One set of MRI images focused on grey matter at the brain's wrinkled surface, or cortex, where the processing of memory, emotions, speech, sight, hearing and motor control occurs.

一组磁共振成像主要关注大脑褶皱层或者脑皮层上的灰质组织，这些组织是用来处理记忆、情绪、演讲、视觉、听力和电动机操作的地方。

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They found that the cerebral cortex, the wrinkled area on the surface of the brain responsible for higher mental functions, grows in an uneven fashion.

他们发现，大脑皮层以及大脑表面上的褶皱区域负责较高级的心理功能，并且以一种不规则的形式发育。

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The distinctive, deeply wrinkled outer surface is the cerebral cortex, which consists of gray matter.

独特而深深的由沟回组成的表面是大脑皮层，它组成灰质。

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