时差N小时 你听到过颜色吗?(下)

Scientists know very little about what causes synesthesia.

科学家对于“共感现象”的起因知之甚少。

While it appears to be hereditary¹, the actual neurological processes that account for the phenomenon remain a mystery.

虽然这种疾病看似遗传，但实际上如何解释这种现象的神经发生过程依然成谜。

Although most scientists agree that the hippocampus, an area of the brain responsible for memory, plays a role, exactly how the hippocampus might cause synesthesia is not clear.

尽管多数科学家们都认为大脑控制记忆的区域——“海马体”是导致此现象出现的原因，但它如何影响并引发“共感”症状尚不清楚。

Otherwise, scientific knowledge about synesthesia is limited to several interesting observations.

另外，目前对“共同感觉”的科学认识仅基于几种有趣的现象观察。

For example, synesthetic perceptions² remain consistent³ over time.

比如，这种“共同感觉”的感知会随着时间保持一致。

In other words, if a person with synesthesia sees blue and green flashes when he hears a C-sharp, he will always see those same colors upon hearing that note.

也就是说，如果一个人听到C大调时看到蓝色与绿色闪过，那么只要他再听到这一声音，眼前会浮现蓝色和绿色。

1 hereditary   

adj.遗传的，遗传性的，可继承的，世袭的

参考例句：

• The Queen of England is a hereditary ruler.英国女王是世袭的统治者。
• In men,hair loss is hereditary.男性脱发属于遗传。

2 perceptions   

感知（能力）( perception的名词复数 )； 觉察（力）； 认识； 观念

参考例句：

• Her perceptions and intuitions about human nature were fascinating. 她对人性的理解和感知引人入胜。
• There was no inside to Whitman's perceptions. 惠特曼的直觉里没有内涵。

3 consistent   

adj.坚持的，一贯的，一致的，符合的

参考例句：

• He has been a consistent friend to the Chinese people.他是中国人民始终如一的朋友。
• His action is always consistent with his words.他始终言行一致。