Development of Inhibitory Control during Infancy

项目总结/摘要 随着第一年后期抑制过程的出现，婴儿开始表现出原始的自主性 调控我们的调查是一个发展认知神经科学的发展检查， 抑制控制使用纵向设计，我们将测试是否行为和神经生理水平， 分析反映了婴儿期两种特定类型的抑制控制的区别：注意力抑制和 认知抑制婴儿将被视为每月从5至12个月的年龄和完全抑制控制 任务，同时记录大脑电生理学。我们将使用行为，EEG功率和EEG相干性， 描述抑制控制过程类型的发展。我们提出的研究对于 了解早期认知发展。科学界需要进行研究， 描述早期认知的正常轨迹，以区分发展中的个体差异 从非最佳轨道。我们的研究将为抑制控制的研究提供基础科学基础。 我们将讨论三个研究问题。1)在抑制控制上的绩效分布是什么 任务？2)在不同年龄阶段，不同类型的抑制控制任务的表现是否相关？3)是什么 从5到12个月的年龄的两种类型的抑制控制的增长率？

PROJECT SUMMARY / ABSTRACT With the emergence of inhibitory processes late in the first year, infants begin to exhibit primitive voluntary regulation. Our investigation is a developmental cognitive neuroscience examination of the development of inhibitory control. Using a longitudinal design, we will test whether behavioral and neurophysiological levels of analysis reflect distinctions in two specific types of inhibitory control during infancy: attention inhibition and cognitive inhibition. Infants will be seen monthly from 5 to 12 months of age and complete inhibitory control tasks while brain electrophysiology is recorded. We will use behavior, EEG power, and EEG coherence to characterize the development of types of inhibitory control processes. Our proposed study is critical for understanding early cognitive development. There is a need in the scientific community for research that characterizes normal trajectories in early cognition in order to distinguish individual differences in development from non-optimal trajectories. Our study will provide that basic science foundational work on inhibitory control. We will address three research questions. 1) What is the distribution of performance on the inhibitory control tasks? 2) Is performance on the different types of inhibitory control tasks correlated at each age? 3) What are growth rates of the two types of inhibitory control from 5 to 12 months of age?