ISSN 0439-755X
CN 11-1911/B

Acta Psychologica Sinica ›› 2025, Vol. 57 ›› Issue (6): 1001-1012.doi: 10.3724/SP.J.1041.2025.1001

• Reports of Empirical Studies • Previous Articles     Next Articles

Object category differences regulate the sensory dominance of the response level in an audiovisual cross-modal conflict

ZHOU Heng3,4, WANG Ai-Jun1,2,5(), YUAN Xiang-Yong3,4, JIANG Yi3,4()   

  1. 1Department of Psychology, Faculty of Education, Guangxi Normal University, Guilin 541004, China
    2Guangxi College and University Key Laboratory of Cognitive Neuroscience and Applied Psychology, Guilin 541004, China
    3State Key Laboratory of Brain and Cognitive Science, Institute of Psychology, Chinese Academy of Sciences, Beijing 100101, China
    4Department of Psychology, University of Chinese Academy of Sciences, Beijing 100049, China
    5Department of Psychology, Research Center for Psychology and Behavioral Sciences, Soochow University, Suzhou 215123, China
  • Published:2025-06-25 Online:2025-04-15
  • Contact: WANG Ai-Jun, E-mail: ajwang@suda.edu.cn; JIANG Yi, E-mail: yijiang@psych.ac.cn

Abstract:

The sensory dominance refers to the phenomenon where the brain prioritizes the processing of information from a specific sensory modality when faced with multisensory modalities. The cognitive processing level hypothesis posits that the sensory dominance effect is determined by different levels of cognitive processing, with early perceptual processing favoring visual dominance and late response processing favoring auditory dominance. However, existing research has not focused on how the intermediate processing levels between early and late stages of cognitive processing influence the sensory dominance effect. This study manipulated object category differences at the intermediate processing level, employing a 2-1 mapping paradigm to examine how object category representation between early perceptual and late response levels affects cross-modal sensory dominance effects through three experiments. Experiment 1 found that object category differences can modulate the sensory dominance effect at the response level, with visual dominance when category differences are small and auditory dominance when they are large. Experiment 2 indicated that this effect is not related to different processing depths of visual stimuli, confirming that the effect is specific to the visual channel. Experiment 3, using transcranial direct current stimulation (tDCS) to inhibit the brain area responsible for category processing, the left anterior temporal lobe, found that the auditory dominance at the response level disappeared. The study demonstrates that the object category representation at the intermediate processing level within cognitive processing levels regulates the sensory dominance effect, thereby refining the cognitive processing level hypothesis's explanation of cross-modal sensory dominance effects.

Key words: object category, visual dominance, auditory dominance, pre-response level, response level