[In this book, this motivational aspect will be imbedded in and related to other theories of (intrinsic) motivation and empirical work on flow and performance. The book provides a review of the current flow research, with a focus on rigorous analysis on methodology. The author takes the time to present methodological aspects in flow research to qualify empirical work. In addition, this volume presents neuropsychological considerations and empirical correlates of flow experiences. , In this book, this motivational aspect will be imbedded in and related to other theories of (intrinsic) motivation and empirical work on flow and performance. The book provides a review of the current flow research, with a focus on rigorous analysis on methodology. The author takes the time to present methodological aspects in flow research to qualify empirical work. In addition, this volume presents neuropsychological considerations and empirical correlates of flow experiences. ]