Scientists have discovered a genetic defect that appears to cause deficit-hyperactivity disorder, more commonly known as hyperactivity. People afflicted with this disorder have trouble focusing their attention and controlling impulses, and tend to be rest-less and aggressive. The defect occurs in a gene that regulates the body's use of the thyroid hormone. This finding was made in continuing study organized by the National Institute of Diabetes and Digestive and Kidney Diseases in which 70 percent of children inheriting the gene were hyperactive while only 20 percent of the children not inheriting the gene were hyperactive. And although the researchers admit that this defective gene probably accounts for only a fraction of cases of hyperactivity, this discovery will allow doctors to spot newborn babies likely to have the disorder, and also to provide clues for its cause and treatment.
第1题
If people are exposed to red, which of the following statements does NOT happen?
A.They feel afraid.
B.They breathe faster.
C.Their blood pressure rises.
D.Their hearts beat faster.
第2题
But first, the essence: Is there something about the brain cells work to explain the effect? In 1978 the neuroscientist Vernon Mountcastle devised a model of the neural structure of the brain's gray matter. Looking like a thick band of colorful bead work, it represents the firing patterns of groups of neurons. Building on Mounteastle, Shaw and his team constructed a model of their own. On a lark, Xiaodan Leng, who was Shaw's colleague at the time, used a synthesizer to translate these patterns into music. What came out of the speakers wasn't exactly toe-tapping, but it was music. Shaw and Leng inferred that music and brain-wave activity are built on the same sort of patterns.
"Gordon is a contrarian in his thinking," says his longtime friend, Nobel Prize-winning Stanford physicist Martin Peri. "That's important. In new areas of science, such as brain research, nobody knows how to do it."
What do neuroscientists and psychologists think of Shaw's findings?' They haven't condemned it, but neither have they confirmed it. Maybe you have to take them with a grain of salt, but the experiments by Shaw and his colleagues are intriguing. In March a team led by Shaw announced that young children who had listened to the Mozart sonata and studied the piano over a period of months improved their scores by 27% on a test of ratios and proportions. The control group against which they were measured received compatible enrichment courses--minus the music. The Mozart-trained kids are now doing math three grade levels ahead of their peers, Shaw claims.
Proof of all this, of course, is necessarily elusive because it can be difficult to do a double- blind experiment of educational techniques. In a double-blind trial of an arthritis drug, neither the study subjects nor the experts evaluating them know which ones got the test treatment and which a dummy pill. How do you keep the participants from knowing it's Mozart on the CD?
In the first paragraph Gordon Shaw's concern is shown over ______.
A.the open hostility by the media towards his findings
B.his strength to keep trying out the "Mozart effect"
C.a widespread misunderstanding of his findings
D.the sharp disagreement about his discovery
第3题
(30)
A.Alcohol helps develop people's intelligence.
B.Heavy drinking is not necessarily harmful to one's health.
C.Controlled drinking helps people keep their wits as they age.
D.Drinking, even moderately, may harm one's health.
第4题
Manufacturers have discovered by trail and error that sugar sells badly in green wrappings, that blue foods are considered unpleasant, and that cosmetics (化妆品) should never be packaged in brown. These discoveries have grown into a whole discipline of color psychology that now finds application in everything from fashion to interior decoration. Some of our preferences are clearly psychological. Dark blue is the colour of the night sky therefore associated with passivity and calm, while yellow is a day color with associations and incentive (刺激). For primitive man, activity during the day meant hunting and attacking, while he soon saw a red, the color of blood and rage and the heat that came with effort. And green is associated with passive defense and self-preservation. Experiments have shown that colors, partly because of their physiological associations, also have a direct psychological effect. People exposed to bright red show an increase in heart beat, and blood pressure; red is exciting. Similar exposure to pure blue has exactly the opposite effect; it is a calming color. Because of its exciting connotations (涵义) , red was chosen as the signal [or danger, but closer analysis shows that 'a vivid yellow can produce a more basic state of alertness and alarm, so fire engines and ambulances in some advanced communities are now rushing around in bright yellow colors that stop the traffic dead.
Manufacturers found out that color affects sales ______.
A.by experience over a long period of time
B.by experimenting with different colors
C.by trying out color on blind people
D.by developing the discipline of color psychology
第5题
A.They will probably have a genetic defect.
B.They will feel dazzling.
C.They will lose their appetite.
D.They are more likely to be in positive moods.
第6题
Manufacturers have discovered by trial and error that sugar sells badly in green wrappings, that blue foods are considered unpleasant, and the cosmetics should never be packaged in brown. These discoveries have grown into a whole discipline of color psychology that now finds application in everything from fashion to interior decoration. Some of our preferences are clearly psychological. Dark blue is the color of the night sky and therefore associated with passivity and calm, while yellow is a day color with associations of energy and incentive. For primitive man, activity during the day meant hunting and attacking, while he soon saw as red, the color of blood and rage and the heat that came with effort. And green is associated with passive defence and self-preservation. Experiments have shown that colors, partly because of their physiological associations, also have a direct psychological effect. People exposed to bright red show an increase in heartbeat, and blood pressure; red is exciting. Similar exposure to pure blue has exactly the opposite effect; it is a calming color. Because of its exciting connotations, red was chosen as the signal for danger, but closer analysis shows that a vivid yellow can produce a more basic state of alertness and alarm, so fire engines and ambulances in some advanced communities are now rushing around in bright yellow colors.
Manufacturers found out that color affects sales______.
A.by experience over a long period of time
B.by experimenting with different colors
C.by trying out color on blind people
D.by developing the discipline of color psychology
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