Improving the clinical utility of preschool language sample analysis

提高学前语言样本分析的临床实用性

基本信息

批准号：
10840717
负责人：
NAN BERNSTEIN RATNER
金额：
$ 35.36万
依托单位：
UNIV OF MARYLAND, COLLEGE PARK
依托单位国家：
美国
项目类别：
财政年份：
2018
资助国家：
美国
起止时间：
2018-08-01 至 2024-07-31
项目状态：
已结题

来源：
https://reporter.nih.gov/project-details/10840717
关键词：
Achievement Adult Age Age Months Archives Behavior Child Child Language Child Rearing Childhood Clinical Cognitive Complex Computer Assisted Data Development Diagnosis Diagnostic Sensitivity Disease Early Diagnosis Early identification Equipment and supply inventories Etiology Frequencies Grant Growth Health Impaired cognition Impairment Individual Infant Intervention Knowledge Laboratories Language Language Delays Language Development Learning Skill Length Measurable Measures Methods Modeling Morphology Mothers Motor Nursery Schools Oral Outcome Pattern Productivity Prognosis Records Recovery Resources Risk Sampling Sensory Speech Standardization Statistical Models Structure System Techniques Testing Time Toddler Vocabulary Vocation Work cognitive skill cohort design effective intervention experience improved improved outcome indexing kindergarten language impairment lexical longitudinal analysis motor impairment outcome prediction parent grant peer phonology phrases prospective recruit response skills social statistical learning syntax tool

项目摘要

Project Summary Late talking (LT; late emergence of expressive language skill) in the absence of obvious primary perceptual, cognitive or motor impairment, is a serious developmental condition that may lead to academic, social and vocational handicap. While a majority of LTs appear to recover, many do not “catch up” and predicting why outcomes differ has been elusive. This supplemental application seeks to use a subset of the data being analyzed by the parent grant to perform a variety of longitudinal analyses of speech and language growth in late talkers (LTs) compared with typically-developing (TD) peers. Its overarching aim is to detect skills prior to and at roughly 24 months of age that may predict which children recover from late onset of expressive language and which children will experience lasting expressive language impairment. Our approach includes tracking the following sets of skills/behaviors from 24 to ~ 60 months of age in a combined cohort of > 70 LTs (and their TD peers). Of the LT children, roughly one-third remained persistently delayed by kindergarten entry, while 2/3 recovered to within the TD range of achievement. We examine: 1) growth in phonological inventory and syllable structure development; 2) recast behaviors by parents and the children’s responses to such recasts; 3) growth in expressive vocabulary diversity using a recently re-validated measure of lexical development; 4) differences in expressive phrase structure development, as measured by the Index of Productive Syntax, as potential predictors of more favorable outcome from LT. We will also examine whether infant speech segmentation and statistical learning skills assessed before 12 months of age in an additional sub-corpus followed by the parent grant were predictive of recovery from LT. A final analysis will examine the relationship of nonword repetition (NWR) at 24 months of age to later expressive language skills. Factors that appear to influence outcome of LT will be incorporated into a statistical model that best captures individual risk for persistence and recovery. Results will enable better and earlier identification of children for whom more intensive and targeted intervention is warranted. Further, understanding which skills appear to predict recovery will enable more informed language intervention targets and methods.

项目摘要在没有明显的初级的情况下感知，认知或运动障碍是一种严重的发育状况，可能导致学术，社会和职业障碍。虽然大多数LTS似乎都恢复了，但许多LT没有“抓住 ”并预测为什么不同的结果是难以捉摸的。这种补充应用程序试图使用父母赠款正在分析数据的子集，以执行各种纵向分析与通常开发（TD）的同伴相比，已故谈话者（LTS）的语音和语言增长。总体目的是在大约24个月之前和24个月以前检测技能，以预测哪个技能儿童从富有表现力的晚期发作中恢复过来，哪些孩子会经历持久的表达语言障碍。我们的方法包括跟踪以下技能/行为从> 70 LTS（及其TD同行）组合组合的队列中，从24至60个月大。载有lt的孩子大约有三分之一仍然被幼儿园的入口持续延迟，而2/3恢复到内部 TD成就范围。我们检查：1）语音清单和音节结构的增长发展; 2）父母的重塑行为以及孩子对此类重铸的反应； 3）增长使用最近重新验证的词汇发展测量的表达性词汇多样性； 4）通过生产语法指数衡量的表达性短语结构发展的差异，作为LT更有利结果的潜在预测指标。我们还将检查婴儿演讲是否在12个月大之前评估的细分和统计学习技能其次是父母赠款的预测，可预测从LT恢复。最终分析将检查在24个月大时，非单词重复（NWR）与以后表达语言技能的关系。因素这似乎影响了LT的结果，将纳入最佳捕获的统计模型个人持久和恢复的风险。结果将使更好，更早地识别有必要为更密集和有针对性干预的儿童。此外，了解哪个似乎可以预测恢复的技能将使更明智的语言干预目标和方法。