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VOA慢速英语--Three Books That Explore the Human Brain

时间:2018-09-17 23:15:11

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SHIRLEY GRIFFITH: I’m Shirley Griffith.

STEVE EMBER: And I’m Steve Ember with EXPLORATIONS in VOA Special English. Today we discuss three books that tell about ways the human brain works. One book considers the power of the brain in controlling why some people care about how someone else feels and why others do not. Another book describes how the limitations of the brain can affect our lives. The third book is about how the brain develops in a baby.

(MUSIC)

SHIRLEY GRIFFITH: Psychology1 professor and researcher Simon Baron2-Cohen wrote a book called “The Science of Evil: On Empathy and the Origins of Cruelty.” His book asks why it is that human beings are capable of evil behavior towards each other. He says the word “evil” is less helpful in offering a scientific explanation. Instead, he chooses to use the word empathy. We spoke3 with Professor Baron-Cohen about his book using Skype.

Three authors write about the brain and its development.

SIMON BARON-COHEN: “If we are trying to do science, we should move away from the concept of evil as an explanation of cruelty and instead use the framework of empathy. Because empathy is something you can measure scientifically. And you can measure it at the psychological level using questionnaires or psychological tests. You can also measure it using the new brain scanning technology, MRI. In that respect, you can also move forward and move deeper.”

SHIRLEY GRIFFITH: Simon Baron-Cohen defines empathy as the ability of a person to identify what someone else is thinking or feeling and to react with an appropriate emotion. He says people who do evil acts are showing a lack of empathy. This can be temporary, or part of a more permanent condition.

STEVE EMBER: Professor Baron-Cohen and his research team developed a way to measure individual differences in empathy. They found that most people have average levels of empathy, but some people have extremely low or high levels.

SIMON BARON-COHEN: “In my book I call this the empathy bell curve. And part of what I’m exploring in the book is what determines where an individual scores on this empathy bell curve. Why do some people score much lower or much higher than other people.”

STEVE EMBER: Empathy is linked to physical areas of the brain. Medical imaging technology has identified at least ten parts of the brain that are active when people empathize. And, these areas are less active in people with little or no empathy.

Why would someone lack empathy? Professor Baron-Cohen offers evidence suggesting that zero empathy can be the result of environmental, social and genetic4 conditions.

The question of empathy is a meaningful one in the field of psychology. Lack of empathy has an influence on borderline personality disorder5, narcissism6 and psychopathy and the developmental disorder autism.

SHIRLEY GRIFFITH: Professor Baron-Cohen says borderline personality disorder, narcissism and psychopathy are described as personality disorders7. But he says psychiatric experts could instead define them as empathy disorders. This could open up new ways of studying and treating these disorders. Recognizing the importance of empathy could also change the way legal and psychiatric experts consider and treat people who commit acts of cruelty. But this recognition goes far beyond psychiatry8. The writer says empathy is one of the most valuable resources in our world.

SIMON BARON COHEN: “One thing that I think may have been neglected in the past is just recognizing that empathy also has the power to resolve conflicts between people. So if we think about conflicts, it could be a conflict between two people, like two neighbors. It could be a conflict between two nations. For example, nations that go to war.”

SHIRLEY GRIFFITH: That was Professor Baron-Cohen speaking to us with Skype. He says it is important to recognize the value of empathy in areas like politics, education and law, as well as psychiatry.

(MUSIC)

STEVE EMBER: Dean Buonomano is a brain specialist at the University of California, Los Angeles. He works in the Departments of Neurobiology and Psychology and the Brain Research Institute at UCLA.

His book “Brain Bugs9” explores how the human brain is one of the best pieces of technology ever created. But at the same time, he shows how a normal, healthy brain is also built with weaknesses and limitations. Professor Buonomano borrows the word “bug” from computer programming to describe the errors which the brain can make.

SHIRLEY GRIFFITH: One reason for these ‘bugs’ is evolution. Human brains developed over hundreds of thousands of years to be skilled at finding food, shelter and protection from threats. Yet evolution did not fully11 prepare the brain for the many demands of the modern world.

So, our brains are very good at doing some things. But our brains sometimes fail us when we attempt to remember long lists of information, or compute10 large numbers in our head. Our brains are also not always very good at making long-term decisions.

