1. The document discusses the development of language in children. It describes several theories of how language is acquired, including reinforcement, imitation, and Chomsky's nativist theory of an innate language acquisition device.
2. Modern interactionist views hold that children are biologically prepared for language but require extensive experience interacting with others using spoken language.
3. The document also discusses antecedents to language development, including pseudodialogues, protoddeclaratives, and protoimperatives - early communication behaviors that precede full language.