AUDITORY PROCESSING IN HEARING-IMPAIRED CHILDREN

这个项目的总体目标是调查 听力障碍对听觉知觉组织的影响。已获得 这一结果可能对精炼和 区分听觉处理的概念，这是一种 沟通障碍的主要贡献者。研究对象将 既代表横断面组又代表纵向组。克罗斯- 分组将由200名儿童组成，100名正常儿童和100名正常儿童 听力受损，从3岁到7岁。纵向 小组将由10名正常儿童和10名听力障碍儿童组成， 随访期为3~6岁或4~7岁。我们的 研究听觉知觉组织的方法将是重点 关于如何确定言语的听觉和语义维度 在儿童的知觉加工中结合在一起。去调查 这个问题，一种儿科选择性注意任务，利用了 听觉言语与语义言语的冲突与契合 维度已经被构建。这项任务是一项儿科听觉 类似于众所周知的成年人，视觉程序，称为 “Stroop”测试我们预测，系统变化中的 语音的语义维度将与语言的加工相互作用 听觉维度符合《分析器》的模型 对多维信号的选择性注意。试点数据： 新开发的儿科听觉“Stroop”任务表明 听力正常和严重听力受损的儿童表现出 听觉和语义相互作用的不同模式 语言的维度。更多关于一大系列正常- 听力受损和听力受损的对象，范围很广 不同类型和程度的听力障碍，将 阐述这种互动模式的特点。结果 应提供以下方面的知识1) 正常知觉组织的发展，一个重要的方面 知觉加工，2)发展到什么程度 知觉组织受异常经验的影响 听觉刺激和3)语义加工的自动性 年幼的孩子。更好地理解正常的知觉 开发可能对设计有重要的临床意义 针对发育迟缓儿童的补救计划 知觉处理中的异常。更好地了解 听力障碍对知觉组织的影响可能是 重要的是要提高我们推动 听障儿童的正常沟通能力。

The overall goal of this project is to investigate the effect of hearing impairment on auditory perceptual organization. Obtained results may have important implications for refining and differentiating the concept of auditory processing, which is a primary contributor to communicative disorder. Subjects will represent both cross-sectional and longitudinal groups. Cross- sectional groups will consist of 200 children, 100 normal and 100 hearing-impaired, from 3 through 7 years of age. Longitudinal groups will consist of 10 normal and 10 hearing-impaired children, followed from either 3 to 6 years or from 4 to 7 years of age. Our approach to studying auditory perceptual organization will focus on determining how the auditory and semantic dimension of speech are combined in perceptual processing by children. To investigate this issue, a pediatric selective attention task that utilizes both conflict and congruence between auditory and semantic speech dimensions has been constructed. The task is a pediatric auditory analog of the well-known adult, visual procedure, termed the "Stroop" test. We predict that systematic variation in the semantic dimension of speech will interact with processing of the auditory dimension in accordance with the "analyzer" model of selective attention for multidimensional signals. Pilot data on the newly developed pediatric auditory "Stroop" task indicated that normal-hearing and severely hearing-impaired children exhibit different patterns of interaction between the auditory and semantic dimensions of speech. Further data on a large series of normal- hearing and hearing-impaired subjects, representing a broad range of different types and degrees of hearing impairment, will elaborate characteristics of this pattern of interaction. Results of the proposed project should provide knowledge about 1) the development of normal perceptual organization, an important aspect of perceptual processing, 2) the extent to which development of perceptual organization is influenced by abnormal experience with auditory stimulation and 3) the automaticity of semantic processing young children. Better understanding of normal perceptual development may have important clinical implications for the design of remediation programs for children with developmental abnormalities in perceptual processing. Better understanding of the effect of hearing impairment on perceptual organization may be important in improving our ability to promote the development of normal communication skills in hearing-impaired children.