The second language and culture " individual-learner " corresponds to a complex and multifaceted entity composed of social, emotional, cognitive and discourse based variables. On a pedagogical level, as the implementation of educational endeavours consists in putting tools at the service of individual-learners to foster language and culture 2 acquisition, it seems necessary to explore the conditions under which bridges could be built between social psychology, applied linguistics and second language teaching and learning. Our choice has been to address these individual -learners' language-based, core components, from a social-psychological perspective. This paper will define who the second language and culture individual-learners are and account for the psychosocial states that the learning process may trigger in them.