阅读难度：

Researchers claim that finding solutions and remembering things is much easier if your mobile phone is on silent, because ring tones -- and especially catchy songs -- drain your brain power, the Daily Mail reported.

Scientists at Washington University in St Louis found that students scored up to 25 per cent less on tests after being exposed to ringing mobile phones.

The worst results were posted after hearing a song they knew and liked.

The study was published in the Journal of Environmental Psychology.

（点击《每日邮报》查看原文）

手机静音：明智选择

        据英国《每日邮报》报道，研究人员称，手机保持静音，思考问题、背诵记忆将更加高效。各种铃音，尤其是好听的歌，会消耗脑力。

       美国圣路易斯华盛顿大学的科学家发现，学生们若在手机铃声泛滥的环境中考试，所得成绩会低于实际水平，最多可能下降25%。

       如果播放他们熟悉和喜爱的歌曲，成绩最糟。

       这项研究已发表在《环境心理学》杂志上。

(China.org.cn February 16, 2012)