Disasters will induce severe physical and psychological trauma and post-disaster psychological aid is an important way to alleviate the trauma. After a disaster, people generally live in a negative mood. According to the theory of positive psychology, the focus of post-disaster psychological aid to victims is not to eliminate the negative emotions, but to help them live a normal life in negative emotional state. Changes in one＇s emotion refers a zone named zone of proximal development （ZPD）, which means when a person is affected by external stimuli of emotional problems, psychological external influences can be imposed within a specific range. Therefore, the post-disaster psychological aid based on the zone should be focused on the following aspects. Firstly, the induction intensity should be moderate. Secondly, the most familiar entertainment way for a person is the best way to induce, Finally, the induction should be taken at a period of time after the disaster.

大灾难过后人们的身心会受到严重创伤,灾后心理救助是缓解这种创伤的重要手段之一。灾后人们通常处于极度的消极情绪当中,根据积极心理学的理论,灾后心理救助的重点不是消除灾民的消极情绪,而是帮助他们在当时的消极情绪状态下仍可以正常地生活。人的情绪影响或变化存在一个最近发展区(ZPD),即个体在受到外在刺激而出现情绪问题时,心理学所能施加的外在影响具有一个特定范围。因此,基于情绪变化ZPD的灾后心理救助主要关注3个方面:①诱导强度要适中;②诱导方式最好采用个体之前较为熟悉的娱乐方式来进行诱导;③诱导的时间最好是在灾难发生过一段时间后。