Frontmatter -- Contents -- Foreword -- Introduction: A Critical Look at the Critical Period Hypothesis in Second Language Acquisition Research -- 1 Can Late Starters Attain a Native Accent in a Foreign Language? A Test of the Critical Period Hypothesis -- 2 Multi-Competence and Effects of Age -- 3 Some Critical Remarks Concerning Penfield's Theory of Second Language Acquisition -- 4 Evaluating the Need for Input Enhancement in Post-Critical Period Language Acquisition -- 5 Some Critical Remarks on the Phonological Component -- 6 Is There an Age-Factor for Universal Grammar? -- Index