Abstract
1. Introduction
2. Approaches to understanding language acquisition and age
2.1 Isolate and Feral-Wolf Children
2.2. Language Acquisition and the Brain
2.3. Genie and deaf children
3. Second language acquisition (SLA) and the CPH
3.1. Non-neurological factors
3.2. Social-psychological explanations
3.3. Cognitive explanations
3.4. Input
4. Discussion of the SLA literature
References