Memes-Conditioning

Can one say that cultural memes propagate because of social conditioning ?

Meme-an element of a culture or system of behaviour passed from one individual to another by imitation or other non-genetic means.

Conditioning, in physiology, a behavioral process whereby a response becomes more frequent or more predictable in a given environment as a result of reinforcement, with reinforcement typically being a stimulus or reward for a desired response.  They are based on the assumption that human behaviour is learned.