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The brain is a seemingly endless library, whose shelves house our most precious memories as well as our lifetime’s knowledge. Bu
The brain is a seemingly endless library, whose shelves house our most precious memories as well as our lifetime’s knowledge. Bu
admin
2020-01-09
19
问题
The brain is a seemingly endless library, whose shelves house our most precious memories as well as our lifetime’s knowledge. But is there a point where it reaches capacity?
The answer is no, because brains are more sophisticated than that. Instead of just crowding in, old information is sometimes pushed out of the brain for new memories to form.
Previous behavioural studies have shown that learning new information can lead to forgetting. But in a new study, researchers demonstrated for the first time how this effect occurs in the brain.
In daily life, forgetting actually has clear advantages. Imagine, for instance, that you lost your bank card. The new card you receive will come with a new personal identification number (PIN). Each time you remember the new PIN, you gradually forget the old one. This process improves access to relevant information, without old memories interfering.
And most of us may sometimes feel the frustration of having old memories interfere with new, relevant memories. Consider trying to remember where you parked your car in the same car park you were at a week earlier. This type of memory (where you are trying to remember new, but similar information) is particularly vulnerable to interference.
When we acquire new information, the brain automatically tries to incorporate (合并) it within existing information by forming associations. And when we retrieve (检索) information, both the desired and associated but irrelevant information is recalled.
The majority of previous research has focused on how we learn and remember new information. But current studies are beginning to place greater emphasis on the conditions under which we forget, as its importance begins to be more appreciated.
A very small number of people are able to remember almost every detail of their life. While it may sound like an advantage to many, people with this rare condition often find their unusual ability burdensome.
In a sense, forgetting is our brain’s way of sorting memories, so the most relevant memories are ready for retrieval. Normal forgetting may even be a safety mechanism to ensure our brain doesn’t become too full.
What do people find about their rare ability to remember every detail of their life?
选项
A、It adds to the burden of their memory.
B、It makes their life more complicated.
C、It contributes to their success in life.
D、It constitutes a rare object of envy.
答案
A
解析
细节题。第八段最后一句指出,虽然这听起来对大多数人来说像是一个优势,但有这种罕见情况的人往往会发现他们的这种不寻常的能力令人难以承受。A项中的burden对应原文第八段最后一句话中的burdensome,A项与原文相符,故答案为A。B、C、D项原文均未提及,故排除。
转载请注明原文地址:https://kaotiyun.com/show/rCp7777K
0
大学英语四级
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