  Emotions, which are an important component of social interaction, can be
studied with the help of android robots and their appearance, which is as
similar to humans as possible. The production and customization of android
robots is expensive and time-consuming, so it may be practical to use a digital
replica. In order to investigate whether there are any perceptual differences
in terms of emotions based on the difference in appearance, a robot head was
digitally replicated. In an experiment, the basic emotions evaluated in a
preliminary study were compared in three conditions and then statistically
analyzed. It was found that apart from fear, all emotions were recognized on
the real robot head. The digital head with "ideal" emotions performed better
than the real head apart from the anger representation, which offers
optimization potential for the real head. Contrary to expectations, significant
differences between the real and the replicated head with the same emotions
could only be found in the representation of surprise.
