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"面部细胞"的神经代码不是面部特定的.
Kasper Vinken1, Jacob S Prince2, Talia Konkle2
1Department of Neurobiology, Harvard Medical School, Boston, MA 02115, USA.
Science advances
|August 30, 2023
概括
对面部反应的大脑中神经元显示出基于对象一般信息的选择性,而不仅仅是面部特定特征. 分析对非面部物体的反应,揭示了超越传统面部中心研究的神经调节的洞察力.
科学领域:
- 神经科学是一个神经科学.
- 计算神经科学是一种神经科学.
- 灵长类动物的视力
背景情况:
- 面部细胞,神经元选择性地对面部做出反应,主要是使用面部刺激来研究.
- 这些神经元聚集在下皮质中,这是一个涉及视觉处理的区域.
- 当前的研究经常假设面部选择性源于独特的面部特征.
研究的目的:
- 通过分析对广泛物体的反应来研究神经选择性对面部的性质.
- 为了确定非面部对象属性是否预测面部选择性.
- 挑战对面部刺激的专注,以了解面部选择性神经元.
主要方法:
- 记录了子脸部和周围的神经反应,对数百种不同的物体进行了记录.
- 分析了神经元对面部和非面部刺激的反应概况.
- 利用在一般物体识别上训练的深度神经网络来建模神经反应.
主要成果:
- 找到了与面部选择性程度相关的非面部对象的分级响应配置文件.
- 证明了在一般对象训练深度神经网络中编码的信息可以比颜色或简单的形状更好地预测神经反应.
- 显示非面部对象反应提供了关于面部细胞调的额外信息.
结论:
- 神经元中的面部选择性不仅仅是基于面部特征,而是基于更广泛的对象表示.
- 类别选择性神经元的调在域-一般对象空间中更好地理解.
- 重新思考研究类别选择性神经元的方法,超越它们最有效的刺激是有必要的.
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