剑桥雅思13Test2阅读Passage2阅读文章题目The positive and negative effects of the chemical known as the ‘love hormone’,即催产素被称为“爱情荷尔蒙”的化学物质的积极和消极影响,下面来看剑桥雅思13Test2阅读Passage2原文译文题目及答案解析内容。

  Oxytocin

  The positive and negative effects of the chemical known as the ‘love hormone’

  A Oxytocin is a chemical, a hormone produced in the pituitary gland in the brain. It was through various studies focusing on animals that scientists first became aware of the influence of oxytocin. They discovered that it helps reinforce the bonds between prairie voles, which mate for life, and triggers the motherly behaviour that sheep show towards their newborn lambs. It is also released by women in childbirth, strengthening the attachment between mother and baby. Few chemicals have as positive a reputation as oxytocin, which is sometimes referred to as the ‘love hormone’. One sniff of it can, it is claimed, make a person more trusting, empathetic, generous and cooperative It is time, however, to revise this wholly optimistic view. A new wave of studies has shown that its effects vary greatly depending on the person and the circumstances, and it can impact on our social interactions for worse as well as for better.

  B Oxytocin’s role in human behaviour first emerged in 2005. In a groundbreaking experiment, Markus Heinrichs and his colleagues at the University of Freiburg, Germany, asked volunteers to do an activity in which they could invest money with an anonymous person who was not guaranteed to be honest. The team found that participants who had sniffed oxytocin via a nasal spray beforehand invested more money than those who received a placebo instead. The study was the start of research into the effects of oxytocin on human interactions. ‘For eight years, it was quite a lonesome field,’ Heinrichs recalls. ‘Now, everyone is interested.’ These follow-up studies have shown that after a sniff of the hormone, people become more charitable, better at reading emotions on others’ faces and at communicating constructively in arguments. Together, the results fuelled the view that oxytocin universally enhanced the positive aspects of our social nature.

  C Then, after a few years, contrasting findings began to emerge. Simone Shamay-Tsoory at the University of Haifa, Israel, found that when volunteers played a competitive game, those who inhaled the hormone showed more pleasure when they beat other players, and felt more envy when others won. What’s more, administering oxytocin also has sharply contrasting outcomes depending on a person’s disposition. Jennifer Bartz from Mount Sinai School of Medicine, New York, found that it improves people’s ability to read emotions, but only if they are not very socially adept to begin with. Her research also shows that oxytocin in fact reduces cooperation in subjects who are particularly anxious or sensitive to rejection.

  D Another discovery is that oxytocin’s effects vary depending on who we are interacting with. Studies conducted by Carolyn DeClerck of the University of Antwerp, Belgium, revealed that people who had received a dose of oxytocin actually became less cooperative when dealing with complete strangers. Meanwhile, Carsten De Dreu at the University of Amsterdam in the Netherlands discovered that volunteers given oxytocin showed favouritism: Dutch men became quicker to associate positive words with Dutch names than with foreign ones, for example. According to De Dreu, oxytocin drives people to care for those in their social circles and defend them from outside dangers. So, it appears that oxytocin strengthens biases, rather than promoting general goodwill, as was previously thought.

  E There were signs of these subtleties from the start. Bartz has recently shown that in almost half of the existing research results, oxytocin influenced only certain individuals or in certain circumstances. Where once researchers took no notice of such findings, now a more nuanced understanding of oxytocin’s effects is propelling investigations down new lines. To Bartz, the key to understanding what the hormone does lies in pinpointing its core function rather than in cataloguing its seemingly endless effects. There are several hypotheses which are not mutually exclusive. Oxytocin could help to reduce anxiety and fear. Or it could simply motivate people to seek out social connections. She believes that oxytocin acts as a chemical spotlight that shines on social clues - a shift in posture, a flicker of the eyes, a dip in the voice - making people more attuned to their social environment. This would explain why it makes us more likely to look others in the eye and improves our ability to identify emotions. But it could also make things worse for people who are overly sensitive or prone to interpreting social cues in the worst light.

  F Perhaps we should not be surprised that the oxytocin story has become more perplexing. The hormone is found in everything from octopuses to sheep, and its evolutionary roots stretch back half a billion years. ‘It’s a very simple and ancient molecule that has been co-opted for many different functions,’ says Sue Carter at the University of Illinois, Chicago, USA. ‘It affects primitive parts of the brain like the amygdala, so it’s going to have many effects on just about everything.’ Bartz agrees. ‘Oxytocin probably does some very basic things, but once you add our higher-order thinking and social situations, these basic processes could manifest in different ways depending on individual differences and context.’

  译文:

  催产素

  被称为“爱情荷尔蒙”的化学物质的积极和消极影响

  A 催产素是一种化学物质,一种由脑垂体分泌的荷尔蒙。科学家们最开始注意到催产素的影响是通过在动物身上所做的各种各样的研究。他们发现,它帮助加强草原鼠配偶之间的亲密联系——这种动物一生只有一个配偶,它也能激发母羊对待初生小羊羔的母性行为。女性在生产过程中也会释放出催产素,加强了母亲与婴儿之间的情感联系。很少有化学物质能够像催产素一样拥有正面的名声,它有时候被称作“爱情荷尔蒙”。据称,只要吸进一丁点,就能使一个人变得更加愿意信任别人、更有同情心、更慷慨并且愿意合作。然而,是时候修正些全部都是乐观的观念了。新一波研究显示:它的效果会根据不同的人和场合而有着极大的不同,并且它对我们社会交往行为所产生的影响可好可坏。

  ......

  Questions 14-17

  Reading Passage 2 has six paragraphs, A-F.

  Which paragraph contains the following information?

  Write the correct letter, A-F, in boxes 14-17 on your answer sheet.

  NB You may use any letter more than once.

  14 reference to research showing the beneficial effects of oxytocin on people

  15 reasons why the effects of oxytocin are complex

  16 mention of a period in which oxytocin attracted little scientific attention

  17 reference to people ignoring certain aspects of their research data

  Questions 18-20

  Look at the following research findings (Questions 18-20) and the list of researchers below.

  Match each research finding with the correct researcher, A-F.

  Write the correct letter, A-F, in boxes 18-20 on your answer sheet.

  18 People are more trusting when affected by oxytocin,

  19 Oxytocin increases people’s feelings of jealousy.

  20 The effect of oxytocin varies from one type of person to another.

  List of Researchers

  A Markus Heinrichs

  B Simone Shamay-Tsoory

  C Jennifer Bartz

  D Carolyn DeClerck

  E Carsten De Dreu

  F Sue Carter

  Questions 21-26

  Complete the summary below.

  Choose ONE WORD ONLY from the passage for each answer.

  Write your answers in boxes 21-26 on your answer sheet.

  Oxytocin research

  The earliest findings about oxytocin and bonding came from research involving 21 __________. It was also discovered that humans produce oxytocin during 22 __________. An experiment in 2005 in which participants were given either oxytocin or a 23 __________, reinforced the belief that the hormone had a positive effect.

  However, later research suggests that this is not always the case. A study at the University of Haifa where participants took part in a 24 __________ revealed the negative emotions which oxytocin can trigger. A study at the University of Antwerp showed people’s lack of willingness to help 25 __________ while under the influence of oxytocin. Meanwhile, research at the University of Amsterdam revealed that people who have been given oxytocin consider 26 __________ that are familiar to them in their own country to have more positive associations than those from other cultures.


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