Abstract: Objective: To analyze the relationship between perceptual load, attentional set, negative emotion and nursing Inattentional Blindness (IB) by establishing a predictive model of the influencing factors of IB in nursing. Methods: From June to July 2020, 976 nurses from three tertiary general hospitals in Guiyang were selected by convenience sampling method. The status and the influencing factors of nurses' IB were investigated. The structural equation model was used to analyze the roles of nurses' perceptual load, attentional set and negative emotions in the emerging of nursing IB. Results: Attentional set, perceptual load, and negative emotions positively affected IB, with an interpretation rate of 70.2%. The total effect of perceptual load on IB was 0.435, the direct effect was 0.196, and mediation effect was 0.239, accounting for 54.9%. The total effect of attentional set on IB was 0.434, direct effect was 0.234, and mediation effect was 0.200, accounting for 46.1%. Conclusion: Perceptual load, attentional set and negative emotions are the direct influencing factors of nursing IB, while negative emotions play an intermediary effect between perceptual load, attentional set and the occurrence of IB in nursing, and have a positive correlation predictive effect. The results of this study provide a theoretical basis for the targeted prevention of the occurrence of nursing IB in the future.

Key words: Inattentional Blindness; nursing; structural equation model; predictive model