英语听力文摘 English Digest 687 改变耳郭的形状会怎样？

Changing The Shape Of Your Pinnas

The pinnas are the distinctive¹ ridges² in your outer ear. Everyone has slight differences in the shape of pinnas. Researchers have theorized that the brain has to learn the shape of its own ears in order to hear correctly.

New Pinnas

So the brain should have to learn the shape of its own ears. By temporarily altering the shape of the pinnas with plastic molds, researchers in the Netherlands found that indeed, people with new pinnas had a hard time locating sound sources. After a few weeks of wearing the molds, however, their brains learned the new shapes of their ears and adjusted accordingly.

After removing the molds, volunteers had no trouble readjusting. It seems that the brain remembered the shape of its real ears and didn’t have to relearn it.

改变耳郭的形状会怎样

耳廓是你外耳中与众不同的脊。每个人的耳廓形状略有不同。研究人员推测，大脑必须学习自己耳朵的形状，才能正确地听到声音。

所以大脑应该学会自己耳朵的形状。荷兰的研究人员通过用塑料模具暂时改变耳廓的形状，发现事实上，拥有新耳廓的人很难找到音源。然而，戴上这些模具几周后，他们的大脑学会了耳朵的新形状，并相应地进行了调整。

在移除模具后，志愿者们很容易重新调整。大脑似乎记住了它真正耳朵的形状，不需要重新学习。

1 distinctive   

adj.特别的，有特色的，与众不同的

参考例句：

• She has a very distinctive way of walking.她走路的样子与别人很不相同。
• This bird has several distinctive features.这个鸟具有几种突出的特征。

2 ridges   

n.脊( ridge的名词复数 )；山脊；脊状突起；大气层的)高压脊

参考例句：

• The path winds along mountain ridges. 峰回路转。
• Perhaps that was the deepest truth in Ridges's nature. 在里奇斯的思想上，这大概可以算是天经地义第一条了。