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
80
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
Theearliestcontroversiesabouttherelationshipbetweenphotographyandartcenteredonwhetherphotographer’sfidelitytoapp
Theearliestcontroversiesabouttherelationshipbetweenphotographyandartcenteredonwhetherphotographer’sfidelitytoapp
With22yearsonthejob,JackieBraceycouldbeconsideredacareeremployeeoftheInternalRevenueService.Butshedefiesan
With22yearsonthejob,JackieBraceycouldbeconsideredacareeremployeeoftheInternalRevenueService.Butshedefiesan
EarlierthisyearImetwithagroupofwomeninMatela,asmallfarmingvillageinTanzania,andwediscussedsomethingthat’s
[A]RefuseGimmicks[B]BeWaryofPriceLevels[C]SayNotoUselessThings[D]NeverPayListPrice[E]StanduptoTemptation
HuBing,oneofyourfriends,failedinthelastIELTSandisupset.Writealettertohimto1)expressyourpity,pointoutth
There’snothingsimpleaboutguncontrol,atangleoflegal,politicalandpublic-healthissuescomplicatedbyculturalpreferen
Thereoughttobelessanxietyovertheperceivedriskofmountainclimbingthan______inthepublicmindtoday.
随机试题
从所给的四个选项中选择最合适的一个填入问号处,使之呈现一定的规律性:
简要说明什么是网络安全体系中的恢复。
Ithinkitnecessary______youshouldpaymoreattentiontoyourwriting.
医师在医疗活动中对患者和社会履行义务的道德责任感和自我评价能力,谓之医师的( )。
【2008改编】某工程项目投标文件中有关资料如下:(1)分部分项工程量清单中含有甲、乙两个分项,工程量分别为4500m3和3200m3。清单报价中甲项综合单价为1240元/m3,乙项综合单价为985元/m3。(2)措施项目清单中环境保护、文明施工、安全
ABD公司正在考虑合并M公司,两家公司有关的财务比率如下表所示。两家公司均有40%所得税税率。假设没有预期的协同效应。如在股票对股票的交换中,M公司股东接受每股20元的报价,计算ABD公司兼并后的每股收益(股票对股票交换意味着一家公司的普通股与另一家
在教学中如何贯彻启发性原则?
请指出图1-12中(1)空缺处传输的是模拟信号,还是数字信号?为保证内部网络的安全保密性,在如图1-12所示的网络拓扑图中,(6)空缺处应选用什么设备?如果将该设备放置在路由器Router和设备(2)之间,整个网络的安全级别是否会提高?请用150字以内
有如下程序:#include<iostream>usingnamespacestd;classPair{intm,n;public:Pair(intj,intk):m(j),n(k){
ItiscommonlybelievedintheUnitedStatesthatschooliswherepeoplegotogetaneducation.Nevertheless,ithasbeensaid
最新回复
(
0
)