Broomell Alleyne P R, Savla Jyoti, Ann Bell Martha
Department of Psychology, Virginia Tech.
Center for Gerontology; Department of Human Development and Family Science, Virginia Tech.
Infancy. 2019 Jan-Feb;24(1):43-56. doi: 10.1111/infa.12273. Epub 2018 Nov 4.
Previous work has suggested that individual differences in infant functional neuroconnectivity are a potential biomarker for later cognitive and social outcomes, but the mechanisms are unclear. This study investigated a longitudinal model of infant frontotemporal electroencephalogram (EEG) coherence predicting toddler inhibition, which then predicted childhood social responsiveness. A structural equation model showed good fit, with increased right hemisphere frontotemporal EEG coherence predicting less inhibition at age two, which in turn predicted less social responsiveness at age four. These findings support the hypothesis that infant frontotemporal connectivity is indirectly associated with later social behavior, with toddler inhibition as a potential mechanism.
先前的研究表明,婴儿功能性神经连接的个体差异是后期认知和社会结果的潜在生物标志物,但其中的机制尚不清楚。本研究调查了一个纵向模型,该模型通过婴儿额颞部脑电图(EEG)连贯性来预测幼儿的抑制能力,进而预测儿童期的社会反应能力。结构方程模型显示拟合良好,右半球额颞部EEG连贯性增加预示着两岁时抑制能力较弱,而这反过来又预示着四岁时社会反应能力较弱。这些发现支持了这样一种假设,即婴儿额颞部连接与后期社会行为存在间接关联,幼儿抑制能力是一种潜在机制。