It includes studies that focus on the constitution and functioning of discourse in different concrete cases, their effects on meaning and the subject-language relationship. Its object of analysis and theorization is the discourse and/or the enunciation in their specificities. By resorting to a number of methodological approaches, the studies tackles social, historical and ideological effects on discourse constitution, as well as the psychosocial dimensions and subjectivity embedded in enunciation and/or discourse.