“Some time next year an embryo will be cloned from a human adult. It will be implanted in the uterus of a young woman selected with some care for her wide pelvis and robust health. A son will be born at the dawn of the third millennium. Neither angels nor news wires are likely to herald the birth. The father — an Asian plutocrat, South American kleptocrat or aging Western rock star — won’t be l...

Enhanced sensitivity to information of negative (compared to positive) valence has an adaptive value, for example, by expediting the correct choice of avoidance behavior. However, previous evidence for such enhanced sensitivity has been inconclusive. Here we report a clear advantage for negative over positive words in categorizing them as emotional. In 3 experiments, participants classified bri...