首页
登录
职称英语
Our memories are fantastically complex, but anyone who has ever used a perso
Our memories are fantastically complex, but anyone who has ever used a perso
游客
2023-07-29
40
管理
问题
Our memories are fantastically complex, but anyone who has ever used a personal computer has a ready-made model with which to compare them. The computer model is not perfect, however. For a start, the largest mainframe (主计算机)in the world can not compete with the potential brain power of human beings. Packed into even the thickest of human skulls are some 1,000 billion cells, or neurons, and each one can connect with thousands of its neighbors. Each connection represents a ’bit’ of information and, in theory, we can carry more bits than there are atoms in the known universe.
There are two quite distinct types of memory-short-term and long-term. Our short-term memories are those which we hold on to for just as long as we need them. The vast majority of our everyday thoughts, sights and impressions are registered in the short-term memory only. They take the form of patterns, or linked pathways, created by circulating currents of electrical energy. So long as the current is buzzing around its little route, the memory that it represents stays in the mind. But once the current dies down, the memory, too, starts to fade. While short-term memories consist of active electrical circuits, long-term memories are quite literally etched (铭刻) into our brains. It seems that if the pathways taken by a particular electrical current are well-trodden, or if the current passing along them is strong enough, the cells along the way change, so that the route or pattern is permanently marked.
Events which have strong meaning for us are particularly likely to be upgraded into the long-term memory. Part of the reason is probably that we go over and over these memories, keeping the pathways stimulated and the electrical current high. It’s also likely that certain chemicals come into play, too. When we are excited, very happy, or frightened, our glands pump out chemicals such as adrenaline. One theory has it that some of these chemicals stimulate the neurons to alter their structure and forge permanent connections with each other.
It follows, then, that a memory formed when we are ’up’ is more likely to stick than one registered when we are down. Several experiments seem to bear this out. In one, a group of students was first shown an exciting film, then given a list of words to memorize. Another group was shown a miserable film, then given the same learning task. Next day the group who watched the happy film could remember 20% more words than the other group. [br] What do experiments show about our memories?
选项
A、We are more likely to remember things we do than things we see.
B、People always remember pleasant things rather than unpleasant ones.
C、Our ability to remember something depends on our feelings when it happens.
D、We tend to have better long-term memories than short-term memories.
答案
C
解析
文章最后一段大意:根据相关实验得知,当人们情绪处于兴奋状态时,记忆就得以形成,反之,情绪低落时,记忆不易形成。这可以从下面一句中找到:It follows,then,that a memory formed when we are ’Up’ is more likely to stick than one registered when we are down。因此,C项“记忆取决于事件发生时我们的情绪如何”为正确答案。
转载请注明原文地址:https://tihaiku.com/zcyy/2879038.html
相关试题推荐
[originaltext]Thirtyyearsago,anyoneblaminglonelinessforphysicalilln
[originaltext]Thirtyyearsago,anyoneblaminglonelinessforphysicalilln
Hardlyanyonepaysmuchattentiontotheair.Itis【B1】______,andwenever
Hardlyanyonepaysmuchattentiontotheair.Itis【B1】______,andwenever
Hardlyanyonepaysmuchattentiontotheair.Itis【B1】______,andwenever
Hardlyanyonepaysmuchattentiontotheair.Itis【B1】______,andwenever
Hardlyanyonepaysmuchattentiontotheair.Itis【B1】______,andwenever
Ourmemoriesarefantasticallycomplex,butanyonewhohaseverusedaperso
Ourmemoriesarefantasticallycomplex,butanyonewhohaseverusedaperso
Ourmemoriesarefantasticallycomplex,butanyonewhohaseverusedaperso
随机试题
Inrecentyears,therehasbeenanincreasingawarenessoftheinadequacies
【B1】[br]【B15】A、lateB、pastC、presentD、futureC仔细观察可发现这四个分句是按照孩子的情况由简单到复杂的顺序来排
患者男,52岁,鼻咽癌放疗术后1年,因多个牙冷热刺激痛就诊,查体:缺失,残根,颈
以下属于跨期套利的是()。A、在不同交易所,同时买入、卖出相关商品,相同交割月
在目标控制过程中,采用强化合同管理方法进行纠偏属于()。A、管理措施 B、组织
脏躁的临床特点是A.多见于青中年女性 B.间歇发作,不发时可如常人 C.发病
淋巴结结核 A.凝固性坏死B.液化性坏死 C.溶解坏死D.脂肪坏死
(2021年真题)甲省丙市的企业向乙省丁市转移固体废物进行处置,属于该企业应当向
政府质量监督机构在监督检查过程中发现门窗工程质量不合格,并查实是承包商原因造成,
《消防法》规定,机关、团体、企业、事业等单位应当对建筑消防设施每()至少进行1
最新回复
(
0
)