Showing lots more emotion.

• Position: PSYCHOLOGY - Brief article

Since the 19th century, scientists have classified human emotions into six categories: happiness, sadness, fear, anger, surprise, and disgust--each reflected by distinct facial expressions displayed by people around the world. But researchers at Ohio State University recently identified 15 additional emotions ranging from "fearfully surprised" to "sadly disgusted." First they hypothesized the existence of the new emotions-combinations of the original six; then they asked 230 volunteers to try them on while their...