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首页> 外文期刊>Developmental cognitive neuroscience. >Frontoparietal and default mode network connectivity varies with age and intelligence
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Frontoparietal and default mode network connectivity varies with age and intelligence

机译：前迁移和默认模式网络连接随着年龄和智力而异

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Background Anticorrelated resting state connectivity between task-positive and task-negative networks in adults supports flexible shifting between externally focused attention and internal thought. Findings suggest that children show positive correlations between task-positive (frontoparietal; FP) and task-negative (default mode; DMN) networks. FP-DMN connectivity also associates with intellectual functioning across the lifespan. We investigated whether FP-DMN connectivity in healthy children varied with age and intelligence quotient (IQ). Methods We utilized network-based statistics (NBS) to examine resting state functional connectivity between FP and DMN seeds in N = 133 7?25-year-olds (Msubage/sub = 15.80). Linear regression evaluated FP-DMN associations with IQ. Results We detected NBS subnetworks containing both within- and between-network connections that were inversely associated with age. Four FP-DMN connections showed more negative connectivity between FP (inferior frontal gyrus and precentral gyrus) and DMN regions (frontal medial cortex, precuneus, and frontal pole) among older participants. Frontal pole-precentral gyrus connectivity inversely associated with IQ. Conclusions FP-DMN connectivity was more anticorrelated at older ages, potentially indicating dynamic network segregation of these circuits from childhood to early adulthood. Youth with more mature (i.e., anticorrelated) FP-DMN connectivity demonstrated higher IQ. Our findings add to the growing body of literature examining neural network development and its association with IQ.
机译：背景技术成人任务正面和任务负网络之间的反形静态休息状态连接支持外部重点关注和内部思想之间的灵活转移。调查结果表明，儿童在任务阳性（前迁徙程序）和任务负（默认模式; DMN）网络之间显示正相关性。 FP-DMN连接还与跳过智能功能相关联。我们调查了健康儿童的FP-DMN连接是否随着年龄和智商（IQ）而变化。方法我们利用基于网络的统计（NBS）来检查在N = 133 7〜25岁的FP和DMN种子之间的休息状态功能连接（M＆年龄＆ / sub＆ = 15.80）。线性回归评估了与IQ的FP-DMN关联。结果我们检测到NBS子网，其中包含与年龄与年龄相反的网络连接内部。 FP（较差额相回rus和前列ryrus）和DMN区（正面内侧皮质，前躯和前杆）在旧的参与者之间显示出更多的FP-DMN连接。正面杆 - 前级回流连接与智商相反。结论FP-DMN连接在老年龄段中更加反向吻合，潜在地指示童年早期这些电路的动态网络隔离。青少年以更成熟（即，逆相关）FP-DMN连接展示了更高的IQ。我们的研究结果增加了越来越多的文学体系，审查神经网络发展及其与智商的关系。

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