The Effect Of State Anxiety And Working Memory Capacity On Suppression Of Distracting Information

Working memory is a system of temporary storage and processing of limited information in the process of carrying out cognitive tasks,which is the core of cognitive activities.Some studies have found that match the visual working memory content of distraction stimulus will automatically capture the attention of the individual,rather than on the contrary,some other studies found no evidence of memory drive,drive even found that memory attention capture eliminates in some conditions,indicating that visual working memory on the effects of selective attention is not automatic,it is flexible and can be controlled.The effect of this effect on ERP is N2pc(attention to capture related ERP components)and Pd(attention to inhibition of related ERP components)components.Individual differences in working memory capacity,a number of studies that visual working memory capacity depends on the individual differences of ability to pay attention to control,high working memory capacity of the subjects,can better keep the attention focused on the task related information,and can better to suppress distraction stimulus,but low capacity in the whole process of information kept by the interference of distraction.So what's the difference in the neural mechanism of attention control between individuals with different working memory abilities?It has been found that attention control ability decreases in the state of anxiety.State anxiety also affects working memory,which is mainly manifested in inhibiting and transforming functions in executive function.What about the individual attention mechanism in the state of anxiety?In view of this,this research intends to adopt 2(visual working memory capacity,high,low)x 2(anxiety group,control group)between the subjects of experimental design,explore the state anxiety and working memory capacity's impact on individual inhibitory distracting information.First through an experiment-change detection task,delete selected high and low visual working memory capacity,and then were randomly divided into anxiety combination control group,the formal measurement experiment USES the change detection task paradigm individual inhibition of distracting information,and record eeg.It was found that the high and low working memory group found significant N2 pc components in the state of anxiety.Under control conditions,the high working memory group found significant Pd components,while the low-working memorygroup did not find significant N2 pc or Pd components.Therefore,we conclude that(1)the distraction stimulus matched with visual working memory is not always the automatic capture of individual attention,but is flexible and can be controlled.(2)the high working memory capacity of the individual,the stronger inhibition ability of distracting information(3)under the state anxiety,individual attention guiding system more bottom-up processing,at the same time the implementation of state anxiety can affect individual individual working memory function,which affects the individual inhibition of distracting information.