It has long been believed that the smartphones in our pockets are actually making us dumber; but now there is evidence for it. 
人們一直都覺得口袋里的智能手機讓我們越來越笨了，現(xiàn)在有科學(xué)證據(jù)來證明了。

The constant presence of a mobile phone has a "brain drain" effect that significantly reduces people's intelligence and attention spans, a study has found. 
研究發(fā)現(xiàn)，手機的長期在場會產(chǎn)生一種“腦力流失”效應(yīng)，會嚴(yán)重地降低人們的智力和專注時長。Researchers at the University of Texas discovered that people are worse at conducting tasks and remembering information if they have a smartphone within eye shot. In two experiments they found phones sitting on a desk or even in a pocket or handbag would distract users and lead to worse test scores even when it was set up not to disturb test subjects. 
德克薩斯大學(xué)的研究人員發(fā)現(xiàn)：當(dāng)手機在視線范圍內(nèi)時，人們在處理任務(wù)和記憶信息方面的表現(xiàn)會更糟糕。在兩組實驗中，他們發(fā)現(xiàn)只要手機放在桌上甚至只放在口袋或手提包里，即便設(shè)置成防干擾模式，也能讓人分心并且導(dǎo)致更低的測試分?jǐn)?shù)。The effect was measurable even when the phones were switched off, and was worse for those who were deemed more dependent on their mobiles. 
即使處于關(guān)機狀態(tài)，手機的影響仍然很大，對嚴(yán)重依賴手機的人影響更大。"Although these devices have immense potential to improve welfare, their persistent presence may come at a cognitive cost," said Dr Adrian Ward, the lead author of the study. "Even when people are successful at maintaining sustained attention - as when avoiding the temptation to check their phones - the mere presence of these devices reduces available cognitive capability." 
這項研究的主要作者阿德里安•沃德博士表示：“盡管這些電子設(shè)備可以極大地便利生活，但手機總放在身邊會導(dǎo)致認(rèn)知能力下降。即使能夠成功保持長期注意力，也就是能抵擋查看手機的誘惑，現(xiàn)有的認(rèn)知能力也會因手機在場而降低。”The researchers tested 520 university students on their memory and intelligence when in the presence of a smartphone to see how it affected them. 
研究人員共測試了520名大學(xué)生，通過測試他們的記憶力和智力來研究智能手機在場與否對他們的影響。Participants were told to complete tests in mathematics, memory and reasoning with their smartphones either on their desk, in their bag or pockets, or in another room, and with alerts turned off so as not to distract students. 
實驗中，手機被分別放在桌子上、包里、口袋里或其他房間，參與者在不同情況下完成了數(shù)學(xué)、記憶和推理方面的測驗。為了不打擾測試者，手機提示音都被關(guān)閉了。Those who had their phones on the desk recorded a 10 percent lower score than those who left them in a different room on operational span tasks, which measures working memory and focus. Those who kept their phones further out of sight in their pockets or their bags scored only slightly better than when phones were placed on desks. 
與手機放在其他房間的人相比，手機放在桌子上的參與者在操作時長任務(wù)方面得分要低10%，這種任務(wù)主要是考查工作記憶力和注意力。而將手機放在口袋或包里等視線之外的參與者得分僅僅比手機放在桌子上的人高一點。The researchers found that the negative effect of having a phone within eyeshot was significantly greater among those who said they were dependent on their smartphones. Participants who had expressed sympathy with phrases such as "I would have trouble getting through a normal day without my cellphone" and “using my cellphone makes me feel happy” performed as well as others when their phone was in a different room, but worse when it was placed on their desk. 
研究人員還發(fā)現(xiàn)將手機放在視線內(nèi)對自稱依賴手機的人有更大的負(fù)面影響。當(dāng)聽到“要是沒有手機我一天也無法正常生活”、“使用手機讓我更快樂”等話語時，有些測試者表示深有同感。當(dāng)手機放在其他房間時，這些人和其他人表現(xiàn)得一樣好；但是當(dāng)手機放在桌子上時，他們的表現(xiàn)卻比其他人糟糕得多。

The study also found reaction speeds to be affected, with students who had their phone on the desk responding more sluggishly in high-pace tests. 
研究還發(fā)現(xiàn)，反應(yīng)速度也會受到影響。當(dāng)手機放在桌子上時，學(xué)生們在快速測驗中的反應(yīng)更加遲鈍。It even found that phones can even distract users even when they are turned off and placed face down. Those with phones outside of the room "slightly outperformed" those with switched off devices. 
研究甚至還發(fā)現(xiàn)：即便處于關(guān)機狀態(tài)并且面朝下放，手機也能讓人分心。實驗中，將手機放在房間外面的參與者的表現(xiàn)要略微勝于關(guān)機的參與者。The researchers said the effect arises because part of a smartphone users' mind is dedicated to trying to not think about distractions such as whether they have any messages when the handset is in their line of sight. 
研究人員認(rèn)為，手機之所以能對認(rèn)知能力產(chǎn)生影響，是因為當(dāng)手機在視線范圍內(nèi)時，手機使用者要消耗部分注意力來告誡自己不要分心，防止自己去想有沒有短信之類的問題。

"We see a linear trend that suggests that as the smartphone becomes more noticeable, participants' available cognitive capacity decreases," said Ward. "Your conscious mind isn't thinking about your smartphone, but that process - the process of requiring yourself not to think about something - uses up some of your limited cognitive resources. It's a brain drain." 
沃德博士認(rèn)為：“我們觀察到這樣一種線性趨勢，手機的存在感越強，參與者的認(rèn)知能力就弱。你并沒有在想手機，但是這個過程，這個控制自己不去想某個事物的過程，占據(jù)了你一部分本就有限的認(rèn)知力資源。這也是一種腦力流失。”Similar research has previously showed smartphones can have a "butterfly brain effect" on users that can cause mental blunders. 
此前類似的研究表明智能手機能對使用者產(chǎn)生“大腦蝴蝶效應(yīng)”，從而造成精神混亂。