Experiments of displaying images to keep the motivation in e-learning

E-learning systems that use computers and the Internet have become popular. E-learning systems have many advantages. However, the users often lose their motivation for learning in the process of studying, and the frequency that they use e-learning systems sometimes decreases. In order to improve or keep their motivation, we add a function that the users are praised or scolded by displaying images of a teacher, actors, and friends. We check to see if the function is effective or not through experiments.