SSS 2009-01-30
时间：2018-12-24 作者：英语课 分类：Scientific American(一)月
This is Scientific American's 60-Second Science. I'm Karen Hopkin. This will just take a minute.
You probably remember exactly what you were doing when you first heard the news on 9/11. That’s because the brain has ways to file information so that things that happen at the same time are forever linked in our minds. Now a study published in the journal 《Neuron》says that newborn cells in a structure called the hippocampus help us remember concurrent 1 events.
The hippocampus is part of the brain that allows us to lay down new memories. And about ten years ago, scientists were surprised to find that new neurons pop up in this region every day, even in adult animals and people. But what do these new cells do?
Scientists turned to computer modeling to help them find out. They put in what they knew about the behavior of these new cells, which start out like puppies 2 that get totally excited over every little thing, and eventually mature into more discerning 3 members of neuronal society.
And they found that the hyperactivity of these excitable young cells, which react with great gusto to everything that goes on, could help stamp memories with a sort of “time code” that indicates which things happened together. So if you still remember what you were eating when you dumped your loser boyfriend, you can thank your newborn neurons.
Thanks for the minute for Scientific American's 60-Second Science. I'm Karen Hopkin.
- You can't attend two concurrent events!你不能同时参加两项活动！
- The twins had concurrent birthday. 双胞胎生日在同一天。
- a litter of puppies 一窝小狗
- The bitch bore six puppies. 母狗生了六只小狗。 来自《简明英汉词典》
- She has a discerning palate. 她的味觉很敏锐。
- Anyone with a discerning eye can easily see. 明眼人一看便知。