The Development of Suprathreshold Form Perception in Infancy

形状感知是一种重要的能力， 日常任务，如阅读、驾驶和识别熟悉的 脸上 线性系统模型的应用 基于婴儿对比度测量的感知 灵敏度函数使研究人员对 了解婴儿的识别能力的发展 环境中的信息和发展基本 视觉过程 尽管如此，最近的数据表明，线性系统 可能需要修改模型以适用于高对比度， 阈上刺激 这一修改很重要，因为 真实的世界中的大多数物体的对比度都很高，因此 很容易被婴儿发现。 斯蒂芬斯博士的主要目标 项目是确定线性系统所需的修改 模型，以将其扩展到更多的真实的世界情况。 该项目涉及三个重要且密切相关的领域 的研究。 第一个涉及的发展和功能 婴儿的对比恒定性。 第二条研究路线是 关注形式歧视的发展。 第三 调查领域的目的是测试的应用程序 基于对比敏感度的婴儿发育模型 脸偏好

Form perception is an important capability that is involved in everyday tasks such as reading, driving and recognizing familiar faces. The application of linear systems models of form perception that are based on measurements of the infant contrast sensitivity function have led researchers to a deeper understanding of the development of infants' ability to detect information in their environment and the development of basic visual processes. Despite this success, recent data suggest that linear systems models may need to be modified to be applicable to high contrast, suprathreshold stimuli. This modification is important because most objects in the real world are high in contrast, and hence easily detected by infants. The main goal of Dr. Stephens' project is to identify the modifications needed by linear systems models to extend them to more real world situations. This project addresses three important and closely related lines of research. The first involves the development and function of contrast constancy in infants. The second line of research is concerned with the development of form discrimination. The third area of investigation is designed to test the application of contrast sensitivity based models to the development of infant face preferences.