首页
外语
计算机
考研
公务员
职业资格
财经
工程
司法
医学
专升本
自考
实用职业技能
登录
考研
The Electromagnetic Radiation Affects Our Life Whether mobile phones can cause cancer remains an open question. But they are
The Electromagnetic Radiation Affects Our Life Whether mobile phones can cause cancer remains an open question. But they are
admin
2014-06-13
106
问题
The Electromagnetic Radiation Affects Our Life
Whether mobile phones can cause cancer remains an open question. But they are also accused by some of causing pain. A growing number of people around the world claim to be "electrosensitive" , in other words physically responsive to the electromagnetic fields that surround phones and the other electronic devices that clutter the modern world. Indeed, at least one country, Sweden, has recognized such sensitivity as a disability, and will pay for the dwellings of sufferers to be screened from the world’s electronic smog.
The problem is that, time and again, studies of those claiming to be electrosensitive show their ability to determine whether they are being exposed to a real electric field or a sham one is no better than chance. So, unless they are lying about their symptoms, the cause of those symptoms needs to be sought elsewhere.
Michael Landgrebe and Ulrich Frick, of the University of Regensburg, in Germany, think that the "elsewhere" in question is in the brain and, in a paper presented recently to the Royal Society in London, they describe an experiment which, they think, proves their point.
Dr. Landgrebe and Dr. Frick used a body scanner called a functional magnetic-resonance imager to see how people’s brains react to two different kinds of stimulus. Thirty participants, half of whom described them- selves as electrosensitive, were put in the imager and told that they would undergo a series of trials in which they would be exposed either to an active mobile phone or to a heating device called a thermode, whose temperature would be varied between the trials. The thermode was real. The mobile phone, however, was a dummy.
The type of stimulus, be it the authentic heat source or the sham electromagnetic radiation, was announced before each exposure and the volunteers were asked to rate its unpleasantness on a five-point scale. In the case of heat, the two groups’ descriptions of their experiences were comparable. So, too, was their brain activity. However, when it came to the sham-phone exposure, only the electrosensitive described any sensations—which ranged from prickling to pain. Moreover, they showed neural activity to match.
This suggests that eiectrosensitivity, rather than being a response to electromagnetic stimulus, is similar to well-known psychoso-matic disorders such as some sorts of tinnitus and chronic pain. A psychosomatic disorder is one in which the symptoms are real, but are induced by cognitive functions such as attitudes, beliefs and expectations rather than by direct external stimuli.
The paradoxical point of Dr. Landgre-be’s and Dr. Frick’s experiment is that mobile phones do indeed inflict real suffering on some unfortunate individuals. It is just that the electromagnetic radiation they emit has nothing whatsoever to do with it.
According to Dr. Landgrebe and Dr. Frick. electrosensitive______.
选项
A、is a response to electromagnetic stimulus
B、does not have real symptoms
C、is induced by cognitive functions
D、is induced by direct external stimuli
答案
C
解析
推理判断题。在倒数第二段中,兰德格里伯博士和弗里克博士得出了实验结论,即电敏感更类似于众所周知的身心机能紊乱,而不是对电磁刺激的反应,由此排除[A];文中还提到心身疾病是存在真实症状的,其起网在于态度、信仰和期望等认知功能,而不是直 接的外部刺激,由于前面已经提出电敏感更类似于身心机能紊乱,因此排除[B]和[D];由上可知正确答案为[C]。
转载请注明原文地址:https://kaotiyun.com/show/2OO4777K
0
考研英语一
相关试题推荐
SoBig.Fdamagedcomputerprogramsmainlyby______.Thetoneofthetextcanbestdescribedas______.
Inthefollowingtext,somesentenceshavebeenremoved.ForQuestions41-45,choosethemostsuitableonefromthelist(A、B、C、
Theearliestcontroversiesabouttherelationshipbetweenphotographyandartcenteredonwhetherphotographer’sfidelitytoapp
(46)Afavouritepredictionofenvironmentalismhasbittenthedust—toomanynaturalresources,ratherthantoofew,arethecaus
Investmentinthepublicsector,suchaselectricity,irrigation,publicservicesandtransport(excludingvehicles,shipsandp
EarlierthisyearImetwithagroupofwomeninMatela,asmallfarmingvillageinTanzania,andwediscussedsomethingthat’s
Oneofthesilliestthingsinourrecenthistorywastheuseof"Victorian"asatermofcontemptorabuse.Ithadbeenmadefas
There’snothingsimpleaboutguncontrol,atangleoflegal,politicalandpublic-healthissuescomplicatedbyculturalpreferen
Themostexcitingkindofeducationisalsothemostpersonal.Nothingcan【C1】______thejoyofdiscoveringforyourselfsomethin
随机试题
书证可以从不同角度进行分类,具体包括哪些?()
A.土B.金C.水D.火泻南补北法泻的是
视杆细胞、视锥细胞与双极细胞间的信息传递是由哪种递质介导的
行政处罚法规定,不再给予行政处罚的违法行为,未被发现的期限是
功效有某种共性的药物配伍应用,辅药能增强主药的疗效,这种配伍关系是
女性,35岁。便血并排不尽感半个月就诊,既往有内痔病史.首选的检查方法是
现浇混凝土用的石子,其粒径应符合的条件是()。
信用证体现了()。
报检应提供的单证为货主或其代理人报检时应填写( )文件。
基本指标法是以()的指标作为衡量商业银行整体操作风险的尺度,并以此为基础配置操作风险资本的方法。
最新回复
(
0
)