Abstract
When domestic robots with faces are used heavily, the motors controlling their faces wear out and need to be replaced. We used the communication robot ``Ifbot'' to investigate ways to reduce this motor wear by creating facial features, expressions, and transitions between expressions that reduce the amount of motor movement needed and use LEDs effectively. We created face changes for four emotions (happiness, disgust, sadness, and anger) that were distinguished by observers with a statistically significant difference, and confirmed findings of face changes for surprise and neutral emotions. However, we could not create any face changes that were recognized as fear with a significant difference.
