ISSN 0439-755X
CN 11-1911/B
主办:中国心理学会
   中国科学院心理研究所
出版:科学出版社

心理学报 ›› 2026, Vol. 58 ›› Issue (3): 467-479.doi: 10.3724/SP.J.1041.2026.0467 cstr: 32110.14.2026.0467

• 研究报告 • 上一篇    下一篇

行为振荡的Theta节律存在于跨通道刺激冲突与反应冲突加工中

许红慧1,2,3, 徐怡冉4, 杨国春5, 南威治6, 刘勋1,2   

  1. 1中国科学院心理研究所行为科学重点实验室, 北京 100101;
    2中国科学院大学心理学系, 北京 100049;
    3中南民族大学教育学院, 武汉 430074;
    4湖北艺术职业学院文化服务与管理学院, 武汉 430079;
    5广东省智能科学与技术研究院, 珠海 519031;
    6广州大学教育学院心理系/脑与认知科学中心, 广州 510006
  • 收稿日期:2025-05-15 发布日期:2025-12-26 出版日期:2026-03-25
  • 通讯作者: 刘勋, E-mail: liux@psych.ac.cn
  • 基金资助:
    国家自然科学基金中德重大国际合作项目(62061136001/DFG TRR-169, project B4)、中南民族大学中央高校基本科研业务费专项资金(37301/CZQ25016)资助

Behavioral theta oscillations in cross-modal stimulus conflict and response conflict processing

XU Honghui1,2,3, XU Yiran4, YANG Guochun5, NAN Weizhi6, LIU Xun1,2   

  1. 1CAS Key Laboratory of Behavioral Science, Institute of Psychology, Beijing 100101, China;
    2Department of Psychology, University of Chinese Academy of Sciences, Beijing 100040, China;
    3School of Education, South-Central Minzu University, Wuhan 430074, China;
    4School of Cultural Services and Management, Hubei Vocational College of Art, Wuhan 430079, China;
    5Guangdong Institute of Intelligence Science and Technology, Hengqin, Zhuhai 519031, Guangdong, China;
    6Department of Psychology and Center for Brain and Cognitive Sciences, School of Education, Guangzhou University, Guangzhou 510006, China
  • Received:2025-05-15 Online:2025-12-26 Published:2026-03-25

摘要: Theta振荡与认知控制密切相关。以往研究发现theta振荡参与跨通道刺激冲突与反应冲突的加工, 然而, theta振荡与跨通道刺激冲突和反应冲突程度之间的关系目前仍不清楚。本研究采用视听Stroop任务, 结合具有高时间分辨率的行为采样方法对该问题进行探究。结果表明大脑对任务相关通道刺激的加工节律受任务无关通道刺激的影响。当任务无关刺激与任务相关刺激相同或冲突时, 大脑对任务相关刺激的加工节律为theta; 当任务无关刺激为中性刺激时, 大脑则以alpha节律加工任务相关刺激。此外, 研究发现, 在听觉任务中, 反应冲突幅度在视听刺激呈现时间间隔(Stimulus Onset Asynchrony, SOA)上表现出theta振荡; 在视觉任务中, 刺激冲突幅度在SOA上表现出theta振荡。当前结果表明冲突加工在行为上表现出节律性, 揭示了theta振荡与冲突幅度之间的关系, 将注意的节律性理论扩展到认知控制的冲突加工领域。

关键词: 跨通道, 刺激冲突, 反应冲突, 行为振荡, Theta

Abstract: Theta oscillations are closely associated with cognitive control. Accumulating evidence indicates their involvement in processing both cross-modal stimulus conflict and response conflict. However, the relationship between theta oscillations and the magnitude of these conflicts remains unclear. Research on behavioral oscillations, which shows that theta rhythms are linked to periodic patterns in behavioral performance, provides a novel perspective for investigating how theta oscillations are related to the magnitude of cross-modal stimulus conflict and response conflict.
To address this issue, we used an audiovisual Stroop task with a 2-to-1 stimulus-response mapping and a time-resolved behavioral approach. Given previous evidence that sensory modality modulates theta oscillations during cross-modal stimulus conflict and response conflict processing, we designed two distinct tasks. In Experiment 1 (N = 43), participants responded to auditory stimuli while ignoring visual distractors (auditory task). In Experiment 2 (N = 40), participants responded to visual stimuli while ignoring auditory distractors (visual task). This design allowed us to investigate the relationship between theta oscillations and the magnitude of cross-modal stimulus and response conflicts in the auditory and visual tasks, respectively.
The results demonstrated that the rhythmic processing of task-relevant stimuli was modulated by task-irrelevant stimuli. When the task-irrelevant stimuli were either the same as or different from the task-relevant stimuli (including both stimulus and response incongruency), response times exhibited rhythmic fluctuations in the theta band (4~7.5 Hz). In contrast, when task-irrelevant stimuli were neutral, the processing was characterized by oscillations in the alpha band (9.4~10 Hz). Furthermore, we found that the magnitude of the cross-modal response conflict itself fluctuated rhythmically at a theta frequency (3.8 Hz) in the auditory task, whereas the magnitude of the cross-modal stimulus conflict fluctuated rhythmically at a theta frequency (5.6 Hz) in the visual task.
In summary, the present study demonstrates that cognitive control processes exhibit theta oscillations at the behavioral level, which directly modulate the magnitude of cross-modal stimulus conflict and response conflict. These findings elucidate the relationship between theta oscillations and conflict magnitude, and extend the rhythmic theory of attention to the domain of cognitive control in conflict processing.

Key words: cross-modal, stimulus conflict, response conflict, behavioral oscillation, theta

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