Emotions in Psychology: Definition, Expression, and Perception Emotions are complex psychological and physiological states that influence thoughts, behaviors, and interactions. They are essential for survival, communication, and social bonding, making them a central focus in psychology. Definition of Emotions Components of Emotions Expression of Emotions 1. Facial Expressions: 2. Body Language: 3. Verbal Expressions: 4. Cultural Influences: Perception of Emotions 1. Emotional Perception: 2. Factors Influencing Perception: Theories of Emotions