Abstract:The Attentional Boost Effect (ABE) refers to a phenomenon in dual-task operations where the target response in a target detection task enhances the memory performance of concurrently presented memory materials. This effect arises from a balance between the facilitation induced by target detection and the interference caused by dual-task demands. To further clarify the sources of interference in dual-task processing and their modulation, this study employed an ABE research paradigm involving implicit memory and manipulated different levels of response competition between the dual tasks. The results indicate that response competition affects ABE in implicit memory, and this effect is independent of the type of implicit memory but is modulated by the attentional resource demands of response competition.