STEVE EMBER: Professor Buonomano discusses how and why the brain can play tricks on us in decisions involving memory, time and judging threats. Sometimes these mistakes can have serious effects, like a victim who wrongly identifies her attacker to police.

At other times, the mistakes are harmless. For example, one study found that most people choose to receive one hundred dollars immediately over receiving one hundred twenty dollars in a month. While waiting could lead to more money, most people would want the payment now. Dean Buonomano says that, for human ancestors, the immediate12 need for food was more important than the future need. So, our brains often want an immediate action instead of having to wait for a reward.

Professor Buonomano explains the causes of many kinds of brain bugs and gives examples of their everyday results. And, he offers ideas for how understanding our brain bugs can become a tool for improving our mental powers.

(MUSIC)

SHIRLEY GRIFFITH: John Medina is a developmental molecular13 biologist in Seattle, Washington. His book is called “Brain Rules for Baby: How to Raise a Smart and Happy Child from Zero to Five.” The book gives scientific information about how a brain develops from its creation to the age of five years.

John Medina

Professor Medina says parenting is all about brain development. He says what science tells us about the brain gives parents good information for raising smart, happy children.

STEVE EMBER: Many parents ask the professor what they can do to improve brain function before birth. A mother’s actions have a big effect on how her baby develops. He says one of the most important things is for the mother to avoid severe levels of stress.

JOHN MEDINA: “The maternal14 stress that is felt, that stress hormone15 -- one of them is called cortisol -- can actually leach16 into the womb. And, at certain stages of development can actually go into the brain of the baby and rewire the brain of that baby in such fashion that it now becomes stressed.”

STEVE EMBER: John Medina says it is important for a pregnant woman to gain the right amount of weight and eat healthful foods so that her baby will develop normally.

SHIRLEY GRIFFITH: His book also discusses the science behind a child’s intelligence after birth. He says one of the best things parents can do for their baby has to do with their own relationship. Studies show marriage conflict increases greatly after a baby is born. This can result from new pressures on the parents and lack of sleep. Professor Medina says what conflict the baby witnesses can be important.

JOHN MEDINA: “If you make up in public, by that I mean in front of your child, with the same frequency that you fight in front of your child, the child’s nervous system develops beautifully. It doesn’t matter how much fighting you guys do. In fact, I would argue that if kids could actually see real live conflict going on that is both frank but also resolvable, it teaches the child to begin to have better conflict resolution.”

SHIRLEY GRIFFITH: Parents can do other things to help support the mental development of their baby. These include breast feeding and talking and playing with the child. [John Medina says it is wise to avoid television at an early age and not to pressure children to learn.]

STEVE EMBER: As for happiness, Professor Medina says it is important for parents to help children develop language skills to express their emotions.

JOHN MEDINA: “What a parent does when their child’s emotions run hot profoundly influences how that child’s emotional regulation occurs decades later, no kidding.”

STEVE EMBER: He also says parents can help create a healthy emotional life for small children by being watchful17 and responsive to their needs. He adds that parents need to recognize and not judge the child’s emotions.

Finally, John Medina tells about research that shows the single best predictor of happiness is having friends. He says parents should help children learn to control and understand their emotions because this leads to deeper friendships.

(MUSIC)

SHIRLEY GRIFFITH: This program was written and produced by Dana Demange. I’m Shirley Griffith.

STEVE EMBER: And I’m Steve Ember. Our programs are online with transcripts18 and MP3s at voaspecialenglish.com. And you can find us at Facebook and YouTube at VOA Learning English. Join us again next week for EXPLORATIONS in VOA Special English.


