For many years, Roger Brown and his colleagues have studied the developing language of pre-school children--the language that ultimately will permit them to understand themselves and the world around them. This longitudinal research project records the conversational performances of three children, studying both semantic and grammatical aspects of their language development. The five stages of linguistic development Brown establishes are measured...

The functions of symbolism in the representative and non-representative arts.

What precisely is language, and how did humans acquire it? In an effort to answer those essential questions, this program journeys back to prehistoric times in search of language's origin. But this is not a passive discussion, as Noam Chomsky; Brown University's Philip Lieberman; Johanna Nichols, of U.C. Berkeley; Stanford University's Merritt Ruhlen; professor of anthropology Richard Klein; Nobel physicist Murray Gell-Mann; and others passionately...