Verbal indicators of psychological distress in interactive dialogue with a virtual human David DeVault author Kallirroi Georgila author Ron Artstein author Fabrizio Morbini author David Traum author Stefan Scherer author Albert Skip Rizzo author Louis-Philippe Morency author 2013-08 text Proceedings of the SIGDIAL 2013 Conference Maxine Eskenazi editor Michael Strube editor Barbara Di Eugenio editor Jason D Williams editor Association for Computational Linguistics Metz, France conference publication devault-etal-2013-verbal https://aclanthology.org/W13-4032/ 2013-08 193 202