The papers assembled in this volume aim to contribute to our understanding of the human capacity for language: the generative procedure that relates sounds and meanings via syntax. Different hypotheses about the properties of this generative procedure are under discussion, and their connection with biology is open to important cross-disciplinary work. Advances have been made in human-animal studies to differentiate human language from animal communication. Contributions from neurosciences point to the exclusive properties of the human brain for language. Studies in genetically based language impairments also contribute to the understanding of the properties of the language organ. This volume brings together contributions on theoretical and experimental investigations on the Language Faculty. It will be of interest to scholars and students investigating the properties of the biological basis of language, in terms of the modeling of the language faculty, as well as the properties of language variation, language acquisition and language impairments.