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In 1987, there were over 1.5 million violent crimes reported in the United States. Most of this violence comes from aggressive p
In 1987, there were over 1.5 million violent crimes reported in the United States. Most of this violence comes from aggressive p
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2012-01-19
89
问题
In 1987, there were over 1.5 million violent crimes reported in the United States. Most of this violence comes from aggressive people. Psychologists are trying to understand the cause of aggressive behavior that results in injury or death.
Psychologists say that extreme aggression runs in families. In other words, if your parents are very aggressive, there is a strong possibility that you will be too. A team of researchers recently studied a large group of children over a 22-year period. The researchers discovered that the aggressive children grow up to become aggressive adults. Furthermore, the males are likely to have criminal records before the age of 30. This pattern continues as the aggressive adults in turn severely punish their own children.
When a child’s aggressive behavior becomes part of his or her character, it is not easy to change. Therefore, it is important to try to prevent it before adolescence, many psychologists believe that watching violence on television may cause children to become aggressive. One solution may be that parents forbid their children to watch violent television programs. Aggressive behavior in very young children should be immediately stopped by the parents before it becomes more severe.
Other researchers have found that men are more aggressive than women. Although this seems to be socially acceptable, there is also a biological reason for this difference. Very aggressive people have a low amount of a chemical serotinin in the brain. This is true for both men and women. In general, though, men have lower level of serotinin.
There are different patterns of aggressive behavior. One type is chronic aggression. Another type of aggressive behavior is impulsive. That is, the violent actions are sudden and unpredictable. Researchers have discovered that some people who are impulsively aggressive can be helped by a medication called lithium (锂). Lithium seems to stabilize the serotonin level in the brain. Scientists have tested this drug with laboratory animals. Lithium effectively reduced their aggressive behavior.
In general, psychologists agree that aggressive behavior should be treated in childhood before the behavior becomes permanent. However, some children will grow up to become violent adults and may hurt themselves or others. Lithium and other medications may be an effective treatment for them.
All the following contribute to people’s aggressive behavior EXCEPT ______.
选项
A、their parent’s punishment
B、watching violence on television
C、a low amount of serotonin in their brain
D、less contact with other people
答案
D
解析
转载请注明原文地址:https://kaotiyun.com/show/1jxd777K
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公共英语(PETS)
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