And these are called subcortical structures because they're below the cortex.

这些结构被叫做皮层下结构，因为它们在大脑皮层的下面。

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As a rhythmic neural activity neural oscillation exists all over the nervous system, in structures as diverse as the cerebral cortex, hippocampus, subcortical nuclei and sense organs.

作为一种有节律的神经活动，神经振荡现象发生在所有的神经系统中，例如大脑皮层、海马、皮层下神经核团以及感觉器官。

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And these are called subcortical structures because they're below the cortex.

这些结构被叫做皮层下结构,因为它们在大脑皮层的下面

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