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狗主我又来了。。第三篇阅读考古求确认~~
【考古】(未确认)
V1
有一篇是讲人类记忆和睡觉的睡眠与记忆科学家们一直认为睡眠可以帮助提高记忆,但Now一个K人(好像是)提出睡眠是让人们forget而不是remember,
然后第二段讲一些科学事实,基于这些事实科学家们人文睡眠提高记忆,但是K通过这些推断出了另一个理论,认为睡眠不能提高记忆,第三段是作者对K的理论的态度,认为他make sense,并说出了作者自己为什么觉得k的理论make sense。Unorthodox非正统的,最后一段说的是作者对这个宣称睡眠是为了帮助人们忘记东西的这个科学家的赤裸裸的赞扬!他说这个科学家的看法貌似非正统,无厘头,却十分make sense,因为人脑是有限的,如果不是因为大家睡觉的时候忘了很多东西脑子就装不下了
V2(疑似原文,待确认)
Our need for sleep is somehow tied to our ability to remember. Slumber is known to improve recall in creatures from fruit flies to humans, and the reigning theory among neuroscientists has been that the waves of brain activity during deep sleep reactivate neurons that were triggered during the day, strengthening neuronal connections and cementing them into solid memories. Now Giulio Tononi, a neuroscientist at the University of Wisconsin, says sleep scientists have it all wrong: We don't sleep to remember, we sleep to forget.
About 1,000 times a night, billions of neurons undergo a synchronous one-second burst of non-REM electrical activity. The longer a person has been sleep-deprived, the bigger the initial burst. Throughout the night the bursts become progressively smaller, until they finally disappear completely just before waking. Most researchers interpret this activity as the brain slowly reinforcing synaptic connections that already exist, but Tononi noticed that after each wave, the brain goes completely silent, which never happens when we're awake.
As we sleep, says Tononi, the brain isn't building but rather downscaling, and these silences between waves play a key role. "Going up and down, up and down, basically all the neurons fire and then all are silent—it's a wonderful way for the brain to tell the synapses to get weaker," Tononi explains. He suspects the progressive weakening allows only the strong connections to survive.
The theory is unorthodox, but it does make a certain amount of sense. Without the ability to pare away unneeded information as we sleep, our brains would face a serious energy shortage as well as a space crunch: Stronger synapses are typically bigger, and real estate in the brain is precious. By proportionally weakening synapses, the brain ensures that they retain the same strength relative to each other. So when we wake up each morning, all of our synapses are weaker, or have vanished. With them, our smallest memories from each day may be lost forever. Our need for sleep is somehow tied to our ability to remember.
【问题】
Q1:主旨题?
Q2:哪一个能从K的理论里推导出来是对的?选了睡眠没有加强人的记忆。
Q3:哪一个能加强K的理论?
选项都有点关系,感觉涉及触突和神经元的都不是正确选项,建议用排除法。
最后选了假如睡眠不能减少记忆,那么人的脑容量就有问题了。。。(渣翻译,请大家自己理解)
多推断题~
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