Image: Carnegie Mellon University
While searching for tomorrow's High Five for NewLearningTimes.com I came-upon an exploration of this study by Carnegie Mellon University researchers (originally published in Psychological Science). The piece points to a correlation between highly decorated classrooms and highly distracted learners (in the primary grades - Kindergarteners were the focus of the study).
From the Medical Xpress article listed above:
They found that children in highly decorated classrooms (bottom image) were more distracted, spent more time off-task and demonstrated smaller learning gains than when the decorations were removed (top image).