@inproceedings{AubreyCunninghamMarshalletal.2013, author = {Andrew Aubrey and Douglas W. Cunningham and David Marshall and Paul L. Rosin and Christian Wallraven}, title = {The face speaks: contextual and temporal sensitivity to backchannel responses}, booktitle = {Computer Vision - ACCV 2012 Workshops, Daejeon, Korea, November 5-6, 2012, part II}, pages = {248 -- 259}, year = {2013}, }