Accounting for variations in parental speech and gesture

描述（由申请人提供）：拟议的项目将提供一个沟通的详细描述，母亲与他们的幼儿使用，并将调查在这种沟通输入的变化预测。参与者包括65对母子，选择反映人口统计学的芝加哥地区，和40对夫妇的家庭，儿童有缺血性单侧脑损伤。这些数据来自母亲与孩子互动的录像带，以及母亲对有关语言和感知技能、抑郁和儿童发展知识的问卷调查的回答。儿童21/2岁时的母子视频互动将被转录用于言语互动，并编码用于手势使用。相关性分析将检查母亲的语言和非语言措施之间的关系。多元回归分析将调查潜在的预测因素（即，语言/空间技能，抑郁症，儿童发展知识）的语言和非语言沟通，控制儿童因素。个体生长建模技术将确定在30个月至54个月的儿童年龄之间，母亲的语言和非语言测量是否随时间发生显著变化。最后，将使用方差分析来比较两组父母对投入措施的影响。

DESCRIPTION (provided by applicant): The proposed project will provide a detailed description of the communication that mothers use with their young children, and will investigate predictors of variation in this communicative input. The participants consist of 65 mother-child dyads chosen to reflect the demographics of the Chicago area, and 40 dyads from families where children have ischemic unilateral brain injury. The data come from videotapes of mother-child interaction, and maternal responses on questionnaires regarding verbal and perceptual skills, depression, and knowledge about child development. Mother-child videotaped interaction at child age 21/2 years will be transcribed for verbal interaction and coded for gesture use. Correlational analyses will examine the relationship between maternal verbal and nonverbal measures. Multiple regression analyses will investigate potential predictors (i.e., verbal/spatial skills, depression, knowledge of child development) of verbal and nonverbal communication, controlling for child factors. Individual growth modeling techniques will determine if there is significant change over time in maternal verbal and nonverbal measures between child age 30 and 54 months. Finally, analysis of variance will be used to compare the two groups of parents on input measures.