Abstract
The present study examined effects of question-and-answer training of a 10-year-old boy with a pervasive developmental disorder, in which video clips were used to explain to him about emotional states and their causes. In the training sessions, the boy was shown several video clips of actors becoming angry, and then was asked to answer the question, "What is happening to him?" In subsequent generalization sessions, he was shown video clips that had not been used in the training sessions of actors appearing angry, as well as other video clips of actors exhibiting various other emotions (cheerful, happy, sad, and lonely). The results showed that generalization of the recognition of emotional states occurred with respect to all of the "angry" video clips that had not been used in the training sessions, as well as to other emotional states, but that generalization of knowledge about causes of the emotional states did not occur with respect to some of the video clips that had difficult criteria.
