DEVELOPMENT OF AUDITORY-VISUAL LOCALIZATION

听觉视觉定位的发展

基本信息

批准号：
6637973
负责人：
SHINSUKE SHIMOJO
金额：
$ 24.22万
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：
2001-04-10 至 2005-03-31
项目状态：
已结题

来源：
https://reporter.nih.gov/project-details/6637973
关键词：
clinical research human subject infant human (0-1 year) language development psycholinguistics sound perception space perception visual perception

项目摘要

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：大多数感知、认知、情感和语言事件都是在不同的感觉模式中同时指定并分布跨越空间和时间。空间和时间刺激特征可以是不同模式的表现同样出色，从而为多模态表示的异模态属性的整合事件和对象。经验证据表明，人类婴儿可以感知其中一些联运属性并可以使用它们来整合异模态输入。大多数证据涉及婴儿的感知和使用多模式刺激的时间方面，例如同步性、持续时间、速率，或节奏。对于其作用的研究相对较少。跨模式整合中的空间因素，结果仍然模棱两可很多情况。鉴于空间整合的多模式事件是一个基本的婴儿日常经历的一部分，了解过程发展这种能力的基础至关重要。当前项目的目的是进行系统调查婴儿对联运空间关系反应能力的发展通过研究对不同程度的多式联运目标的响应 2 至 10 个月大婴儿的空间分离。头部和眼睛运动将被测量并将用于调查发育婴儿反应能力的差异。一系列七个实验是建议测试听觉视觉定位的各个方面。这实验装置是根据以往的研究设计的成人和动物的 A-V 定位。因此，后者的研究将提供重要的基线数据和解释结果的约束在这个项目中获得。标准心理物理学方法（种族模型分析）将用于建立多模式空间的基础机制集成过程及其发展。实证工作将是并辅以建模工作。该模型将结合经验的结果，并将为实证研究提供框架。结果将：(a) 解释发展变化背后的机制对多式联运空间关系的响应，(b) 增加了我们对开发一个过程，使婴儿能够了解他们的经验的心理统一，以及（c）帮助进一步发展和完善已经被证明有效的知觉功能测量检测异常发育结果的诊断效用。