手机总放在身边会导致认知能力下降

It has long been believed that the smartphones in our pockets are actually making us dumber; but now there is evidence for it. , ,人们一直都觉得口袋里的智能手机让我们越来越笨了 ，现在有科学证据来证明了。, ,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. , ,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. , ,The effect was measurable even when the phones were switched off, and was worse for those who were deemed more dependent on their mobiles. , ,"Although these devices have immense potential to improve welfare, their persistent ¹ presence may come at a cognitive ² cost," said Dr Adrian Ward ³, 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 ⁴ presence of these devices reduces available cognitive capability ⁵."