Sara T. Kover, University of Washington; and Leonard Abbeduto, University of California, Davis.
Am J Intellect Dev Disabil. 2019 Nov;124(6):511-534. doi: 10.1352/1944-7558-124.6.511.
This study was designed to establish the extent of delay in complex sentence use by females with fragile X syndrome (FXS) and to identify sources of variability among individuals. Females with FXS ( = 16; 10;2-15;7) and younger typically developing girls ( = 17; 4;1-8;11) were group-wise matched on nonverbal cognition and receptive syntax. Language samples (conversation and narration) yielded syntactic complexity in terms of mean length of C-unit (MLCU) and Developmental Level sentence coding (DLevel; Rosenberg & Abbeduto, 1987 ). Complex syntax was not weaker than developmental expectations; however, MLCU was lower than expected for age. Phonological memory and verbal working memory correlated with measures of syntactic complexity in narration. Discourse demands may play an important role in the language produced by females with FXS.
本研究旨在确定脆性 X 综合征（FXS）女性在使用复杂句方面的延迟程度，并确定个体之间差异的来源。根据非言语认知和接受性语法，将 FXS 女性（= 16；10；2-15；7）和年龄较小的典型发育女孩（= 17；4；1-8；11）进行分组匹配。语言样本（对话和叙述）以 C 单位的平均长度（MLCU）和发育水平句子编码（DLevel；Rosenberg & Abbeduto，1987）来表示句法复杂性。复杂句法并不弱于发展预期；然而，MLCU 低于预期的年龄。语音记忆和言语工作记忆与叙述中的句法复杂性测量相关。语篇需求可能在 FXS 女性的语言产生中发挥重要作用。
