On the basis of cultural learning, people create, remember, and deal with ideas. They understand and apply specific systems of symbolic meaning. Cultures have been compared to sets of control mechanisms, plans, recipes, rules, or instructions. Cultural differences have been found in academic motivation, achievement, learning style, conformity, and compliance. Cultural learning is dependent on innovation or the ability to create new responses to the environment and the ability to communicate or imitate the behavior of others. A meme is "an idea, behavior or style that spreads from person to person within a culture. " A meme acts as a unit for carrying cultural ideas, symbols or practices, which can be transmitted from one mind to another through writing, speech, gestures, rituals, or other imitable phenomena. The term was coined by the British evolutionary biologist Richard Dawkins in The Selfish Gene (1976).