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VISUAL FORM RECOGNITION IN EARLY INFANCY

婴儿早期的视觉形式识别

基本信息

批准号：
6402661
负责人：
LADAN B SHAMS
金额：
$ 4.02万
依托单位：
CALIFORNIA INSTITUTE OF TECHNOLOGY
依托单位国家：
美国
项目类别：
财政年份：
2001
资助国家：
美国
起止时间：
2001-08-01 至
项目状态：
未结题

来源：
https://reporter.nih.gov/project-details/6402661
关键词：
behavioral /social science research tag bias clinical research computational neuroscience computer simulation cues developmental neurobiology early experience form /pattern perception human subject infant human (0-1 year) neural information processing psychophysiology videotape /videodisc visual perception visual stimulus

项目摘要

The work described in this proposal will be a step towards the understanding of the development of visual form perception. The first step in understanding this process is to distinguish the necessary and sufficient stimuli (or the type of information) needed for this task in early infancy. Once the type of information used by the brain is determined, then the potential computational mechanisms allowed by the stimuli can be explored, and the developmental origins of the computational mechanisms can be analyzed and investigated. We propose a systematic method of attacking these issues using an integrated psychophysical infant experiments and computational modeling approach. In exploring each issue, we use the result of experiments in order to guide our analysis through modeling and simulation, and use the result of the simulations in order to guide the experiments. Such interplay between the two complementary approaches, we believe, is crucial for a methodological and rigorous study of a highly complex system such as the brain--in particular the developing brain. The knowledge of the role of various cues exploited by the visual system at different stages of development, and the type and process of learned functionalities will contribute to the medical applications aimed at facilitation and improvement of learning for visually-impaired infants, as well as educational applications enhancing the development of normal infants. While this research builds on previous work on the topic, it is the first rigorous investigation of issues such as the level of object form representation in infancy, the computational mechanisms and the developmental origins.

本提案中描述的工作将是理解视觉形式感知发展的一个步骤。理解这一过程的第一步是区分婴儿早期完成这一任务所需的必要和足够的刺激（或信息类型）。一旦确定了大脑使用的信息类型，就可以探索刺激所允许的潜在计算机制，并分析和研究计算机制的发展起源。我们提出了一个系统的方法来攻击这些问题，使用综合的心理物理婴儿实验和计算建模方法。在探索每个问题时，我们使用实验的结果来指导我们通过建模和仿真的分析，并使用仿真的结果来指导实验。我们认为，这两种互补方法之间的这种相互作用对于从方法上严格研究大脑等高度复杂的系统，特别是发育中的大脑至关重要。视觉系统在不同发育阶段所利用的各种线索的作用的知识，以及学习功能的类型和过程将有助于促进和改善视力受损婴儿的学习的医学应用，以及促进正常婴儿发育的教育应用。虽然这项研究建立在以前的工作的主题，它是第一个严格的调查问题，如婴儿期的对象形式表示的水平，计算机制和发展的起源。