺的腹部视觉流.
结论:
- 通过听觉刺激,可以通过视觉区域进行交叉模式的招募.
- 视觉文字形式领域的计算选择性交叉模式招聘需要广泛的培训 (∼12小时).
- 感官替代器件为通过替代感官通路恢复阅读能力提供了一个有希望的途径.
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