People who viewed an image of a dead cat (or something equally negative) after recalling a newly learned Swahili word were better at later remembering the word than people who viewed a neutral image, say Bridgid Finn and Henry L. Roediger III of Washington University. The viewers of negative images remembered 57% of what they had previously recalled, compared with 44% for people who saw neutral pictures. An emotionally arousing event may enhance "reconsolidation" of memory because the brain's emotional centers have close connections with the reconsolidation region, the researchers say.