| 身体拥有感错觉对疼痛的影响及其作用机制 |
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| 引用本文： | 顾丽佳,宫文潇,张静,陈巍,郭建友. 身体拥有感错觉对疼痛的影响及其作用机制[J]. 心理科学进展, 2022, 30(11): 2518-2528. DOI: 10.3724/SP.J.1042.2022.02518 |
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| 作者姓名： | 顾丽佳 宫文潇 张静 陈巍 郭建友 |
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| 作者单位： | 1.绍兴文理学院心理学系;大脑、心智与教育研究中心, 浙江 绍兴 321000;2.北京大学心理与认知科学学院, 北京 1008713.杭州电子科技大学心理健康研究所, 杭州 310018;4.德累斯顿工业大学心理学系, 德累斯顿 德国;5.同济大学心理学系, 上海 200092;6.中国科学院心理健康重点实验室(中国科学院心理研究所), 北京 100101;7.中国科学院大学心理学系, 北京 100049 |
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| 基金项目： | 浙江省哲学社会科学规划课题(22NDQN274YB);浙江省教育厅科研项目(Y202043088);绍兴文理学院科研启动基金项目(20206008);国家社科基金一般项目(21BZX005) |
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| 摘 要： | 身体拥有感错觉以多通道的感官整合为基础,包括视觉-触觉、视觉-本体感觉、触觉-本体感觉、视觉-内感受的整合等。来自实验室急性痛以及慢性痛的大量结果表明拥有感错觉可产生镇痛作用。身体部位尺寸大小、肢体透明度等相关影响因素也逐渐得到揭示。拥有感错觉影响疼痛的机制与身体表征的改变有关,该过程可能涉及“身体网络”与“疼痛网络”间的连接,其中后顶叶皮层可能有重要作用。未来研究应更为深入地探索拥有感错觉范式以考察不同因素对疼痛的影响;在现有多感官整合的范式中重视内感受的作用;考察拥有感错觉改变疼痛的认知神经机制;区分急、慢性痛条件下以及不同慢性痛类型中拥有感错觉对疼痛的不同影响。
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| 关 键 词： | 身体拥有感 橡胶手错觉 疼痛 多感官整合 注视镇痛 |
| 收稿时间： | 2021-12-24 |
The influence of body ownership illusion on pain and its potential mechanisms |
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| GU Lijia,GONG Wenxiao,ZHANG Jing,CHEN Wei,GUO Jianyou. The influence of body ownership illusion on pain and its potential mechanisms[J]. Advances In Psychological Science, 2022, 30(11): 2518-2528. DOI: 10.3724/SP.J.1042.2022.02518 |
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| Authors: | GU Lijia GONG Wenxiao ZHANG Jing CHEN Wei GUO Jianyou |
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| Abstract: | The body ownership illusion (BOI) is associated with multisensory integration, including visuo-tactile, visuo- proprioceptive, tactile-proprioceptive, visual-interoceptive integration and so forth. A series of studies have demonstrated that BOI may be able to reduce acute and chronic pain. There are several key factors that influence the induction of subjective feeling of ownership over the fake body parts, such as synchronicity of multisensory integration, space between the real and fake body parts, the physical appearance of the fake body parts, a first-person perspective. These factors have also been proved to be critical in the effect of analgesia of BOI. In addition, BOI can be modulated by the perceived body/limb size, transparency of the body/limb and so on. The influence of these factors on pain is complex, which differs between healthy subjects and patients with chronic pain, various chronic pain states and the relevant body perception disturbances. Altered body representation represents one of the mechanisms associated with the analgesic impact of BOI. The neural mechanism of BOI on pain, however, still remains unknown, we propose that it is associated with cross-modal mirror therapy and visual analgesia. Thus based on the neural mechanisms of these two phenomenon, we suggest that the “body matrix” and the “pain matrix” might be involved. The concept of “body matrix” was proposed to interpret the induction of the sense of ownership and the complex relationship between representation of the body in the brain and the integrity of the body itself, which includes the insula and posterior parietal cortex. It processes and further integrates the sensory stimuli like visual, tactile, proprioceptive, interoceptive signals from the environment. To be specific, the induction of the sense of ownership could first activate the body matrix and then suppress the pain matrix in acute pain. In chronic pain, the analgesic effect may be related with the reversal of the cortical representation and functional disturbances. Moreover, the posterior parietal cortex may play a key role in these integrations, which needs to be further validated in fine-designed protocols. In summary, most of the researches support a link between embodied illusion and pain disorders, yet several studies didn’t find the analgesic effect of BOI. It might result from the experimental procedure that the artificial/fake hand was covered to avoid visual feedback, or may due to differences in the experimental settings of the control group. Future research topics may include the following aspects. Firstly, future research might want to consider more about the role of interoception in multisensory integration paradigms as exteroceptive signals may not suitable in patients with allodynia who are extremely sensitive to tactile stimuli. The usage of interoception enables the induction of sense of ownership without any tactile stimuli. Thus taking into account of interoception allows a better understanding of the contribution of interoception in bodily illusion and in pain modulation. Secondly, future studies need to identify the cognitive mechanism and neural substrates underlying the effect of BOI on pain. For instance, whether BOI analgesic effect has shared neural mechanisms with mirror therapy and visual analgesia needs further interrogation. Thirdly, how BOI affects pain varies differently in acute pain and chronic pain, and in different chronic pain conditions. Future research needs to shed further light on the identification of this complex phenomenon. Finally, robust and new paradigms of body ownership illusion are needed to further explore the full potential of BOI to modulate pain and to be applied in pain management in clinical populations. |
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| Keywords: | body ownership rubber hand illusion pain multisensory integration visual analgesia |
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