Research on the Mutation Mechanism of Victim's Psychology and Behavior after Natural Disaster Based on Catastrophe Theory

Aiming at the problem of victim's rational and irrational behavior during recovery stage in natural disaster, this paper analyzed the victim's psychological and behavioral characteristics and influencing factors during recovery stage based on lots of literatures and an interview with victims. Besides, a cusp catastrophe model is constructed to explore the mutation mechanism of victim's psychology and behavior at the role of physical demand factors and emotional needs factors. Finally, the paper put forward some strategies to cope with victim's psychology and behavior during recovery stage based on the cusp catastrophe model analysis.