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A、One group of pictures. B、Two groups of pictures. C、Three groups of pictures. D、Four groups of pictures. C文中说:第二天,他们让所有实验对象看了更多
A、One group of pictures. B、Two groups of pictures. C、Three groups of pictures. D、Four groups of pictures. C文中说:第二天,他们让所有实验对象看了更多
admin
2015-01-03
66
问题
Many people say they cannot start their day without first having a cup of coffee or tea. People say these drinks help them think clearly and feel more awake. This is because of caffeine, a substance found in many plants.
Caffeine helps to give a jumpstart to the nervous system. Now a new report says it may also improve long-term memory. Michael Yassa is a neurobiology professor at the University of California. He and other researchers wanted to know if caffeine could improve what they called memory consolidation. They asked a group of individuals to learn something new, and then the same people were given caffeine, the active ingredient in coffee, tea and chocolate.
He and the other researchers worked with a group of 160 people who were caffeine free. On the first day, all the subjects were shown pictures of everyday objects. They were asked to identify whether the pictures could be found inside the house or outdoors. Some of the subjects were then given a caffeine pill; the others were given a pill containing an inactive substance.
On the second day, all of the subjects were asked to look at more pictures.
Some of the images were exactly like the ones they had seen 24 hours early. But other images were different. And a third group of pictures was similar to the first group but a little different. The participants had to decide whether the images they saw were the same or different from the ones on the first day.
Professor Yassa says their answers help to show the effects of caffeine on memory. He says those who took the caffeine pills had a ten to twelve percent increase in their ability to remember the objects. The amount of caffeine the researchers used in the study was similar to one strong cup of coffee.
Q10: How many subjects were involved in Professor Yassa’s study?
Qll: What were the subjects asked to look at on the second day?
Q12: Which was one of the findings of the study?
选项
A、One group of pictures.
B、Two groups of pictures.
C、Three groups of pictures.
D、Four groups of pictures.
答案
C
解析
文中说:第二天,他们让所有实验对象看了更多的图片。这些图片有些和他们24小时前看到的完全一样,但另一些则不一样。而第三组图片和第一组图片类似但有少许不同。实验参与者必须判断他们看到的这些图片和第一天看到的是一样还是不同。
转载请注明原文地址:https://kaotiyun.com/show/fLHO777K
0
研究生英语学位课统考(GET)
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