Cultural Transmission

Cultural transmission is the process by which knowledge, skills, norms, beliefs, and practices are passed from individual to individual and generation to generation within and across cultures. It is the mechanism by which culture exists at all — without transmission, each generation would begin from zero.

Human cultural transmission is distinctive in two ways: it is cumulative (each generation builds on what was transmitted rather than merely replicating it) and linguistically mediated (the full complexity of human culture depends on Language to encode, store, and transmit information that cannot be conveyed through direct imitation). Writing systems multiply the fidelity and range of transmission by decoupling it from face-to-face contact and individual memory.

Cultural transmission fails in predictable ways: information degrades across transmission chains (the telephone effect), gets filtered through the cognitive biases of transmitters and receivers, and is selectively preserved based on emotional salience and social utility rather than accuracy. Memetics attempts to model these selection pressures formally. See also Epidemiology of Representations and Oral Tradition.