Valence is a concept in psychology and neuroscience that refers to the positive or negative emotional value associated with a stimulus or experience. It is often used to describe the overall subjective feeling or emotional tone of an individual's thoughts, beliefs, or experiences. Valence is typically measured on a continuum from negative to positive, with neutral in the middle. Research in this area explores how valence influences cognitive processes, decision-making, behavior, and overall well-being. Understanding valence can help researchers and practitioners better understand human emotions and how they impact various aspects of life.