DEVELOPMENT OF AUDITORY-VISUAL LOCALIZATION

听觉视觉定位的发展

• 批准号: 6326524
• 负责人: SHINSUKE SHIMOJO
• 金额: $ 25.1万
• 依托单位: CALIFORNIA INSTITUTE OF TECHNOLOGY
• 依托单位国家: 美国
• 财政年份: 2001
• 资助国家: 美国
• 起止时间: 2001-04-10 至 2004-03-31
• 项目状态: 已结题
• 来源: https://reporter.nih.gov/project-details/6326524
• 关键词: clinical research; human subject; infant human (0-1 year); language development; psycholinguistics; sound perception; space perception; visual perception

DESCRIPTION: Most perceptual, cognitive, affective, and linguistic events are specified concurrently in different sensory modalities and are distributed across space and time. Spatial and temporal stimulus features can be represented equally well across modalities and thus provide a major basis for the integration of the heteromodal attributes of multimodally represented events and objects. Empirical evidence indicates that human infants can perceive some of these intermodal attributes and can use them to integrate heteromodal inputs. Most of this evidence concerns infants' perception and usage of temporal aspects of multimodal stimuli, such as synchrony, duration, rate, or rhythm. There has been relatively little research on the role of spatial factors in crossmodal integration, and the results remain equivocal in many cases. Given that spatially integrated multimodal events are a fundamental part of the infant's everyday experience, understanding the processes underlying the development of such abilities is critical. The purpose of the current project is to carry out a systematic investigation of the development of infants' responsiveness to intermodal spatial relations by studying responsiveness to intermodal targets with varying degrees of spatial separation in infants between 2 and 10 months of age. Head- and eye movements will be measured and will be used to investigate developmental differences in infants' responsiveness. A series of seven experiments is proposed to test various aspects of auditory-visual localization. The experimental apparatus has been designed in accordance with previous research of A-V localization in human adults and animals. The latter research will thus provide important baseline data and constraints of for interpreting the results obtained in this project. Standard psychophysical methods (race model analysis) will be employed to establish the mechanisms underlying the multimodal spatial integration process and its development. The empirical work will be complemented by modeling work. The model will incorporate the empirical results, and will provide a framework for the empirical research. The results will: (a) explicate mechanisms underlying the developmental changes in responsiveness to intermodal spatial relations, (b) add to our understanding of the development of a process that enables infants to learn about the psychological unity of their experience, and (c) help further develop and refine measures of perceptual functioning that already have proved to have diagnostic utility in detecting aberrant developmental outcomes.

描述：最感知，认知，情感和语言事件是 以不同的感觉方式同时指定并分布 跨越时空。空间和时间刺激特征可以是 跨模态同样很好地代表，因此为 多模式代表的异源属性的集成 事件和对象。经验证据表明，人类婴儿可以 感知其中一些模式属性，并可以使用它们进行集成 异源输入。大多数证据都涉及婴儿的看法和 多模式刺激的时间方面的使用，例如同步，持续时间， 速率或节奏。关于有关的作用的研究相对较少 跨模式整合中的空间因子，结果在 许多情况。鉴于空间整合的多模式事件是基本 婴儿日常经历的一部分，了解过程 这种能力的发展是至关重要的。 当前项目的目的是进行系统调查 婴儿对联运空间关系的反应的发展 通过研究对多样化目标的响应能力不同程度 婴儿2到10个月大的婴儿的空间分离。头和眼睛 将测量运动，并将用于调查发展 婴儿的反应能力差异。一系列七个实验是 提议测试听觉 - 视觉本地化的各个方面。这 实验设备已根据先前的研究设计 人类和动物中的A-V定位。因此，后者将 提供重要的基线数据和用于解释结果的约束 在这个项目中获得。标准心理物理方法（种族模型分析） 将被用来建立多模式空间的基础机制 集成过程及其发展。经验工作将是 通过建模工作补充。该模型将结合经验 结果，并将为实证研究提供框架。结果 威尔：（a）阐述了发展的机制 对中间空间关系的响应，（b）增加了我们对 一个过程的发展，使婴儿能够了解 他们经验的心理统一，（c）有助于进一步发展和 精炼的感知功能的衡量标准已经证明 检测异常发育结果的诊断效用。