How motor speed of a robot face can influence the "older" user's perception of facial expression?

The aim of this paper is to give a short overview on how facial expressions enhance interaction with elderly people. Two studies were done. The first one was an online questionnaire that gave information on what type of expressions were more appropriate and the second one was an experiment in which participants met the robot. This study's results suggested a correlation between facial expressions and interaction enhancement. Participants preferred a certain motor speed according to the facial expression presented which shows that speed has an influence on understanding expressions and beyond this, emotions. In the end, this paper presents some ways of enhancing interaction with the robot.