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  3. According to new research, imagining eating a specific food reduces your interest in that food, so you eat less of it. This reac

According to new research, imagining eating a specific food reduces your interest in that food, so you eat less of it. This reac

admin2012-07-11  49
问题     According to new research, imagining eating a specific food reduces your interest in that food, so you eat less of it. This reaction to repeated exposure to food is called habituation (习惯化) ,and it’s well known to occur while eating. "A tenth bite of chocolate, for example, is desired less than the first bite," the study authors note.
    But the new research is the first to show that habituation can occur solely via the power of the mind. " A lot of people who diet try to avoid thinking about stimuli they desire. This research suggests that may not be the best strategy," said study leader Carey Morewedge, a psychologist at Carnegie Mellon University in Pittsburgh.
    " If you just think about the food itself—how it tastes, smells, and looks—that will increase your appetite," Morewedge said. "This research suggests that it might be better,actually,to force yourself to repeatedly think about tasting, swallowing, and chewing the food you desire to reduce your cravings. " What’s more,the technique works with only the food you’ve imagined,he added. For instance,imagining eating chocolate wouldn’t prevent you from gorging on cheese.
    Morewedge and colleagues conducted five experiments, all of which revealed that people who repeatedly imagined eating chocolate or cheese would eat less of that food than people who pictured eating the food fewer times,eating a different food,or not eating at all. In one experiment,for instance,51 subjects were divided into 3 groups. One group was asked to imagine inserting 30 quarters into a laundry machine—which requires the same motor skills as eating the chocolate M    The study is part of a new area of research looking into the triggers that make us overeat, Morewedge noted. Physical, digestive cues—that full-belly feeling—are only parts of what tells us that we’re finished a meal. Eecent research suggests that psychological factors,such as habituation or the size of a plate, also influence how much a person eats. Such experiments are important as obesity rates climb—in the United States, for instance, nearly 30 percent of adults were obese in 2009, according to the U. S. Centers for Disease Control and Prevention The new study, Morewedge said, may lead to new behavioral techniques for people looking to control overeating or other addictive behaviors such as smoking.
What is the finding of the five experiments conducted by Morewedge and his colleagues?
选项 A、People can reduce the diet by imaging eating the different food.
B、Picturing you are eating a delicious food would trigger your desire for food.
C、Eating more chocolate and cheese can prevent you from eating other food.
D、Imaging eating the desirous food can prevent you from eating too much.
答案D
解析 主旨大意题。本文考查莫尔韦杰和他的同事所做的五个实验的结论。定位句指出五项实验都证明了不停地想象自己想吃的食物的人吃得相对来说更少。故答案为D)。A)“人们可以通过想象吃其他食物来减少饮食”、B)“想象你正在吃美味的食物能激发对食物的渴望”和C)“吃更多的巧克力和奶酪能阻止你吃其他食物”三项论述均与原文相反，故排除。
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