The researchers controlled for differences in vision, general object recognition and memory.

研究人员通过控制实验，测试他们在视觉、总体物体识别和记忆上的差别。

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The subjects who'd had little exposure to the Internet before the study showed activity in brain regions involved in vision, language and reading.

那些在此之前较少有上网经历的志愿者，他们大脑中负责视觉、语言和阅读的相关区域，呈现出显著的活跃现象。

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But so far, improvement in vision has persisted as long as two years after a single treatment without evidence of significant adverse side effects.

但到目前为止，在经过一次性治疗后，病人视觉的改善最长已经维持了两年时间，没有证据显示出现了明显的不良副作用。

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Some eye care professionals say all that screen time has led to an increase in what they call computer vision syndrome.

VOA: special.2011.08.01

And we get such a dramatic vision of that in the next episode that follows, the episode of the kitten.

下面关于小猫的那里,有个令人难以忘怀的场景。

耶鲁公开课 - 1945年后的美国小说课程节选

If our vision is truly realized MIT and there are open course not just in MIT but on every campus.

如果达到了这一目标,不仅在,其他学校也有开放课程。

麻省理工公开课 - 媒体、教育、市场课程节选

Symptoms often include headaches that worsen over time, hearing loss, changes in vision and memory loss.

CNN: Sheryl Crow: Brain tumor is a 'bump in the road'

That could indicate the drug is bringing about a clinically important difference in vision.

FORBES: Magazine Article

Others, often due to shortcomings in vision, ability or character, are relegated to bit parts and footnotes.

CNN: Now, Truly the Supreme Leader