The influence of public opinions on emergency decision-making has attracted more and more attention in recent years. Emergency decision-making is characterized by high risk, fuzzy information and time pressure. Public opinions induced by emergency have important influence on people's decision-making preference. Based on the four induced conditions, including positive public opinion, neutral public opinion, negative public opinion and public opinion induced by emergent situations, this paper studies the brain evoked potential information of subjects and proposes a new intuitive decision-making model. The results show that the average scores of the positive opinion group on the positive scale are significantly different, while the scores of the negative opinion group on the negative scale are significantly different. Participants in group of public opinion induced by emergent situations tend to be more adventurous in their decision-making preferences than those in the negative public opinion group. The results of brain information processing of neutral, positive and negative public opinion groups show that both the standard stimulus and deviant stimulus could induce obvious negative deflection in 100-200ms in EEG. In the processing the information induced by emergent situations, amplitude deviation between the standard stimulus and deviant stimulus is smaller, which is perceived as insensitive

Public Opinion, Decision-Making Preference, Decision-Making Model, Electroencephalogram (EEG), Amplitude