Duration neglect is a quirk of human memory that causes us to disregard the length of an experience when evaluating its overall pleasure or pain. Instead, we tend to rate the experience based on its peak intensity and how it ends, a phenomenon known as the "peak-end rule." This cognitive bias means that whether an unpleasant or pleasant event lasts for minutes or hours, our retrospective judgment of it won't necessarily be proportional to its actual duration.
Understanding duration neglect is crucial because it has profound implications across various aspects of life, from healthcare to marketing, and even in our personal happiness. For instance, patients might evaluate a medical procedure as less aversive if the most painful part is mitigated, regardless of how long it takes. Similarly, businesses can design customer experiences by focusing on creating strong positive peaks and satisfying conclusions rather than worrying excessively about the length of engagement. Recognizing this bias helps us make more informed decisions about how we allocate our time and effort for maximum satisfaction.