Difference in Interoception between Long-Distance Runners and Sprinters: An Event-related Potential Study
Difference in Interoception between Long-Distance Runners and Sprinters: An Event-related Potential Study
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DOI：
10.1249/mss.0000000000002248
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发表时间：
2020-06-01
期刊：
影响因子：
--
通讯作者：
Masaki, Hiroaki
中科院分区：
文献类型：
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作者：
Hirao, Takahiro;Vogt, Tobias;Masaki, Hiroaki
内感受是对身体生理状态的一种感觉。内感受是由脑岛皮层处理生理信息产生的，在竞技运动中发挥着重要作用。本研究旨在通过记录岛叶皮层产生的刺激前负性（SPN），揭示长跑运动员和短跑运动员之间的内感受能力差异及其神经相关性。基于之前的研究结果，我们预测长跑运动员比短跑运动员表现出更好的内感受能力和更大的spn。方法采用问卷调查法和心跳计数法分别对长跑运动员和短跑运动员的内感受的敏感性和准确性进行评价。在执行时间估计任务期间，我们记录了spn，参与者通过按下按钮来估计3秒。结果问卷调查结果显示，短跑运动员比长跑运动员表现出更高的与自身身体注意力控制相关的内感受能力。与长跑运动员相比，短跑运动员在左中央顶叶区域也显示出更大的SPN。结论与我们的预测相反，短跑运动员比长跑运动员表现出更强的内感受能力和更大的岛叶皮层活动。这些结果表明，与长跑运动员相比，短跑运动员可能更容易受到内部身体信号的影响，表现出更大的前脑岛激活。
PurposeInteroception is a sense of the physiological state of one's body. Interoception that is generated by processing physiological information in the insular cortex plays an important role in achieving optimal performance in competitive sports. This study aimed to reveal the difference in interoceptive ability between long-distance runners and sprinters and its neural correlates by recording the stimulus-preceding negativity (SPN) that is generated from the insular cortex. Based on previous findings, we predicted that long-distance runners would show better interoceptive ability and larger SPNs compared with sprinters. MethodWe used a questionnaire and a heartbeat counting task to evaluate the interoceptive sensitivity and accuracy, respectively, of both long-distance runners and sprinters. We recorded SPNs during the execution of a time estimation task where participants estimate 3 s by pressing a button. ResultsResults of the questionnaire revealed that sprinters exhibited a higher interoceptive ability associated with attention control of their own bodies than did long-distance runners. Sprinters also showed a larger SPN over the left centroparietal regions compared with long-distance runners. ConclusionIn contrast to our prediction, sprinters exhibited a superior interoceptive ability and a greater activity of the insular cortex relative to long-distance runners. These results suggest that sprinters might be more susceptible to their internal bodily signals compared with long-distance runners, exhibiting greater activation of the anterior insula.