Five days at outdoor education camp without screens improves preteen skills with nonverbal emotion cues December 16, 2014December 16, 2014 authmathinstructor Articles Computers in Human Behavior, Emotional Cues, Face time, Preteens, Screen time, UCLA “Five Days at Outdoor Education Camp Without Screens Improves Preteen Skills With Nonverbal Emotion Cues,” Yalda T. Uhls and Patricia M. Greenfield et al., Computers in Human Behavior (online Aug. 15) http://www.cdmc.ucla.edu/Welcome_files/2755v1%281%29.pdf