There is a great deal of research supporting the temporary theory of dreaming, especially psychological research on many series of dreams after traumatic events and at other times. These support especially the tenets of the theory involving the CI of the dream as influenced by dreamer ' underlying emotion. Among the clearest finding are those from a systematic study of 880 dreams before versus after September 11, 2001. The dream after September 11, a time of increase stress or emotional arousal, showed higher CI intensity. This difference was highly significant, whereas all other measure tested showed no significant differences, there was also a shift in emotion pictured toward more fear/terror.