Comment: The Science of Positive Emotion: You've Come a Long Way, Baby/There's Still a Long Way to Go

After decades of neglect, positive emotion is now the focus of a rich, diverse, and rapidly growing field. Basic research has advanced understanding of positive emotions' neural mechanisms, nonverbal expression, and implications for cognition and motivation, with increasing appreciation of positive emotion differentiation, as well as cultural and contextual moderators of positive emotions' effects. Much research has also addressed ways positive emotions can be leveraged to improve the human condition, and the mechanisms by which interventions have beneficial effects. As always, new knowledge raises more questions, and we still have a long way to go before the promise of this field can be fully realized. This comment reviews major developments in positive emotion science and offers recommendations for the future.