Cultivation theory proposes that heavy television viewing can influence people's perceptions of social reality. Developed by George Gerbner, cultivation theory suggests that the more time people spend watching television, the more likely they are to believe portrayals of the world reflected in television programming. In particular, heavy television viewers may overestimate occurrences of violence and hold more fearful views than light viewers. Cultivation theory research involves large surveys and experiments that relate television viewing habits to perceptions of issues like crime rates and personal safety.