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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  32
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.
According to Morewedge, how much you eat______.
选项 A、can only be shown through the physical cues as feeling belly full
B、is triggered by the physical appetite for the craving food
C、is influenced by psychological factors as well
D、lies more in the interest in the food than imaging the food
答案C
解析 事实细节题。本题考查食量的决定因素。定位句指出，最近研究表明心理冈素，比如适应性以及盘子的大小，能影响一个人吃得多少。故答案为C)。A)“只能通过诸如饱腹感等生理信号显示出来”，定位句前一句指出该信号只是因素之一；B)“受到生理上对食物渴望的激发”和D)“更取决于对食物的兴趣，而不是想象食物”，与原文不符，故排除。
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