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Hamida Demirdache is professor of linguistics at the University of Nantes, and member of the LLiNG Lab (UMR6310, CNRS/UN). Her interests lie at the syntax, semantics and language acquisition interfaces. Her research seeks to integrate theoretical and experimental methodologies to probe issues at these interfaces across a variety of typologically different adult and child languages. She is particularly interested in understanding how languages express (and children acquire) concepts that are essentially abstract (e.g. tense, quantification) and which all languages convey while showing a widespread variation in the means used to linguistically express them across languages. What are the source and limits of crosslinguistic diversity at these interfaces?

Jacyra Andrade Mota é Professora Emérita da Universidade Federal da Bahia. É a atual diretora presidente do Projeto Atlas Linguístico do Brasil (ALiB). Possui graduação em Letras pela Universidade Federal da Bahia (1961), mestrado em Letras e Lingüística pela Universidade Federal da Bahia (1980) e doutorado em Letras Vernáculas pela Universidade Federal do Rio de Janeiro (2002). É pesquisadora e bolsista do CNPq, atuando na área de Sociolinguística e Dialetologia.

Sun-Ah Jun is a Professor at UCLA, Department of Linguistics (Ph.D at Ohio State University, 1993). She has also taught at the Linguistic Society of America (LSA) Summer Institute and at the Netherlands Graduate School of Linguistics (LOT) Summer School. Her research interests include intonational phonology, prosodic typology, the effect of prosody in segment perception and sentence processing, the interface between prosody/syntax/focus, and language acquisition.