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How many of a random string of numbers—say 1593657292759381380473—do you think you will be able to immediately remember? Some sc
How many of a random string of numbers—say 1593657292759381380473—do you think you will be able to immediately remember? Some sc
admin
2023-02-22
67
问题
How many of a random string of numbers—say 1593657292759381380473—do you think you will be able to immediately remember? Some scientists say that you should be able to remember about seven of them.【B1】__________________
For the random numbers, you could for example remember it as one, five, nine, three. In this case,
each individual number counts as a unit.【B2】________________
So, when scientists say that you can keep a certain number of things in working memory, these individual things can be of varying size, complexity, and importance. Either way, working memory is small but really important.
What is working memory? Working memory is your brain’s dashboard. It’s the place you can temporarily put information while your brain decides whether or not it is worth the effort to put it some-where more permanent, like your long-term memory.
As it turns out, different senses have different dashboard capacity.【B3】__________________Because of this, it is important to look at different types of working memory separately.
To make matters even more complicated, each and every person has a different ability to keep things in working memory.【B4】_________________
But, why are some people able to keep more in their working memory than others? New research by a team of scientists at Simon Fraser University has shed light on why some people may be able to keep more things on their brain dashboards than others. The research team, led by psychology professor John McDonald and doctoral student John Gaspar, learned about differences in visual memory by recording people’s brain waves and tracking how they paid attention.
Attention and memory are inextricably linked. By paying attention to an object, you increase its representation in the brain and make it easier to remember. But making something easier to remember is only one aspect of attention. Paying attention also means ignoring all of the distracting information in our world.【B5】___________________According to John Gaspar, "This indicates that it might not be about how much relevant information you can remember but instead it might be about how good are you at ignoring irrelevant information."
This fit well with the scientists’ previous research, which had already demonstrated that the human brain has distinct processes for locking attention onto relevant information and for suppressing irrelevant information.
[A] However, these differences are not just about how much information people cram into their heads at once, but they’re also about how much people can keep out,
[B] These individual differences in working memory capacity are important because they have been shown to strongly predict things like intelligence; more working memory capacity generally equals more intelligence.
[C] More precisely, since a paper from the 1950s, called "The magical number seven, plus or minus two", some have suggested that the capacity of our working memory is typically somewhere between five and nine things—units or chunks of information.
[D] This means that how much you can remember seems to depend on whether, for example, someone says something to you or shows something to you.
[E] There are three separate stages of memory—sensory memory, short-term memory, and long-term memory—and the stage model of memory is often used to explain the basic structure and function of memory.
[F] However, you will be able to remember more of the number if you parse it differently; fifteen, nine-ty-three, sixty-five, seventy-two. Both of these count as four units, the information is just combined differently.
[G] And this is where people differ significantly. In the study, people who had low working memory capacities were unable to suppress important, distracting information.
【B4】
选项
答案
B
解析
空格前说每个人存储信息的能力都不一样。空格后是第六段,讲述造成这种差异的原因。由此看出,空格应该填的是与工作记忆的个人差异有关的内容。B的内容正与此相关,其中的These individual differences指代空格前说的each and every person has a different ability…。此外,空格前指出工作记忆容量会有个体差异.B则顺着话尾讲述这些个体差异的重要性,二者构成顺承关系,语义连贯,逻辑合理。故确定B为答案。
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考研英语一
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