Text 2In Don Juan Lord Byron wrote, "Sweet is revenge—especially to women." But a study released on Wednesday, supported by magnetic resonance imaging, suggests that men may be the more natural avengers.
In the study, when male subjects witnessed people they perceived as bad guys being stroke by a mild electrical shock, their M.R.I. scans lit up in primitive brain areas associated with reward. Their brains' empathy centers remained dull. Women watching the punishment, in contrast, showed no response in centers associated with pleasure. Even though they also said they did not like the bad guys, their empathy centers still quietly gloved.
The study seems to show for the first time in physical terms what many people probably assume they already know: that women are generally more empathetic than men, and that men, and that men take great pleasure in seeing revenge exacted. Men "expressed more desire for revenge and seemed to feel satisfaction when unfair people were given what they perceived as deserved physical punishment," said Dr. Tania Singer, the lead researcher, of the Wellcome Department of Imaging Neuroscience at University College London. But far from condemning the male impulse for retribution, Dr. Singer said it had an important social function: "This type of behavior. has probably been crucial in the evolution of society as the majority of people in a group are motivated to punish those who cheat on the rest."
The study is part of a growing body of research that is attempting to better understand behavior. and emotions by observing simultaneous physiological changes in the brain, a technique now attainable through imaging. "Imaging is still in its early days but we are transitioning from a descriptive to a more mechanistic type of study," said Dr. Klaas Enno Stephan, a co-author of the paper.
Dr. Singer's team was simply trying to see if the study subjects' degree of empathy correlated with how much they liked or disliked the person being punished. They had not set out to look into ** differences. To cultivate personal likes and dislikes in their 32 volunteers, they asked them to play a complex money strategy game, where both members of a pair would profit if both behaved cooperatively. The ranks of volunteers were infiltrated by actors told to play selfishly. Volunteers came quickly to "very much like" the partners who were cooperative, while disliking those who hided rewards, Dr. Stephan said. Effectively conditioned to like and dislike their game-playing partners, the 32 subjects were placed in scanners and asked to watch the various partners receive electrical shocks. On scans, both men and women seemed to feel the pain of partners they liked. But the real surprise came during scans when the subjects viewed the partners they disliked being shocked. "When women saw the shock, they still had an empathetic response, even though it was reduced," Dr. Stephan said. "The men had none at all." Furthermore, researchers found that the brain's pleasure centers lit up in males when just punishment was meted out.
The researchers cautioned that it was not clear if men and women are born with divergent responses to revenge or if their social experiences generate the responses. Dr. Singer said larger studies were needed to see if differing responses would be seen in cases involving revenge that did not involve pain. Still, she added, "This investigation would seem to indicate there is a predominant role for men in maintaining justice and issuing punishment."
第26题:Lord Byron\'s words mean ______.
A. Women are crueler than men
B. Revenge on women is sweeter
C. Women feel sweeter with revenge than men
D. Women love to revenge
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It is said in th.e passage that when the economy slides ( ).
A. men would choose working women as their marriage partners
B. more women would get married to seek financial security
C. even working women would worry about their marriages
D. more people would prefer to remain single for the time being
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D
Science can't explain the power of pets, but many studies have shown that the company of pets can help lower blood pressure (血压) and raise chances of recovering from a heart attack, reduce loneliness and spread all-round good cheer. Any owner will tall you how much joy a pet brings. For some, an animal provides more comfort than a husband/wife. A 2002 study by Karen Allen of the State University of New York measured stress (紧张) levels and blood pressure in people - half of them pet owners –while they performed 5 minutes of mental arithmetic (算术) or held a hand in ice water. Subjects completed the tasks alone, with a husband/wife, a close friend or with a pet. People with pets did it best. Those tested with their ani mal friends had smaller change in blood pressure and returned most quickly to baseline heart rates. With pets in the room, people also made fewer math mistakes than when doing in front of other companions. It seems people feel more relaxed (放松)around pets, says Allen, who thinks it may be because pets don't judge. A study reported last fall suggests that having a pet dog not only raises your spirits but may also have an effect on your eating habits. Researchers at Northwestern Memorial Hospital spent a year studying 36 fat people and their equally fat dogs on diet-and-exercise programs; a separate group of 56 people without pets were put on a diet program. On average, people lost about I1 pounds, or 5% of their body weight. Their dogs did even better, losing an average of 12 pounds, more than 15% of their body weight. Dog owners didn't lose any more weight than those without dogs but, say researchers, got more exercise overall-mostly with their dogs - and found it worth doing.
67.What does the text mainly discuss?
A.What pets bring to their owners.
B.How pets help people calm down.
C.People's opinions of keeping pets.
D.Pet's value in medical research.
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According to the text, Dr. Singer\'s attitude to male revenge impulse is ________.
A. sympathetic
B. detached
C. positive
D. negative
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usually study a certain subject in greater details at home than at school
usually do not study a certain subject at home
study the subjects only at school
study a subject more deeply at school than at home