| Inhibition of return is a phenomenon that when the target appears in the location previously noticed , people's reaction time(RT) increased, it is a kind of inhibition in spatial selective attention. This phenomenon is found by Posner and Cohen, they suggest that inhibition of return reflects the psychological mechanisms of flexibility and adaptability, so that attention is not paid attention attached to the original position, but quickly turned to the position previously not been noticed. In recent years, with the further research in inhibition of return, scholars concerns the relationship between working memory and inhibition of return, domestic and foreign scholars discuss from different angles of the relationship between inhibition and working memory. Currently, the relationship between the two studies are focused on spatial working memory load, intensity and spatial working memory traces inhibition of return, these are indirect research on the relationship between the two, but less in the direct relationship.This study tested whether dual-task paradigm for location-based and object-based IOR, respectively, are affected by non-spatial working memory and spatial working memory . To validate our hypothesis: location-based IOR was disrupted by spatial secondary task, and object-based IOR was disrupted by a non-spatial secondary task.Experiment II provides secondary evidence for the first experiment. In order to use the same task group to compare the direction task condition and the object task condition, we designed a secondary task type as within subjects factors, to ensure that inconsistencies in the two conditions is not caused by individual differences. And we made some changes on the stimulation in order to further approximate location typical location and object cueing paradigms.The results draw the following conclusions: (1) location-based IOR was disrupted by a spatial working memory system. (2) object-based IOR was disrupted by a non-spatial working memory system. |
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