We often hear people say,"I have a good memory for things like that." or "I can remember names." But do you know memory is the single most important thing and it has played a very important part?For early men,there were dangers all around them--bad w

We often hear people say,"I have a good memory for things like that." or "I can remember names." But do you know memory is the single most important thing and it has played a very important part?For early men,there were dangers all around them--bad w
We often hear people say,"I have a good memory for things like that." or "I can remember names." But do you know memory is the single most important thing and it has played a very important part?For early men,there were dangers all around them--bad weather,wild animals.The keys to keep on living lay in man's ability to remember these dangers and the ways he had dealt with them in the past.And as man learned how to deal with them,he became civilized.Surprisingly,scientists have not yet found a way to open up the brain and observe its function without destroying it.Perhaps there are two types of memory:long-term and short-term.Short-term refers to those facts that stay with us for a few seconds to a few hours.For example,when you stay at a hotel,you remember the room number and forget it as soon as you leave.Long-term memory,on the other hand,means you remember things for a long period of time.If you spend your honeymoon in a special hotel,it's likely that you'll remember your stay quite clearly.Scientists also believe that a short-term memory can become a long-term memory if a lot of chemical and physical changes take place in the part of the brain.Although the human brain weighs three pounds,it contains 30 billion nerve cells acting like a computer.When those changes strengthen the links in certain nerve cells,a thought becomes a part of the long-term memory.

We often hear people say,"I have a good memory for things like that." or "I can remember names." But do you know memory is the single most important thing and it has played a very important part?For early men,there were dangers all around them--bad w
我们经常听到人们说,“我有一个好的记忆这样的东西.”或“我能记住的名字.“但是你知道记忆是最重要的,它有一个非常重要的角色?早期的人有危险,周围的一切——坏天气,野生动物.保持对人的记住这些危险和他如何处理他们过去的生活奠定了关键能力.当人类学会如何对付他们,他成为文明.令人惊讶的是,科学家们还没有找到一种方法来打开大脑和不破坏它,观察它的功能.也许有两种类型：短期和长期记忆.短期是指这些事实我们呆几秒钟到几小时.举例来说,当你呆在一个酒店,记住你的房间号码和忘记它,一旦你离开.长期记忆,另一方面,意味着你记住了很长一段时间的事情.如果你用你的蜜月在一个特殊的酒店,很有可能你会记得你很清楚.科学家还认为,短期记忆可以如果大量的物理化学变化发生在大脑的一部分,成为一个长期的记忆.虽然人类的大脑重三磅,它包含30000000000个神经细胞,像一个计算机.当这些变化加强在某些神经细胞的联系,一个想成为长期记忆的一部分.