INFANT COGNITIVE AND EEG DEVELOPMENT--BASIC PROCESSES

行为神经科学的最新进展 新皮层发育区与脑内发育的关系 新兴的行为技能 目前研究的目的是 以非侵入性的方式检查 中枢神经系统活动和特定认知和 影响引出任务。 中枢神经系统活动的测量 使用的是头皮记录的脑电活动（ 脑电图）。 将在纵向研究中对48名婴儿进行随访。 这项研究将 开始于婴儿6个月大时，结束于婴儿12岁时 月龄。 孩子们每个月都要看一次。 每月 评估时，将在婴儿清醒时记录8个EEG通道 静静地坐着 在每个月的评估中， 提出了一系列任务，旨在挖掘特定的认知 行为，并引发一定的情感反应。 认知任务 将包括具有不同延迟的AE任务，物体检索，以及 Uzgiris-Hunt物体持久性量表与声音和手势 模仿。 设计用来引发情感的任务包括呈现 新奇的物品和面具以及与母亲短暂的分离 一 将收集横截面样本，以防止实践 影响，并审查发展中的不连续性。 不同频段的功率测量和 将计算不同电极位置对之间的相干性 脑电图数据。 利用当前的EEG模型， 频率成分和相干性与婴儿任务表现之间的关系 将被审查。 这些数据将是第一批调查 脑电活动与认知和情感任务的变化 生命第一年的表现。

Recent advances in behavioral neuroscience have permitted investigation of the relations between developing areas of neocortex and emerging behavioral skills. The purpose of the current research is to examine in a non-invasive manner the relations between the maturation of central nervous system activity and performance on specific cognitive and affect eliciting tasks. The measure of central nervous system activity to be used is brain electrical activity recorded off the scalp (the electroencephalogram). 48 infants will be followed in a longitudinal study. The study will begin when infants are six months of age and end when infants are twelve months of age. Infants will be seen once a month. At each monthly assessment, 8 channels of EEG will be recorded while the infant is awake and sitting quietly. At each monthly assessment the infant will be presented with a set of tasks designed to tap specific cognitive behaviors and to elicit certain affective responses. The cognitive tasks will include the AE task with varying delay, object retrieval, and the Uzgiris-Hunt Scales of Object Permanence and Vocal and Gestural Imitation. The tasks designed to elicit affect include presentation of novel objects and masks and brief separation from mother. A cross-sectional sample will be collected to guard against practice effects and to examine discontinuities in development. Measures of power in different frequency bands and measures of coherence between different pairs of electrode sites will be computed from the EEG data. Utilizing current models of the EEG, relations between frequency components and coherence and infant task performance will be examined. These data will be among the first to investigate relations between changes in brain electrical activity and cognitive and affective task performance during the first year of life.