Perspectives on Emotional Development -- A Preliminary Summary -- The Design of this Book -- The Structuralist Paradigm: Emotion as a Specific Psychological State -- The Functionalist Paradigm: Emotion as a Psychological Function -- The Dynamic-Systems Paradigm: Emotion as an Evolving System -- The Sociocultural Paradigm: Emotion as a Co-Constructed Psychological Function -- Emotion as a Functi…