英语 英语 日语 日语 韩语 韩语 法语 法语 德语 德语 西班牙语 西班牙语 意大利语 意大利语 阿拉伯语 阿拉伯语 葡萄牙语 葡萄牙语 越南语 越南语 俄语 俄语 芬兰语 芬兰语 泰语 泰语 泰语 丹麦语 泰语 对外汉语

VOA慢速英语 2007 0207a

时间:2007-07-07 03:20来源:互联网 提供网友:standley   字体: [ ]
    (单词翻译:双击或拖选)
This is the VOA Special English Health Report.


Researchers find stroke victims who easily quit smoking after suffering injury to a part of the brain.

Chemical dependency can result from many things: alcohol, caffeine, illegal drugs like cocaine1, legal drugs like pain killers2. But one of the most difficult dependencies to break is also one of the most common: smoking. The body becomes addicted3 to the nicotine4 in tobacco. Now, researchers may have found an important link in the brain to smoking addiction5.

Scientists at the University of Southern California and the University of Iowa studied thirty-two former smokers6. All of the men and women had brain injuries as a result of strokes.

Half of them reported that they were able to give up cigarettes quickly and easily after they suffered the brain damage. Magnetic resonance7 imaging showed that twelve of those sixteen patients had suffered damage to a part of the brain called the insula.

The insula is found near the ear. Experts believe it somehow brings together emotional experience and sensory8 information with some activities like breathing. Experiments have suggested that the insula has a lot to do with the experience of pain and some basic emotions like fear, anger and happiness.

The patients in the study had all smoked at least five cigarettes a day for two years. One of the sixteen who reported that they quit smoking immediately and without effort had smoked as many as forty a day.

Antoine Bechara was one of the leaders of the study. He and co-author Hanna Damasio work at the Brain and Creativity Institute, a new center at the University of Southern California in Los Angeles. The other authors of the study were Nasir Naqvi and David Rudrauf of the University of Iowa.

Antoine Bechara says the insula is not the only area of the brain involved in cigarette addiction. He says many parts of the brain are connected with substance dependency. But he says damage to the insula does seem to destroy a necessary link in the smoking addiction.

The patients did not lose all dependencies -- they still had a normal desire for food, for example. This may suggest that the insula is more responsible for dependencies that come from a learned pleasure, like smoking. And the researchers say their discovery may point to a weak spot in smoking addiction.

They say it could lead to better ways to help people stop smoking -- but much more research is needed. The findings appeared in Science magazine.

And that's the VOA Special English Health Report, written by Caty Weaver9. You can find transcripts10 of our reports and audio files at www.unsv.com. I'm Barbara Klein.


点击收听单词发音收听单词发音  

1 cocaine VbYy4     
n.可卡因,古柯碱(用作局部麻醉剂)
参考例句:
  • That young man is a cocaine addict.那个年轻人吸食可卡因成瘾。
  • Don't have cocaine abusively.不可滥服古柯碱。
2 killers c1a8ff788475e2c3424ec8d3f91dd856     
凶手( killer的名词复数 ); 消灭…者; 致命物; 极难的事
参考例句:
  • He remained steadfast in his determination to bring the killers to justice. 他要将杀人凶手绳之以法的决心一直没有动摇。
  • They were professional killers who did in John. 杀死约翰的这些人是职业杀手。
3 addicted dzizmY     
adj.沉溺于....的,对...上瘾的
参考例句:
  • He was addicted to heroin at the age of 17.他17岁的时候对海洛因上了瘾。
  • She's become addicted to love stories.她迷上了爱情小说。
4 nicotine QGoxJ     
n.(化)尼古丁,烟碱
参考例句:
  • Many smokers who are chemically addicted to nicotine cannot cut down easily.许多有尼古丁瘾的抽烟人不容易把烟戒掉。
  • Many smokers who are chemically addicted to nicotine cannot cut down easily.许多有尼古丁瘾的抽烟人不容易把烟戒掉。
5 addiction JyEzS     
n.上瘾入迷,嗜好
参考例句:
  • He stole money from his parents to feed his addiction.他从父母那儿偷钱以满足自己的嗜好。
  • Areas of drug dealing are hellholes of addiction,poverty and murder.贩卖毒品的地区往往是吸毒上瘾、贫困和发生谋杀的地方。
6 smokers d3e72c6ca3bac844ba5aa381bd66edba     
吸烟者( smoker的名词复数 )
参考例句:
  • Many smokers who are chemically addicted to nicotine cannot cut down easily. 许多有尼古丁瘾的抽烟人不容易把烟戒掉。
  • Chain smokers don't care about the dangers of smoking. 烟鬼似乎不在乎吸烟带来的种种危害。
7 resonance hBazC     
n.洪亮;共鸣;共振
参考例句:
  • Playing the piano sets up resonance in those glass ornaments.一弹钢琴那些玻璃饰物就会产生共振。
  • The areas under the two resonance envelopes are unequal.两个共振峰下面的面积是不相等的。
8 sensory Azlwe     
adj.知觉的,感觉的,知觉器官的
参考例句:
  • Human powers of sensory discrimination are limited.人类感官分辨能力有限。
  • The sensory system may undergo long-term adaptation in alien environments.感觉系统对陌生的环境可能经过长时期才能适应。
9 weaver LgWwd     
n.织布工;编织者
参考例句:
  • She was a fast weaver and the cloth was very good.她织布织得很快,而且布的质量很好。
  • The eager weaver did not notice my confusion.热心的纺织工人没有注意到我的狼狈相。
10 transcripts 525c0b10bb61e5ddfdd47d7faa92db26     
n.抄本( transcript的名词复数 );转写本;文字本;副本
参考例句:
  • Like mRNA, both tRNA and rRNA are transcripts of chromosomal DNA. tRNA及rRNA同mRNA一样,都是染色体DNA的转录产物。 来自辞典例句
  • You can't take the transfer students'exam without your transcripts. 没有成绩证明书,你就不能参加转学考试。 来自辞典例句
本文本内容来源于互联网抓取和网友提交,仅供参考,部分栏目没有内容,如果您有更合适的内容,欢迎点击提交分享给大家。
------分隔线----------------------------
TAG标签:   VOA  慢速英语  VOA  慢速英语
顶一下
(0)
0%
踩一下
(0)
0%
最新评论 查看所有评论
发表评论 查看所有评论
请自觉遵守互联网相关的政策法规,严禁发布色情、暴力、反动的言论。
评价:
表情:
验证码:
听力搜索
推荐频道
论坛新贴