LANGUAGE INFORMATION PROCESSING

“在线”方法提供了对语言时间进程的洞察 正在处理。项目4提出了一系列在线实验，以 听觉语言加工的时间微结构研究 正常发育的儿童，在正常的加工条件下和在 为刺激加工缺陷而设计的异常条件 假设为某些形式的发育性语言障碍的基础 (即，知觉退化，以刺激有缺陷的加工 感知机制；压缩语音，模拟时间上的缺陷 整合)。我们将以实时Word和 从5岁到青春期的句子处理，以及 将这些结果与我们在临床上观察到的加工过程进行比较 人口。实验将聚焦于不同的任务和句子 从5年到青春期的过程，并比较 结果与在我们的临床人群中观察到的加工特征相一致。 实验将侧重于不同的任务和模式，包括(1) 句子解释，使用句法复杂性不同的刺激 并在收听者可以明确表示 口译；(2)语法性判断，注重发展 对违反语法的行为的准确性和反应时间的变化 形态，这是已知在儿童中特别脆弱的一个领域 发育性语言障碍；(3)单词理解，进进出出 句子的上下文，查看语音信息量 不同年龄的儿童需要识别和重复一个目标 单词，以及促进和/或抑制的发展变化 句子语境对准确性和反应时的贡献；(4)词 产出，在句子上下文中和在句子上下文之外，看发展 语义和语音线索的相对贡献的变化 图片命名任务中的准确度、词头潜伏期和词时。 与中心的其他项目合作，我们将比较 在我们的“在线”任务中出现的时间处理配置文件 儿童在“离线”语言能力测量中的表现(与 Reilly博士，“在线”处理非语言刺激(与Dr. 以及实时语言处理的电生理学研究 (与迈尔斯)最后，我们将对词汇和词汇进行初步研究 正在习得意大利语的儿童的语法加工 屈折的语言，允许更详细地检查 语法形态实时处理的发展变化，以及 已知在人群中特别易受伤害的语言领域 有语言障碍的儿童和成人。

"On-line" methods provide insights into the time course of language processing. Project 4 proposes a series of on-line experiments to investigate the temporal microstructure of auditory language processing in normally developing children, under normal processing conditions and under abnormal conditions designed to stimulate the processing deficits hypothesized to underlie some forms of developmental language impairment (i.e., perceptual degradation, to stimulate processing with a deficient perceptual mechanism; compressed speech, to simulate deficits in temporal integration). We will document developmental changes in real-time word and sentence processing across the period from 5 years to adolescence, and compare those results with the processing profiles observed in our clinical populations. Experiments will focus on different tasks and sentence processing across the period from 5 years to adolescence, and compare those results with the processing profiles observed in our clinical populations. Experiments will focus on different tasks and modalities, including (1) sentence interpretation, using stimuli that vary in syntactic complexity and in the point in time at which the listener can make an unambiguous interpretation; (2) grammaticality judgment, focusing on developmental changes in accuracy and reaction time to violations of grammatical morphology, an area that is known to be particularly vulnerable in children with developmental language disorders; (3) word comprehension, in and out of a sentence context, looking at the amount of phonetic information that children of different ages need in order to recognize and repeat a target word, and at developmental changes in the facilitative and/or inhibitory contributions of sentential context on accuracy and reaction time; (4) word production, in and out of a sentence context, looking at developmental changes in the relative contribution of semantic and phonetic cues to accuracy, word onset latency and word duration in a picture-naming task. In collaboration with the other projects in the Center, we will compare the temporal processing profiles that emerge in our "on-line" tasks with performance by children in "off-line" measures of language ability (with Dr. Reilly, 'on-line' processing of nonlinguistic stimuli (with Dr. Stiles), and electrophysiological studies of real-time language processing (with Miles). Finally, we will conduct pilot studies of lexical and grammatical processing in children who are acquiring Italian, a richly inflected language that permits a more detailed examination of developmental changes in real-time processing of grammatical morphology, an area of language that is known to be particularly vulnerable in populations of children and adults with language disorders.