Changing The Shape Of Your Pinnas
The pinnas are the distinctive ridges 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.
改變你耳廓的形狀
耳廓是外耳兩邊明顯的脊狀物。每個人的耳廓形狀都略微有些不同。研究人員推理表示，要想聽的更準確，大腦必須熟悉自己耳朵的形狀。
新的耳廓
大腦必須熟悉自己耳朵的形狀。通過對自愿參加試驗的人們使用塑料模具臨時改變他們耳廓的形狀，荷蘭的研究人員發(fā)現(xiàn)，這些參加試驗人們確實難以確定聲音的來源。但是，幾周之后，他們的大腦就熟悉了帶有塑料模具的新形狀耳朵，并能夠做出相應(yīng)的調(diào)整。
去掉模具后，這些試驗人員再次進行調(diào)整也比較容易。大腦似乎能夠記得真正耳朵的形狀，而不需要重新熟悉。
