<p>Visuospatial working memory limitations are considered to be the underlying cause of the spatiotemporal interference effect. This study further investigated the relationship between spatiotemporal interference and other sub-components of working memory, specifically the central executive and verbal working memory. The spatial discrimination task was used to measure the intensity of the Tau effect, a typical form of spatiotemporal interference characterized by the cross-dimensional interference of time on space. Participants were presented with four small circles flashing in sequence, forming two spatial distances and two time intervals. They were required to judge which distance was longer while ignoring the time intervals. In Experiment 1, participants performed the Tau effect task under clear and blurred conditions separately, and the findings indicated that the Tau effect was stronger in the clear condition than the blurred condition. In Experiment 2, clear and blurred trials were randomly interleaved to consume resources related to executive control, and the results showed no significant difference in the Tau effect intensity between the two conditions, with the intensity being weaker than that in the clear condition of Experiment 1. Additionally, Experiment 3 found that as the verbal working memory load increased, the intensity of the Tau effect decreased. The findings indicate that the constraints in the central executive and verbal working memory also reduce the intensity of the spatiotemporal interference effect, rather than being confined to processing limitations within visuospatial working memory.</p>