1. The document discusses key psychological factors that influence second language acquisition, focusing on language aptitude, motivation, and language anxiety.
2. Language aptitude involves abilities like phonetic coding, grammar sensitivity, and memory that facilitate implicit and explicit language learning. Aptitude tests like the MLAT can predict L2 learning success.
3. Factors like age, learning experience, and instructional approach may influence which aptitude abilities are most important for different learners. Working memory is now seen as a core component of aptitude.