“Humans have five basic emotions (joy, sadness, anger, fear, disgust).”

The idea that humans possess a small, definitive set of basic emotions is a widely held belief, largely popularized by influential psychological research. This common misconception often points to five core emotions, likely stemming from a slight simplification or earlier interpretation of psychologist Paul Ekman's groundbreaking work. Ekman's studies, particularly his cross-cultural research in the 1960s and 1970s, provided strong evidence for the universality of certain facial expressions, leading him to identify six universally recognizable basic emotions: happiness (Review), sadness, fear, anger, disgust, and surprise. These emotions are considered "basic" because they are thought to be innate, automatic, and play a crucial role in our evolutionary survival, with distinct physiological responses and universally understood facial signals.

However, the scientific understanding of emotions is more nuanced and continues to evolve. While Ekman's framework is highly influential, other prominent researchers have proposed different models. For instance, psychologist Robert Plutchik suggested eight basic emotions: joy, trust, fear, surprise, sadness, disgust, anger, and anticipation. He organized these into a "wheel of emotions," illustrating how they relate, vary in intensity, and can combine to form more complex feelings. Furthermore, more recent studies, such as research from the University of Glasgow, have even suggested that some of Ekman's original six, like fear and surprise, or anger and disgust, might share common early facial signals, potentially reducing the number of truly "basic" emotions to four.

People commonly embrace the idea of a limited number of basic emotions because it offers a straightforward and intuitive way to categorize our complex internal experiences. The clear, universal facial expressions associated with these emotions make them easy to identify and understand across different cultures, lending credence to their fundamental nature. While the notion that some emotions are foundational is plausible and supported by evidence of their evolutionary significance, the precise number remains a topic of ongoing scientific discussion and exploration.