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在早产后的早期产后期,海马活动的较大增加与18个月后更好的认知和运动结果有关

Anika Guha¹, Sharon K Hunter¹, Kristina T Legget^1,2

¹Department of Psychiatry, University of Colorado Anschutz Medical Campus, Aurora, Colorado, USA.

Developmental neurobiology

|October 31, 2025

概括

在早产婴儿中,海马活动的早期增加预测了更好的认知和运动技能. 动态的大脑变化,而不是静态措施,是早产婴儿神经发育结果的关键指标.

科学领域:

神经科学是一个神经科学.
发育神经科学的发展神经科学.
儿科神经学儿科神经学

背景情况:

神经元刺激和抑制 (E/I) 之间的平衡对大脑发育至关重要.
在E / I平衡中的偏差与神经发育障碍有关.
早期的产后海马活动被假设为稳定神经电路,但这在人类中仍然未经检查.

研究的目的:

研究早期海马活动和妊娠年龄对早产婴儿神经发育结果的影响.
为了确定海马功能中的动态变化是否比基线测量更为敏感的指标,在这个人群中.

主要方法:

58名早产婴儿的纵向静止状态功能磁共振成像 (fMRI) 数据.
使用低频波动幅度 (ALFF) 评估海马活动在两个早期的产后时间点.
早期海马活动和妊娠年龄与18个月后认知和运动功能的相关性.

主要成果:

婴儿早期海马活动增加预测了18个月后增强的认知和运动功能.
出生时更高的妊娠年龄与出生后早期海马活动的更大增加有关.
在基线海马活动和后来的结果之间没有发现显著的关联,这突显了动态变化的重要性.

结论:

早期海马功能和妊娠年龄的变化是早产婴儿神经发育问题的关键风险因素.
大脑活动的动态变化,而不是静态措施,是早产后神经发育轨迹的敏感指标.
这些发现强调需要监测早产人口早期大脑发育动态的必要性.

关键词:

认知认知认知激发性/抑制性的平衡.海马活动活动海马活动神经发育的神经发育过早出生的婴儿早产.休息状态的功能磁共振成像 (fMRI)

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