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点击收听单词发音收听单词发音  

1 psychology 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。
2 baron XdSyp     
n.男爵;(商业界等)巨头,大王
参考例句:
  • Henry Ford was an automobile baron.亨利·福特是一位汽车业巨头。
  • The baron lived in a strong castle.男爵住在一座坚固的城堡中。
3 spoke XryyC     
n.(车轮的)辐条;轮辐;破坏某人的计划;阻挠某人的行动 v.讲,谈(speak的过去式);说;演说;从某种观点来说
参考例句:
  • They sourced the spoke nuts from our company.他们的轮辐螺帽是从我们公司获得的。
  • The spokes of a wheel are the bars that connect the outer ring to the centre.辐条是轮子上连接外圈与中心的条棒。
4 genetic PgIxp     
adj.遗传的,遗传学的
参考例句:
  • It's very difficult to treat genetic diseases.遗传性疾病治疗起来很困难。
  • Each daughter cell can receive a full complement of the genetic information.每个子细胞可以收到遗传信息的一个完全补偿物。
5 disorder Et1x4     
n.紊乱,混乱;骚动,骚乱;疾病,失调
参考例句:
  • When returning back,he discovered the room to be in disorder.回家后,他发现屋子里乱七八糟。
  • It contained a vast number of letters in great disorder.里面七零八落地装着许多信件。
6 narcissism 9FSxQ     
n.自我陶醉,自恋
参考例句:
  • Those who suffer from narcissism become self-absorbed.自恋的人会变得自私。
  • The collective narcissism of the Kerouac circle is ultimately boring.凯鲁亚克和他周围人物的集体自我陶醉欲最终使人厌烦不已。
7 disorders 6e49dcafe3638183c823d3aa5b12b010     
n.混乱( disorder的名词复数 );凌乱;骚乱;(身心、机能)失调
参考例句:
  • Reports of anorexia and other eating disorders are on the increase. 据报告,厌食症和其他饮食方面的功能紊乱发生率正在不断增长。 来自《简明英汉词典》
  • The announcement led to violent civil disorders. 这项宣布引起剧烈的骚乱。 来自《简明英汉词典》
8 psychiatry g0Jze     
n.精神病学,精神病疗法
参考例句:
  • The study appeared in the Amercian science Journal of Psychiatry.这个研究发表在美国精神病学的杂志上。
  • A physician is someone who specializes in psychiatry.精神病专家是专门从事精神病治疗的人。
9 bugs e3255bae220613022d67e26d2e4fa689     
adj.疯狂的,发疯的n.窃听器( bug的名词复数 );病菌;虫子;[计算机](制作软件程序所产生的意料不到的)错误
参考例句:
  • All programs have bugs and need endless refinement. 所有的程序都有漏洞,都需要不断改进。 来自《简明英汉词典》
  • The sacks of rice were swarming with bugs. 一袋袋的米里长满了虫子。 来自《简明英汉词典》
10 compute 7XMyQ     
v./n.计算,估计
参考例句:
  • I compute my losses at 500 dollars.我估计我的损失有五百元。
  • The losses caused by the floods were beyond compute.洪水造成的损失难以估量。
11 fully Gfuzd     
adv.完全地,全部地,彻底地;充分地
参考例句:
  • The doctor asked me to breathe in,then to breathe out fully.医生让我先吸气,然后全部呼出。
  • They soon became fully integrated into the local community.他们很快就完全融入了当地人的圈子。
12 immediate aapxh     
adj.立即的;直接的,最接近的;紧靠的
参考例句:
  • His immediate neighbours felt it their duty to call.他的近邻认为他们有责任去拜访。
  • We declared ourselves for the immediate convocation of the meeting.我们主张立即召开这个会议。
13 molecular mE9xh     
adj.分子的;克分子的
参考例句:
  • The research will provide direct insight into molecular mechanisms.这项研究将使人能够直接地了解分子的机理。
  • For the pressure to become zero, molecular bombardment must cease.当压强趋近于零时,分子的碰撞就停止了。
14 maternal 57Azi     
adj.母亲的,母亲般的,母系的,母方的
参考例句:
  • He is my maternal uncle.他是我舅舅。
  • The sight of the hopeless little boy aroused her maternal instincts.那个绝望的小男孩的模样唤起了她的母性。
15 hormone uyky3     
n.荷尔蒙,激素,内分泌
参考例句:
  • Hormone implants are used as growth boosters.激素植入物被用作生长辅助剂。
  • This hormone interacts closely with other hormones in the body.这种荷尔蒙与体內其他荷尔蒙紧密地相互作用。
16 leach uxCyN     
v.分离,过滤掉;n.过滤;过滤器
参考例句:
  • Liquid water can leach soluble materials from the interface.液态水能够从界面溶解出可溶性物质。
  • They believe that the humic materials are leached from decaying plant materials.他们认为腐植物料是从腐烂的植物体浸沥而来。
17 watchful tH9yX     
adj.注意的,警惕的
参考例句:
  • The children played under the watchful eye of their father.孩子们在父亲的小心照看下玩耍。
  • It is important that health organizations remain watchful.卫生组织保持警惕是极为重要的。
18 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

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