声音编码的面部激活了早期失明的左侧状面部区域
Paula L Plaza1, Laurent Renier1,2, Stephanie Rosemann1
1Laboratory of Integrative Neuroscience and Cognition, Department of Neuroscience, Georgetown University Medical Center, Washington, DC, United States of America.
PloS one
|November 22, 2023
概括
早期失明的个体可以通过感官替代装置 (SSD) 学习使用声音编码的刺激来识别脸部. 这表明状面部区域 (FFA) 基于面部几何形状而不是视觉输入而发展.
科学领域:
- 神经科学是一个神经科学.
- 认知科学 认知科学
- 感官感知是一种感官感知.
背景情况:
- 面部感知依赖于专门的皮质区域,发展有争议.
- 有视力的人主要使用视力来识别面孔;早期失明的人使用听觉和触觉线索来识别形状.
研究的目的:
- 调查早期盲人是否可以使用听觉刺激来学习面部识别.
- 要确定状面部区域 (FFA) 是否对非视觉面部表示有反应.
主要方法:
- 使用感官替代装置 (SSD) 将图形面孔转换为编码声音的刺激.
- 使用功能磁共振成像 (fMRI) 来测量大脑活动.
主要成果:
- 早期的盲人参与者使用SSD成功地区分了面孔与其他形状.
- 功能性MRI揭示了声音编码的面部对左状面部区域 (FFA) 的偏好激活.
结论:
- FFA的发展不仅仅依赖于视觉面部体验.
- 对面部配置几何学的经验可能对FFA专业化至关重要.
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