Naoki Kataoka, professor of pediatrics at Kawasaki Medical College in Kurashiki, Japan, has observed dozens of children who are extremely quiet and have little expression on their faces.
فقد اعتاد هؤلاء الاطفال ان يمضوا فترات طويلة في مشاهدة التلفزيون او افلام الفيديو .‏