Hierarchical cortical entrainment orchestrates the multisensory processing of biological motion
Hierarchical cortical entrainment orchestrates the multisensory processing of biological motion
Abstract When observing others’ behaviors, we continuously integrate their movements with the corresponding sounds to achieve efficient perception and develop adaptive responses. However, how human brains integrate these complex audiovisual cues based on their natural temporal correspondence remains unknown. Using electroencephalogram, we demonstrated that cortical oscillations entrained to hierarchical rhythmic structures in audiovisually congruent human walking movements and footstep sounds. Remarkably, the entrainment effects at different time scales exhibit distinct modes of multisensory integration, i.e., an additive integration effect at a basic-level integration window (step-cycle) and a super-additive multisensory enhancement at a higher-order temporal integration window (gait-cycle). Moreover, only the cortical tracking of higher-order rhythmic structures is specialized for the multisensory integration of human motion signals and correlates with individuals’ autistic traits, suggesting its functional relevance to biological motion perception and social cognition. These findings unveil the multifaceted roles of entrained cortical activity in the multisensory perception of human motion, shedding light on how hierarchical cortical entrainment orchestrates the processing of complex, rhythmic stimuli in natural contexts.
Wang Ying、Shen Li、Jiang Yi、Tian Yuhao、Li Shuo
State Key Laboratory of Brain and Cognitive Sciences, CAS Center for Excellence in Brain Science and Intelligence Technology, Institute of Psychology, Chinese Academy of Sciences||Department of Psychology, University of Chinese Academy of SciencesState Key Laboratory of Brain and Cognitive Sciences, CAS Center for Excellence in Brain Science and Intelligence Technology, Institute of Psychology, Chinese Academy of Sciences||Department of Psychology, University of Chinese Academy of SciencesState Key Laboratory of Brain and Cognitive Sciences, CAS Center for Excellence in Brain Science and Intelligence Technology, Institute of Psychology, Chinese Academy of Sciences||Department of Psychology, University of Chinese Academy of SciencesState Key Laboratory of Brain and Cognitive Sciences, CAS Center for Excellence in Brain Science and Intelligence Technology, Institute of Psychology, Chinese Academy of Sciences||Department of Psychology, University of Chinese Academy of SciencesState Key Laboratory of Brain and Cognitive Sciences, CAS Center for Excellence in Brain Science and Intelligence Technology, Institute of Psychology, Chinese Academy of Sciences||Department of Psychology, University of Chinese Academy of Sciences
生物科学理论、生物科学方法生物科学现状、生物科学发展生物科学研究方法、生物科学研究技术
multisensory integrationbiological motioncortical entrainmentcortical trackingneural oscillations
Wang Ying,Shen Li,Jiang Yi,Tian Yuhao,Li Shuo.Hierarchical cortical entrainment orchestrates the multisensory processing of biological motion[EB/OL].(2025-03-28)[2025-08-02].https://www.biorxiv.org/content/10.1101/2024.04.23.590751.点此复制
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