This textbook provides students with an accessible introduction to motivation and emotion. It takes a unique multidisciplinary approach that examines evolutionary, biological, and physiological factors critical in understanding human behavior. By understanding the essential functions of our motivations and emotions, as well as applying the principles and theories described in the text, students will not only gain insights into what motivates their own behavior but also into the processes for enacting self-change through goal setting and commitment.

The book's adoption of multiple perspectives to examine motivation and emotion facilitates the exploration of relevant and interesting topics such as interpersonal relationships, culture, humor, and music, while considering how personality traits, psychological needs, and psychological well-being play a vital role in understanding the reasons behind human behavior and the individual differences that make predicting others' behavior a difficult but fascinating area of study.

Key features of this new edition include:

• A fresh, engaging tone to make often difficult theoretical concepts come to life
• Increased inclusivity and discussion of motivation and emotion in diverse populations and the inclusion of studies on non-WEIRD populations
• Incorporation of a more balanced representation of perspectives, including more social, cognitive, and humanistic approaches to motivation, along with a more integrated focus on emotion
• The addition of the latest neurological evidence for motivation and emotion
• Discussions of motivations of compulsive behavior in relevant, real-world situations, such as drug use, gambling, online gaming, and obsessive exercise
• Updated resources for both instructors and students, including self-testing quizzes, flashcards, concept maps, videos, PowerPoint slides, and a test bank.

Combining classic studies with current research and real-world examples, this text is essential for undergraduate students in a variety of psychology and social science fields.

Anjolii Diaz is an Associate Professor in the Department of Psychological Science at Ball State University in Muncie, Indiana. She earned her PhD in Biological & Developmental Psychology at Virginia Tech and has been teaching psychology courses for over 15 years at both the undergraduate and graduate levels. Beyond teaching motivation and emotion, she has also taught courses on the psychology of learning, lifespan development, and memory and cognitive processes. Additionally, she enjoys teaching research seminars and professional development courses. Professor Diaz's research focuses on emotions throughout development and their role in various cognitive, social, and academic behaviors, as well as factors (e.g., caregiving, sleep, resilience) that may influence these relations. She is also a council member for the Midwestern Psychological Association and a longtime member of the American Psychological Association.

Lambert Deckers is a professor emeritus of psychological science at Ball State University in Muncie, Indiana. His 45-year academic tenure consists of 40 years devoted to teaching motivation and emotion. He also taught courses in the psychology of learning and in the history and systems of psychology. Professor Deckers is a charter member of the Association for Psychological Science and a member of the Society for the Science of Motivation.