Susan D. Moeller of the University of Maryland and the director of International Center for Media & the Public Agenda says whether in developing countries or developed countries the findings are strikingly similar in how teens and young adults use media and how "addicted" they are to their cellphone, laptop or mp3 player.

　　 

　　The researchers and colleagues at the Salzburg Academy on Media & Global Change asked about 1,000 students in 10 countries on five continents to give up all media for 24 hours and record their experiences.

　　 

　　The study found the students reacted almost identically to being unplugged from media and used virtually the same words to describe their reactions, including: fretful, confused, anxious, irritable, insecure, nervous, lonely, depressed, jittery and paranoid.