Congruency monitoring of action occurs in individuals with relevant motor experience while observing actions. However, it remains unclear whether congruency monitoring can occur at the motor level and the extent to which expertise contributes. Here, we examined the behavioral performance and electrophysiological brain activity of individuals with and without domain-specific expertise when judging the action congruency of occluded video clips of a snowboard halfpipe trick and normal walking. For the halfpipe trick, experts exhibited better task performance and greater midline theta oscillations before possible incongruency compared with controls. Source reconstruction for the theta oscillation revealed a stronger activation in the middle and superior frontal gyrus for experts in response to incongruency compared with controls. Incongruent halfpipe actions elicited a higher N400 amplitude in experts compared with congruent actions, while no such differences were observed in controls. Source reconstruction revealed the activation in the board frontal regions and middle temporal gyrus for experts. These findings suggest that congruency monitoring can occur at the motor level during action observations and is modulated by individual expertise. The modulation of expertise reflects in the special N400 effect and midline theta oscillation.

中文翻译：

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在运动水平的动作观察期间，专业知识会影响一致性监测

动作的一致性监测发生在具有相关运动经验的个体中，同时观察动作。然而，目前尚不清楚是否可以在运动水平上进行一致性监测，以及专业知识的贡献程度。在这里，我们在判断滑雪板半管技巧和正常行走的遮挡视频剪辑的动作一致性时，检查了具有和不具有特定领域专业知识的个人的行为表现和电生理大脑活动。对于半管技巧，与对照组相比，专家在可能出现不一致之前表现出更好的任务表现和更大的中线 theta 振荡。θ 振荡的源重建显示，与对照组相比，专家在额中回和上回的激活更强，以应对不一致。与一致的动作相比，不一致的半管动作在专家中引起了更高的 N400 振幅，而在对照组中没有观察到这种差异。源重建揭示了专家在板额叶区域和颞中回的激活。这些发现表明，一致性监测可以在动作观察期间发生在运动水平，并受个人专业知识的调节。专业知识的调制反映在特殊的 N400 效应和中线 theta 振荡中。这些发现表明，一致性监测可以在动作观察期间发生在运动水平，并受个人专业知识的调节。专业知识的调制反映在特殊的 N400 效应和中线 theta 振荡中。这些发现表明，一致性监测可以在动作观察期间发生在运动水平，并受个人专业知识的调节。专业知识的调制反映在特殊的 N400 效应和中线 theta 振荡中。