Dear Editor,Post-traumatic stress disorder(PTSD)is a chronic neuropsychiatric disorder triggered by severe traumatic events,characterized by persistent intrusive memories,emotional dysregulation,hyperarousal,and avoid...Dear Editor,Post-traumatic stress disorder(PTSD)is a chronic neuropsychiatric disorder triggered by severe traumatic events,characterized by persistent intrusive memories,emotional dysregulation,hyperarousal,and avoidance behaviors[1,2].PTSD is associated with significant gene expression changes in key brain regions,including the ventral tegmental area(VTA),which may underlie dysregulation of dopaminergic signaling and stress-related behaviors[3].展开更多
Crisis information dissemination plays a key role in the development of emergency responses to epidemic-level public health events.Therefore,clarifying the causes of crisis information dissemination and making accurat...Crisis information dissemination plays a key role in the development of emergency responses to epidemic-level public health events.Therefore,clarifying the causes of crisis information dissemination and making accurate predictions to effectively control such situations have attracted extensive attention.Based on media richness theory and persuasion theory,this study constructs an index system of crisis information dissemination impact factors from two aspects:the crisis information publisher and the published crisis information content.A multi-layer perceptron is used to analyze the weight of the index system,and the prediction is transformed into a pattern classification problem to test crisis information dissemination.In this study,COVID-19 is considered a representative event.An experiment is conducted to predict the crisis information dissemination of COVID-19 in two megacities.Data related to COVID-19 from these two megacities are acquired from the well-known Chinese social media platform Weibo.The experimental results show that not only the identity but also the social influence of the information publisher has a significant impact on crisis information dissemination in epidemic-level public health events.Furthermore,the proposed model achieves more than 95%test accuracy,precision rate,recall value and f1-score in the prediction task.The study provides decision-making support for government departments and a guide for correctly disseminating crisis information and public opinion during future epidemic-level public health events.展开更多
基金supported by grants from the National Natural Science Foundation of China(81871062)Guangdong Basic and Applied Basic Research Foundation(2024A1515012913)+1 种基金the Key Research Foundation of Guangdong Provincial Education Bureau(2023ZDZX2037)the Special Fund of Science and Technology Innovation Cultivation of Guangdong University Students(pdjh2024a238,pdjh2025ak133)。
文摘Dear Editor,Post-traumatic stress disorder(PTSD)is a chronic neuropsychiatric disorder triggered by severe traumatic events,characterized by persistent intrusive memories,emotional dysregulation,hyperarousal,and avoidance behaviors[1,2].PTSD is associated with significant gene expression changes in key brain regions,including the ventral tegmental area(VTA),which may underlie dysregulation of dopaminergic signaling and stress-related behaviors[3].
基金This research was supported by the National Natural Science Foun-dation of China[grant numbers 71804083,71801017,and 72104032]the Science Foundation of Beijing Information Science&Technol-ogy University[grant number 2021XJJ42].
文摘Crisis information dissemination plays a key role in the development of emergency responses to epidemic-level public health events.Therefore,clarifying the causes of crisis information dissemination and making accurate predictions to effectively control such situations have attracted extensive attention.Based on media richness theory and persuasion theory,this study constructs an index system of crisis information dissemination impact factors from two aspects:the crisis information publisher and the published crisis information content.A multi-layer perceptron is used to analyze the weight of the index system,and the prediction is transformed into a pattern classification problem to test crisis information dissemination.In this study,COVID-19 is considered a representative event.An experiment is conducted to predict the crisis information dissemination of COVID-19 in two megacities.Data related to COVID-19 from these two megacities are acquired from the well-known Chinese social media platform Weibo.The experimental results show that not only the identity but also the social influence of the information publisher has a significant impact on crisis information dissemination in epidemic-level public health events.Furthermore,the proposed model achieves more than 95%test accuracy,precision rate,recall value and f1-score in the prediction task.The study provides decision-making support for government departments and a guide for correctly disseminating crisis information and public opinion during future epidemic-level public health events.
