Department of Radiology, Washington University in St. Louis, St. Louis, MO 63110, USA.
Department of Psychiatry, Washington University in St. Louis, St. Louis, MO 63108, USA.
Cereb Cortex. 2021 Jan 5;31(2):1383-1394. doi: 10.1093/cercor/bhaa303.
Attention problems are common in school-age children born very preterm (VPT; < 32 weeks gestational age), but the contribution of aberrant functional brain connectivity to these problems is not known. As part of a prospective longitudinal study, brain functional connectivity (fc) was assessed alongside behavioral measures of selective, sustained, and executive attention in 58 VPT and 65 full-term (FT) born children at corrected-age 12 years. VPT children had poorer sustained, shifting, and divided attention than FT children. Within the VPT group, poorer attention scores were associated with between-network connectivity in ventral attention, visual, and subcortical networks, whereas between-network connectivity in the frontoparietal, cingulo-opercular, dorsal attention, salience and motor networks was associated with attention functioning in FT children. Network-level differences were also evident between VPT and FT children in specific attention domains. Findings contribute to our understanding of fc networks that potentially underlie typical attention development and suggest an alternative network architecture may help support attention in VPT children.
注意缺陷问题在极早早产儿(<32 周胎龄)中较为常见,但目前尚不清楚功能连接异常对这些问题的贡献。作为一项前瞻性纵向研究的一部分,对 58 名极早早产儿和 65 名足月(FT)出生儿童在矫正年龄 12 岁时的选择性注意、持续性注意和执行注意的行为测量,以及脑功能连接(fc)进行了评估。与 FT 儿童相比,极早早产儿的持续性注意、转移注意和分散注意较差。在极早早产儿组中,较差的注意力评分与腹侧注意力、视觉和皮质下网络之间的网络间连接有关,而额叶顶叶、扣带前回-脑岛、背侧注意力、突显和运动网络之间的网络间连接与 FT 儿童的注意力功能有关。在特定的注意力领域,极早早产儿和 FT 儿童之间也存在网络级差异。研究结果有助于我们理解潜在的典型注意力发展的 fc 网络,并表明替代的网络结构可能有助于支持极早早产儿的注意力。