By contrast, activity in the hippocampus, a region of the medial temporal lobe known to be crucial for memory formation, was found to be reduced reduced.

相比之下，海马的活动一降再降，我们知道海马处于内侧颞叶，对记忆的形成至关重要。

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It has long been suggested that the hippocampus, a brain structure critical for memory formation, plays a critical role in the acquisition of conceptual knowledge.

过去人们一直相信，海马体——大脑中负责记忆信息的部分，在概念的形成过程中起着关键性的作用。

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Essentially, the new neurons may aid formation of new memories by keeping the hippocampus from filling up with old ones.

本来，新的神经元就可能是通过填补海马体中的旧记忆来形成新记忆的。

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With time, neuroscience research uncovered two parts of the brain that evidence neurogenesis: the hippocampus, associated with memory formation, and the olfactory bulb, associated with the sense of smell.

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The researchers concentrated on two areas of the brain, the hippocampus and the frontal cortex, areas where plaque formation occurs in humans.

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