婴儿在2个月大时,在腹皮质中具有丰富的视觉类别
Cliona O'Doherty1,2, Áine T Dineen3,4, Anna Truzzi3,4,5
1Trinity College Institute of Neuroscience, Trinity College Dublin, Dublin, Ireland. clionaod@stanford.edu.
Nature neuroscience
|February 2, 2026
概括
视觉分类的基础在婴儿大脑的早期出现. 功能磁共振成像 (fMRI) 显示了视觉皮层在2个月大时的类别结构,挑战了层次发展理论.
科学领域:
- 神经科学是一个神经科学.
- 发展心理学 发展心理学
- 计算视觉 计算机视觉 计算机视觉
背景情况:
- 在测量类别化的神经表征时,婴儿看着行为是有限的.
- 了解早期视觉类别的发展需要先进的神经成像和计算模型.
- 婴儿时期类别表示的精确时间和神经基础仍然不清楚.
研究的目的:
- 研究人类婴儿视觉类别发展的神经基础.
- 为了确定何时在婴儿大脑的视觉皮层中出现分类结构.
- 探索婴儿视觉表现和视觉计算模型之间的关系.
主要方法:
- 在100多名2个月大的婴儿身上进行了清醒的功能磁共振成像 (fMRI).
- 在9个月大时进行后续扫描.
- 利用深度神经网络模型来分析表示几何.
主要成果:
- 在2个月大的婴儿的高层视觉皮质中确定了分类结构.
- 这种分类结构在横向视觉皮层之前出现在腹部视觉皮层.
- 一个深度神经网络模型证明了与婴儿的表示几何学的一致性.
- 婴儿类型模板包含不同复杂性的特征,可以从视觉输入统计学中学习.
结论:
- 复杂的视觉处理在2个月大时就存在于腹部视觉皮层.
- 婴儿的视觉类别发展可能不遵循严格的层次模式.
- 这些发现提供了对类别感知早期出现和神经支的见解.
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