Article Title,Year,Volume,Issue,Page Range,Author The happiness of people with a mental disorder in modern society,2011,1,1,2,Bergsma Building a neuroscience of pleasure and well-being,2011,1,1,3,Berridge The virtuousness of adult playfulness: the relation of playfulness with strengths of character,2011,1,1,4,Ruch A meta-analysis of hope enhancement strategies in clinical and community settings,2011,1,1,5,Weis