当人的小脑扁桃体受伤后，就会抑制恐惧情绪的反应，因此不能靠学习行为建立新的恐惧反射。
People with an injured amygdala have dampened emotional responses and so do not learn to fear new things through association.
不过，小脑扁桃体和中脑导水管周围灰质是大脑的两个古老原始的区域，可以追溯到亿万年前。
But the amygdala and the periaqueductal gray are ancient parts of the brain, dating back hundreds of millions of years.
脑部研究人员发现小脑扁桃体也主导了人类的恐惧反应，就好比一把上膛的枪，大脑的这个部位就如同扳机。
Brain researchers discovered that the amygdala orchestrates human fear as well. The sight of a loaded gun, for example, triggers activity in this part of the brain.
急性大脑肿胀在枕骨大孔处也经常形成小脑扁桃体疝，注意小脑髓质附近的锥体形状的小脑扁桃体。
Acute cerebral swelling can also often produce herniation of the cerebelllar tonsils into the foramen magnum. Note the cone shape of the tonsils around the medulla in this cerebellum.
方法对14例先天性小脑扁桃体下疝畸形合并脊髓空洞症患者，根据不同的病情采用相应的手术方式进行治疗。
Methods 14 patients with congenital tonsillar hernia deformity associated with syringomyelia had been treated with correspondent surgery depending on their case condition.
它们也都缺省了皮下组织的关键部分——如进行动作协调的小脑，控制情绪的扁桃体以及控制肌肉组织的脊髓。
They are also missing essential subcortical structures, -such as the cerebellum that organizes movements, the amygdala that creates emotional states and the spinal cord that runs the musculature.
它们也都缺省了皮下组织的关键部分——如进行动作协调的小脑，控制情绪的扁桃体以及控制肌肉组织的脊髓。
They are also missing essential subcortical structures, - such as the cerebellum that organizes movements, the amygdala that creates emotional states and the spinal cord that runs the musculature.
一个是应对外部环境的（小脑）扁桃体，另一个是受扁桃体控制的神经。
One was the amygdala, which reacts to threats in one's environment, and the other was circuitry that regulates the amygdala.
一个是应对外部环境的（小脑）扁桃体，另一个是受扁桃体控制的神经。
One was the amygdala, which reacts to threats in one's environment, and the other was circuitry that regulates the amygdala.
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