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焦躁的人并非神经过敏
文章来源:未知 文章作者:enread 发布时间:2011-12-21 05:01 字体: [ ] 
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anxious people have long been classified as "hypersensitive" -- they're thought to be more fearful and feel threatened more easily than their counterparts. but new research from tel aviv university shows that the anxious may not be hypersensitive at all -- in fact, they may not be sensitive enough. as part of a study on how the brain processes fear in anxious and non-anxious individuals, tahl frenkel, a ph.d. candidate in tau's school of psychological sciences and the adler center for research in child developmental and psychopathology, working with her 1 prof. yair bar-haim, measured brain activity as study participants were shown images designed to induce fear and anxiety. using an eeg to measure electrical activity caused by the neuronal activity that represents deep processing of these 2, the researchers discovered that the anxious group was actually less 3 by the images than the non-anxious group.

the results of the study were recently published in biological 4.

measuring fear in the 5

surprisingly, anxious study participants weren't shown to be as 6 sensitive to subtle(微妙的) changes in their environment as less fearful individuals, frenkel explains. she theorizes that anxious people could have a 7(赤字,不足) in their threat 8 9 -- necessary for effective decision-making and fear regulation -- leading to an under-reaction to subtle threatening stimuli. non-anxious individuals seem to have a subconscious "early warning system," allowing them to prepare for evolving threats. 10, anxious people are "surprised" by fearful stimuli that non-anxious individuals have already 11 noticed, 12, and evaluated.

to get a more accurate picture of both behavioral and 13 reactions to fear-inducing stimuli, the researchers drew participants from a group of 240 undergraduate students at the university. using the speilberger's state-trait anxiety 14 trait scale, they identified the 10 percent "most anxious" individuals and 10 percent "least anxious" individuals to participate in the final study.

in the first part of their study, the researchers measured behavioral responses to fear-inducing stimuli. a set of pictures, featuring a person looking progressively more fearful on a scale of 1-100, was shown to the participants. when shown the sequence of pictures, anxious people were quicker to respond to the fear in the subject's face. they identified a face as being "fearful" at a rating of only 32, while non-anxious people did not describe the same face as fearful until it reached a rating of 39.

but the eeg data tells a different story, frenkel says. the researchers also measured the participants' brain waves by eeg while they were being shown the photographs and discovered that non-anxious individuals completed an in-depth processing of fear-inducing stimuli that informed their behavioral response, whereas anxious individuals did not.



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1 rrzwv     
n.监督人,管理人,检查员,督学,主管,导师
参考例句:
  • between you and me i think that new supervisor is a twit.我们私下说,我认为新来的主管人是一个傻瓜。
  • he said i was too flighty to be a good supervisor.他说我太轻浮不能成为一名好的管理员。
2 lubwm     
n.刺激(物)
参考例句:
  • it is necessary to curtail or alter normally coexisting stimuli.必需消除或改变正常时并存的刺激。
  • my sweat glands also respond to emotional stimuli.我的汗腺对情绪刺激也能产生反应。
3 rhrz78     
a.刺激的
参考例句:
  • the exhibition has stimulated interest in her work. 展览增进了人们对她作品的兴趣。
  • the award has stimulated her into working still harder. 奖金促使她更加努力地工作。
4 u0wze     
n.心理,心理学,心理状态
参考例句:
  • she has a background in child psychology.她受过儿童心理学的教育。
  • he studied philosophy and psychology at cambridge.他在剑桥大学学习哲学和心理学。
5 oqryw     
n./adj.潜意识(的),下意识(的)
参考例句:
  • nail biting is often a subconscious reaction to tension.咬指甲通常是紧张时的下意识反映。
  • my answer seemed to come from the subconscious.我的回答似乎出自下意识。
6 qnfx3     
ad.生理上,在生理学上
参考例句:
  • therefore, the liver and gallbladder cannot be completely separated physiologically and pathologically. 因此,肝胆在生理和病理上不能完全分离。
  • therefore, the liver and gallbladder are closely related physiologically and pathologically. 因此,肝胆在生理和病理上紧密联系。
7 tmazu     
n.亏空,亏损;赤字,逆差
参考例句:
  • the directors have reported a deficit of 2.5 million dollars.董事们报告赤字为250万美元。
  • we have a great deficit this year.我们今年有很大亏损。
8 onfxd     
n.估价,评价;赋值
参考例句:
  • i attempted an honest evaluation of my own life.我试图如实地评价我自己的一生。
  • the new scheme is still under evaluation.新方案还在评估阶段。
9 f7b11037f2050959293aafb493b7653c     
n.能力( capability的名词复数 );可能;容量;[复数]潜在能力
参考例句:
  • he was somewhat pompous and had a high opinion of his own capabilities. 他有点自大,自视甚高。 来自辞典例句
  • some programmers use tabs to break complex product capabilities into smaller chunks. 一些程序员认为,标签可以将复杂的功能分为每个窗格一组简单的功能。 来自about face 3交互设计精髓
10 nntxw     
adv.本质上,实质上,基本上
参考例句:
  • really great men are essentially modest.真正的伟人大都很谦虚。
  • she is an essentially selfish person.她本质上是个自私自利的人。
11 whizfd     
ad.下意识地,潜意识地
参考例句:
  • in choosing a partner we are subconsciously assessing their evolutionary fitness to be a mother of children or father provider and protector. 在选择伴侣的时候,我们会在潜意识里衡量对方将来是否会是称职的母亲或者父亲,是否会是合格的一家之主。
  • lao yang thought as he subconsciously tightened his grasp on the rifle. 他下意识地攥紧枪把想。 来自汉英文学 - 散文英译
12 483f1acae53789fbee273a644fdcda80     
v.分析( analyze的过去式和过去分词 );分解;解释;对…进行心理分析
参考例句:
  • the doctors analyzed the blood sample for anemia. 医生们分析了贫血的血样。 来自《简明英汉词典》
  • the young man did not analyze the process of his captivation and enrapturement, for love to him was a mystery and could not be analyzed. 这年轻人没有分析自己蛊惑著迷的过程,因为对他来说,爱是个不可分析的迷。 来自《简明英汉词典》
13 dnxzft     
adj.神经的,神经系统的
参考例句:
  • the neural network can preferably solve the non- linear problem.利用神经网络建模可以较好地解决非线性问题。
  • the information transmission in neural system depends on neurotransmitters.信息传递的神经途径有赖于神经递质。
14 04xx7     
n.详细目录,存货清单
参考例句:
  • some stores inventory their stock once a week.有些商店每周清点存货一次。
  • we will need to call on our supplier to get more inventory.我们必须请供应商送来更多存货。
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