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Can you believe your eyes? A recent experiment suggests that the answer to that question may depend on your age.
Martin Doherty, a psychologist at the University of Stirling in Scotland, led the team of scientists．In this experiment, Doherty and his team tested the perception（观察力） of some people, using pictures of some orange circles．The researchers showed the same pictures to two groups of people．The first group included 151 children aged 4 to 10, and the second group included 24 adults aged 18 to 25.
The first group of pictures showed two circles alone on a white background．One of the circles was larger than the other, and these people were asked to identify the larger one．Four-year-olds identified the correct circle 79 percent of the time．Adults identified the correct circle 95 percent of the time.
Next, both groups were shown a picture where the orange circles, again of different sizes, were surrounded by gray circles．Here’s where the trick lies in．In some of the pictures, the smaller orange circle was surrounded by even smaller gray circles — making the orange circle appear larger than the other orange circle, which was the real larger one．And the larger orange circle was surrounded by even bigger gray circles — so it appeared to be smaller than the real smaller orange circle．
When young children aged 4 to 6 looked at these tricky pictures, they weren’t fooled — they were still able to find the bigger circle with roughly the same accuracy as before．Older children and adults, on the other hand, did not do as well．Older children often identified the smaller circle as the larger one, and adults got it wrong most of the time．
As children get older, Doherty said, their brains may develop the ability to identify visual context．In other words, they will begin to process the whole picture at once: the tricky gray circles, as well as the orange circle in the middle．As a result, they’re more likely to fall for this kind of visual trick.
1．Doherty and his team of scientists did an experiment to evaluate .
A．children’s and adults’ eye-sight
B．the influence of people’s age
C．children’s and adults’ brains
D．people’s ability to see accurately
2．When asked to find the larger circle, .
A．children at 6 got it wrong 79 % of the time with no gray ones around
B．only adults over 18 got it right 95% of the time with gray ones around
C．children at 4 got it right about 79 % of the time with gray ones around
D．adults got it right most of the time with gray ones around
3．Visual context may work when children get older than .
A．4 B．6 C．10 D．18
4．Why are younger children not fooled?
A．Because they are smarter than older children and adults.
B．Because their brain can hardly notice related things together.
C．Because people’s eyes become weaker as they grow older.
D．Because older people are influenced by their experience.
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Do you know how our brains work?
During the 19th century scientists found that when 1 parts of the brain of a man were 2 , he would lose the 3 to do certain things. And so people 4 that each of the brain does a different 5 . But modern people research has found out that this is not so, for it is not easy to say 6 what each part of the brain does.
In the 7 fifty years there has been a great increase in the amount of research 8 on the brain. Chemists and biologists have 9 that the way the brain works is not so 10 as people in general may think. 11 tell us that 100, 000 chemical changes take place in the brain every, second. Some recent research also 12 that we can remember everything that happens to us. We may not be able to recall the things we've heard and seen, 13 it is all kept there in the storehouse of the human being.
Earlier scientists thought the power of one's brain got weaker and weaker as one grew 14 . But it is now thought that it is not 15 . As long as the brain. is 16 plenty of exercise it keeps its ability. It has been 17 that an old person who has always been active in the mind has a 18 mind than a young person who has only done 19 work without using much of his brain. It is now 20 that the more work our brains work, the more work they are able to do.
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Can you believe your eyes? A recent experiment suggests that the answer to that question may depend on your age.
Martin Doherty, a psychologist at the University of Stirling in Scotland, led the team of scientists. In this experiment, Doherty and his team tested the perception(观察力) of some people, using pictures of some orange circles. The researchers showed the same pictures to two groups of people. The first group included 151 children aged 4 to 10, and the second group included 24 adults aged 18 to 25.
The first group of pictures showed two circles alone on a white background. One of the circles was larger than the other, and these people were asked to identify the larger one. Four-year-olds identified the correct circle 79 percent of the time. Adults identified the correct circle 95 percent of the time.
Next, both groups were shown a picture where the orange circles, again of different sizes, were surrounded by gray circles. Here’s where the trick lies in. In some of the pictures, the smaller orange circle was surrounded by even smaller gray circles — making the orange circle appear larger than the other orange circle, which was the real larger one. And the larger orange circle was surrounded by even bigger gray circles — so it appeared to be smaller than the real smaller orange circle.
When young children aged 4 to 6 looked at these tricky pictures, they weren’t fooled — they were still able to find the bigger circle with roughly the same accuracy as before. Older children and adults, on the other hand, did not do as well. Older children often identified the smaller circle as the larger one, and adults got it wrong most of the time.
As children get older, Doherty said, their brains may develop the ability to identify visual context. In other words, they will begin to process the whole picture at once: the tricky gray circles, as well as the orange circle in the middle. As a result, they’re more likely to fall for this kind of visual trick.
Doherty and his team of scientists did an experiment to evaluate .
A．children’s and adults’ eye-sight
B．the influence of people’s age
C．children’s and adults’ brains
D．people’s ability to see accurately
When asked to find the larger circle, .
A．children at 6 got it wrong 79 % of the time with no gray ones around
B．only adults over 18 got it right 95% of the time with gray ones around
C．children at 4 got it right about 79 % of the time with gray ones around
D．adults got it right most of the time with gray ones around
Visual context may work when children get older than .
A．4 B．6 C．10 D．18
Why are younger children not fooled?
A．Because they are smarter than older children and adults.
B．Because their brain can hardly notice related things together.
C．Because people’s eyes become weaker as they grow older.
D．Because older people are influenced by their experience.
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