当个人的动机和能力比较弱的时候。动机：个人会满足于当前的认知，不愿意耗

When the individual's motivation and capacity is relatively weak time. Motivation: individual would be satisfied with the current knowledge, do not want to spend more experience to analyze the information more readily apparent features (as it credibility and professionalism of passengers) convinced; capacity: because people can not judge the authenticity of the information content, the credibility of this information can only be determined by a number of external factors information. Thus covering the emotional factors.

When an individual's motivation and ability are weak. Motivation: Individuals are satisfied with current perceptions, unwilling to spend more experience analyzing information, and more likely to be persuaded by apparent characteristics (such as lobbyist's credibility and professionalism); Thus covers the emotional factor.

When one's motivation and ability are weak. Motivation: the individual will be satisfied with the current cognition, unwilling to spend more experience to analyze the information, and more easily convinced by the apparent characteristics (such as the credibility and professional level of the lobbyist); ability: because people cannot judge the authenticity of the information content, the credibility of the information can only be determined by some peripheral factors of the information. So it covers the emotional factors.