Memories for events that happen early in life are fragile—they are forgotten more quickly than expected based on typical adult rates of forgetting. Although numerous factors contribute to this phenomenon, data show that one major source of change is the protracted development of neural structures related to memory. Recent empirical studies in early childhood reveal that the development of specific subdivisions of the hippocampus (i.e., the dentate gyrus) is related directly to variations in memory. Yet, the hippocampus is only one region within a larger network supporting memory. Data from young children have also shown that activation of cortical regions during memory tasks and the functional connectivity between the hippocampus and cortex relate to memory during this period. Taken together, these results suggest that protracted neural development of the hippocampus, cortex, and connections between these regions contribute to the fragility of memories early in life and may ultimately contribute to childhood amnesia.

中文翻译：

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支持对早期儿童情景记忆发展的神经贡献的经验证据：对儿童健忘症的影响

生命早期发生的事件的记忆很脆弱-根据成年人的典型遗忘率，它们被遗忘的速度比预期的要快。尽管造成这种现象的因素很多，但数据表明，变化的主要来源之一是与记忆有关的神经结构的长期发育。儿童早期的最新经验研究表明，海马体特定细分（即齿状回）的发展与记忆的变化直接相关。然而，海马只是支持记忆的更大网络中的一个区域。来自幼儿的数据还表明，记忆任务期间皮质区域的激活以及海马体与皮质之间的功能连接与这段时期的记忆有关。在一起