12．Our eyes may be playing tricks on us．New research shows that sometimes people physically see what they want to see．Cornell University social psychologist David Dunning carried out experiments to test whether wishful thinking can actually affect what we see．
"It's well proved from what is experienced in everyday life，and from the laboratory as well，that people think what they want to think，"he says．"We're taking this a step further．We're asking if desires and fears can actually affect what people physically see．"
Dunning and his assistants told volunteers that a computer game would show them either a letter or number to decide whether they would drink orange juice or fruit syrup（果子露）．
As they wrote in the Journal of Personality and Social Psychology，the computer would flash an ambiguous picture，which could be seen as the letter"B"or the number"13"．Volunteers who were told that a letter would get them orange juice most often reported seeing"B"．Those who were told that a number would get them orange juice most often saw"13"．
The researchers also used a hidden camera to track（追踪）volunteers'eye movements，particularly the first eye movement．"We don't control them，"Dunning says，"and they don't even know that we are watching them，so it honestly mirrors what a person is seeing．"
"This research suggests that the brain is doing a lot of work between the eye and the conscious awareness to affect what we think，"Dunning concludes．"Before we even see the world，our brain has decided to keep what we want to see and avoid what we don't want to see．"
67．The passage is mainly aboutB．
A．the eye movements of some volunteers
B．new findings on what may affect what we see
C．a social psychologist named Dunning and his assistants
D．a paper in the Journal of Personality and Social Psychology
68．In Dunning's experiment，if told a"13"can get you orange juice，which of the following most possibly can you see？C
69．The underlined word"ambiguous"most probably meansB．
A．different B．unclear C．important D．ugly
70．Which of the following statements is TRUE according to Dunning's findings？A
A．The brain can influence what people see．
B．The brain forgets what it wants to see．
C．The eyes can't see without the brain．
D．The brain does not relate to the eyes．
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