Aussie-Sino Studies

2016, (1) P100-P106

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The Influence of a Peripheral Cue on the Spatial-Numerical Association of Response Codes Effect:An Event-Related Potentials Study

Pan Yun 1,2;Liu Yu 1;Luo Yeshuang 1;Chen Yan 1, 2;Luo Yu 1,2;Xu Shuang 1,2

摘要(Abstract):

Previous research has shown that numerical and spatial representations are inextricably linked. The spatial-numerical association of response codes (SNARC) effect reveals an association between numerical magnitude and lateralized motor responses with faster responses to digits when the reaction side is congruent with the digit position on a mental number line (e.g., a left-hand side response to a small magnitude) and slower responses in the case of incongruity (e.g., a left-hand side response to a larger magnitude). However, few studies have examined the influence of attention on numerical processing. We examined the electrophysiological correlates of conflict, which are linked to the facilitation and inhibition of the SNARC effect, to elucidate the relationship between the SNARC effect and visual orienting of attention elicited by a peripheral cue. Participants responded more quickly on congruent than on incongruent trials. The validly cued stimuli elicited enhanced N1, and P3 components compared to invalidly cued stimuli with a peripheral cue, indicating a support of attention when the target is presented in the cued location. Moreover, the congruency of the SNARC effect emerged in the early sensory (N1) component only in valid trials whereas, in the later P3, it occurred only in invalid trials. These results suggest that the SNARC effect is influenced by the orienting of attention, particularly in the early stages, and the orienting of attention contributes to the spatial representation of a task-related path.

关键词(KeyWords): SNARC effect; event-related potential; peripheral cue; visuo-spatial attention

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基金项目(Foundation): This research was funded by the National Natural Science Foundation of China (NSFC31260234), the Science and Technology Fund Project of Guizhou province ([2013]2210).

作者(Author): Pan Yun 1,2;Liu Yu 1;Luo Yeshuang 1;Chen Yan 1, 2;Luo Yu 1,2;Xu Shuang 1,2

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