心理学报2025，Vol.57Issue(6)：1001-1012,12.DOI:10.3724/SP.J.1041.2025.1001
客体类别差异调节视听跨通道冲突中反应水平的感觉主导效应
Object category differences regulate the sensory dominance of the response level in an audiovisual cross-modal conflict
摘要
Abstract
Sensory dominance is a phenomenon in which the brain selectively processes specific sensory information when presented with multisensory inputs,thereby enhancing human perception of external stimuli.Previous studies have discussed sensory dominance at perceptual and response levels.However,how the intermediate processing level between perceptual and response levels affects sensory dominance remains unknown.Therefore,the present study adopted the cross-modal 2-1 mapping paradigm,and object categories were manipulated through three studies to investigate the role of the intermediate processing level on sensory dominance in a cross-modal conflict. In this paradigm,based on key mapping,cognitive processing levels can be defined into the preresponse level(including perceptual and semantic levels)and the response level.The difference between the audiovisual incongruent condition and the audiovisual congruent condition is called the conflict effect,and sensory dominance can be obtained by comparing the conflict effect of attention to vision and auditory.Experiment 1 manipulated the degree of difference in object categories to explore its impact on sensory dominance.Experiments 1a-1c involved animal objects(small differences),tool objects(moderate differences),and animal and musical instrument objects(large differences).A total of 30 participants were recruited for each experiment.Visual pictures reached perceptual representation early,whereas auditory sounds reached semantic representation early.Therefore,Experiment 2(34 participants)changed visual pictures into visual words on the basis of Experiment 1c to explore the effects of the visual presentation way of object categories on sensory dominance.In Experiment 3(20 participants),transcranial direct current stimulation(tDCS)was used on the left anterior temporal lobe,an important brain region responsible for processing object categories to study casually the effects of object category on the sensory dominance of the response level further. The results of Experiment 1 showed that,regardless of the difference in object categories,the conflict effect of attention to auditory at the preresponse level was significantly greater than that of attention to vision,that is,visual dominance.However,visual dominance at the response level appeared when the object category difference was small(Experiment 1a).Moreover,no sensory dominance was observed when the object category difference was moderate(Experiment 1b),and auditory dominance appeared when the object category difference was large(Experiment 1c).The results of Experiment 2 and Experiment 1c were consistent,that is,auditory dominance,indicating that this behavior pattern was not affected by the bottom-up visual presentation way.The results of Experiment 3 showed that under the cathodal tDCS condition,the preresponse level still showed visual dominance.However,the response level no longer showed sensory dominance.This result showed the effects of object categories on the sensory dominance of the response level from the causal level. The mechanism of sensory dominance is still under investigation.The present study was the first to find that object categories affected the sensory dominance of the response level.From the perspective of cognitive processing level,the intermediate processing level played a regulating role in the sensory dominance of the response level.This finding can enrich the explanatory theory of sensory dominance and can provide a new perspective for the study of sensory dominance in a cross-modal conflict.关键词
客体类别/视觉主导效应/听觉主导效应/反应前水平/反应水平Key words
object categories/visual dominance/auditory dominance/preresponse level/response level分类
心理学引用本文复制引用
周衡,王爱君,袁祥勇,蒋毅..客体类别差异调节视听跨通道冲突中反应水平的感觉主导效应[J].心理学报,2025,57(6):1001-1012,12.基金项目
江苏省社会科学基金(24JYB003). （24JYB003）
