从先前知识的感知重组在童年晚期出现
Georgia A Milne1,2, Matteo Lisi3, Aisha McLean1
1Institute of Ophthalmology, University College London, EC1V 9EL London, UK.
iScience
|February 2, 2024
概括
孩子 孩子 孩子 孩子
科学领域:
- 认知神经科学是一种认知神经科学.
- 发展心理学是发展心理学.
- 计算视觉是指计算机视觉.
背景情况:
- 人类视觉在很大程度上整合了对物体识别的先前知识.
- 从更高的大脑区域的自上而下处理影响早期视觉皮层活动.
- 这种以知识为导向的知觉的发展轨迹尚不清楚.
研究的目的:
- 研究事先知识诱导的视觉感知在发育过程中的出现.
- 为了确定儿童整合先前知识以识别退化图像的年龄.
- 将人类发育数据与视觉处理的计算模型进行比较.
主要方法:
- 呈现了4至12岁的孩子和成年人的双色图像 (降级照片).
- 成年人在双色版本之前查看了原始照片,以诱导识别.
- 将人类性能与具有不同架构的三个神经网络模型进行比较.
主要成果:
- 成年人在观看原件后显示强制识别双色图像,这表明了自上而下的处理.
- 7-9岁以下的儿童没有表现出这种以知识为导向的感知转变.
- 性能最好的神经网络模型反映了幼儿 (4-5岁) 的基于特征的处理.
结论:
- 以先验知识为指导的视觉感知在童年后期逐渐发展.
- 幼儿主要使用基于特征的处理,而成年人则采用整体策略.
- 整合先前知识与感官输入的这种发育转变对于感知发展至关重要.
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