1 The workshop " Investigating Social Interactions With Artificial Agents " organized within the " International Conference on Multimodal Interactions 2017 " attempts to bring together researchers from different fields sharing a similar interest in human interactions with other agents. If interdisciplinarity is necessary to address the question of the " Turing Test " , namely " can an artificial conversational artificial agent be perceived as human " , it is also a very promising new way to investigate social interactions in the first place. Biology is represented by social cognitive neuroscience, aiming to describe the physiology of human social behaviors. Linguistics, from humanities, attempts to characterize a specifically human behavior and language. Social Signal Processing is a recent approach to analyze automatically, using advanced Information Technologies, the behaviors pertaining to natural human interactions. Finally, from Artificial Intelligence, the development of artificial agents, conversational and/or embodied, onscreen or physically attempts to recreate non-human socially interactive agents for a multitude of applications.