COMMUNICATIVE AND SYMBOLIC PRECURSORS TO AAC DEVELOPMENT

AAC 发展的交流和象征性先驱

• 批准号: 2458510
• 负责人: CYNTHIA J CRESS
• 金额: $ 8.79万
• 依托单位: UNIVERSITY OF NEBRASKA LINCOLN
• 依托单位国家: 美国
• 财政年份: 1995
• 资助国家: 美国
• 起止时间: 1995-08-01 至 2000-01-31
• 项目状态: 已结题
• 来源: https://reporter.nih.gov/project-details/2458510
• 关键词: behavioral /social science research tag; child with disability; communication behavior; data collection; human subject; language development; play; psycholinguistics; psychomotor function; social behavior

This work is designed to extend our knowledge of the communicative and symbolic behaviors that facilitate the initial acquisition of augmentative and alternative communication (AAC) skills in young children at risk for poor vocal expressive communication. Research in normal language development has shown that early communicative behaviors, such as symbolic gestures and joint attention routines, predict the rate and extent of later language development. Access to AAC has been demonstrated as a means to acquire some of the necessary prelinguistic and cognitive skills that are essential for language development, but AAC is ratrely implemented before the age of 3-4 years. There is a widespread clinical need for better early identification of children who need intensive therapy to avoid the language delays associated with poor access to expressive communication. Existing data do not provide adequate information about either the expected language progress of young AAC users or the communicative characteristics that indicate concern for later development. Therefore, the current project will analyze the process of acquiring AAC skills in parallel with prelinguistic communicative behaviors for children with severe physical disabilities. The proposed research project will address three specific aims by: (a) measuring communicative and symbolic behavior development in young children who require AAC intervention due to severe physical impairments, (b) examining predictors of the early symbolic use of AAC, and (c) testing the validity of hroup data at predicting AAC development for individual children. Longitudinal data will be collected from children beginning at the ages in which normally developing children begin to display communicative behaviors that precede symbolic development, and ceasing when children display criterion levels of AAC skills. Data will be analyzed and compared for the following factors: communicative and symbolic behaviors during struyctured and unstructured tasks, interaction style and joint attention routines during free play, standardized tests of language, cognition, and motor development, and AAC skills at using switch and voice output technology to convey different communicative functions in structured interactions. The outcome of this analysis will then be used to assess precursors to successful AAC use and to develop and test predictions for early identification of subjects who do not demonstrate criterion level AAC skills. It is predicted that early communicative and interactional patterns will distinguish children who develop criterion levels of AAC competence from children who do not show functional AAC contro by the end of the study. The resulting benefits for health professionals will be better criteria for early referral for AAC services, clearer identification of critical goals for efficacious treatment, and more efficient application of AAC assessment and treatment criteria for children who have the greatest need for those services.

这项工作的目的是扩大我们的知识的沟通和 符号行为，促进最初的收购增强 和替代性沟通（AAC）技能 声音表达能力差。 正常语言研究 发展表明，早期的交际行为，如象征性的， 手势和联合注意例程，预测的速度和程度， 后来的语言发展。 获得审计咨询委员会的机会已被证明是一种 意味着获得一些必要的前语言和认知技能 对语言发展至关重要，但AAC 在3-4岁之前实施。 有一个广泛的临床 需要更好地及早识别需要强化教育的儿童 治疗，以避免语言延迟与穷人获得 表达性沟通 现有数据不足以提供 关于年轻AAC用户的预期语言进步的信息 或者是表达对以后的关注的交际特征 发展 因此，本项目将分析 获得AAC技能与前语言交际平行 严重身体残疾儿童的行为。 拟议 研究项目将通过以下方式实现三个具体目标：（a）衡量 沟通和象征行为的发展， 由于严重的身体损伤而需要AAC干预，（B）检查 AAC早期符号使用的预测因素，以及（c）测试有效性 在预测儿童个体AAC发展方面， 纵向数据将从20岁开始收集， 正常发育的孩子开始表现出交流能力 在符号发展之前的行为，当儿童 显示AAC技能的标准级别。 将对数据进行分析， 比较以下因素：沟通行为和象征行为 在结构化和非结构化任务中，交互风格和关节 自由游戏时的注意力程序，语言的标准化测试， 认知，运动发展，以及使用开关和声音的AAC技能 输出技术传达不同的交际功能， 结构化互动。 分析结果将用于 评估成功使用AAC的前体，并开发和测试 预测早期识别未证明 标准水平AAC技能。 据预测，早期的沟通和 干预模式将区分儿童谁发展的标准 未显示功能性AAC的儿童的AAC能力水平 在研究结束时进行控制。 由此产生的健康益处 专业人士将是早期转诊接受AAC服务的更好标准， 更明确地确定有效治疗的关键目标，以及 更有效地应用审计咨询委员会的评估和处理标准， 最需要这些服务的儿童。