GRE

GREGRE阅读阅读真题文章

19年GRE备考之阅读真题练习及答案4

2019年02月11日 11:51:29来源:GRE考试网
导读:距离2月的GRE考试还有十天左右,同学们赶紧在考前突击一下阅读真题吧!通过做真题着重了解一下出题人的出题喜好,让自己在考试时更有把握,最后取得理想考试成绩。

>>GRE考试真题:19年GRE备考之阅读真题练习及答案4

>>GRE备考精品课程训练

By 1950, the results of attempts to relate brain processes to mental experience appeared rather discouraging. Such variations in size, shape, chemistry, conduction speed, excitation threshold, and the like -- as had been demonstrated in nerve cells -- remained negligible in significance for any possible correlation with the manifold dimensions of mental experience.

Near the turn of the century, it had been suggested by Hering that different modes of sensation, such as pain, taste, and sight, might be correlated with the discharge of specific kinds of nervous energy. However, subsequently developed methods of recording and analyzing nerve potentials failed to reveal any such qualitative diversity. It was possible to demonstrate by other methods the presence of refined structural differences among neuron types; however, proof was lacking that the quality of the impulse or its conduction was influenced by these differences, which seemed instead to influence the developmental patterning of the neural circuits. Although qualitative variance among nerve energies was never rigidly disproved, the doctrine was generally abandoned in favor of the opposing view, namely, that nerve impulses are essentially homogeneous in quality and are transmitted as "common currency" throughout the nervous system. According to this theory, it is not the quality of the sensory nerve impulses that determines the diverse conscious sensations they produce, but, rather, the different areas of the brain into which they discharge. And there is some evidence for this view. In one experiment, when an electric stimulus was applied to a given sensory field of the cerebral cortex of a conscious human subject, it produced a sensation of the appropriate modality for that particular locus, that is, a visual sensation from the visual cortex, an auditory sensation from the auditory cortex, and so on. Other experiments revealed slight variations in the size, number, arrangement, and interconnection of the nerve cells, but as far as psychoneural correlations were concerned, the obvious similarities of these sensory fields to each other seemed much more remarkable than any of the minute differences.

However, cortical locus, in itself, turned out to have little explanatory value. Studies showed that sensations as diverse as those of red, black, green, and white, or touch, cold, warmth, movement, pain, posture, and pressure apparently may arise through activation of the same cortical areas. What seemed to remain was that some kind of differential patterning effects in the central distribution of impulses counts. In short, brain theory suggested a correlation between mental experience and the activity of relatively homogeneous nerve-cell units conducting essentially homogeneous impulses through homogeneous cerebral tissue. To match the multiple dimensions of mental experience psychologists could only point to a limitless variation in the spatiotemporal patterning of nerve impulses.

It can be inferred from passage that the author's assessment of the theory that various parts of the brain regulate the perceptions yielded by sensory nerve impulses is that

A.its rationale is believable but has yet to be fully substantiated

B.it is the most accurate explanation of nerve stimulus known

C.it has been refuted by recent developments in neurology

D.there is some evidence to corroborate it but it can not completely account for the full range of mental experience

E.there exists some empirical data to prove its validity

According to the author, up until 1950, efforts to establish that brain processes and mental experience are related would most likely have been met with

A.vexation

B.irritability

C.discouragement

D.neutrality

E.hostility

1.正确的答案:D

2.正确的答案:C

上面的真题大家都会做了吗?根据答案分析自己做错的原因并做好记录,下次尽量不要犯类似错误。想要提高自己的GRE考试成绩,就要一步一个脚印的备考复习,不要急于求成。小编相信同学们通过坦途网GRE考试频道的帮助可以很好的完成考试,顺利出国留学!

温馨提示:因考试政策、内容不断变化与调整,坦途网提供的以上信息仅供参考,如有异议,请考生以权威部门公布的内容为准!

GRE培训课程免费试听

预约免费体验课

教育顾问会第一时间安排您的体验课!

课程预约立即提交
最新文章
电话咨询在线咨询资料领取