背景:生物运动的感知需要对人类运动的时空动力学进行准确的预测。发育协调障碍(DCD)的研究表明,准确的运动预测存在缺陷,提出了一个问题,是否不仅仅是行动执行,但在这种疾病中,动作感知也会受到干扰。
目的:通过将神经反应与有和没有DCD的儿童的明显生物运动的观察结果进行比较来检查动作感知。
方法:33名具有DCD的参与者和33名没有DCD的参与者,基于年龄匹配(13.0±2.0),性和书写手,观察到的静态身体姿势序列显示流畅或非流畅的运动,其中只有流畅的状态描绘了明显的生物运动。使用最近验证的结合EEG频率标记和表观生物运动的范例(Cracco等人。,2023),生物运动的感知与个体身体姿势的感知形成对比。
■患有DCD的儿童与通常发育中的儿童相比,对表观生物运动的敏感性并未降低。然而,DCD组的大脑对重复的视觉刺激反应减弱,表明该组中感知域的预测处理发生了变化。提出了进一步研究DCD中生物运动知觉的建议。
BACKGROUND: The perception of biological motion requires accurate prediction of the spatiotemporal dynamics of human movement. Research on Developmental Coordination Disorder (DCD) suggests deficits in accurate motor prediction, raising the question whether not just action execution, but also action perception is perturbed in this disorder.
OBJECTIVE: To examine action perception by comparing the neural response to the observation of apparent biological motion in children with and without DCD.
METHODS: Thirty-three participants with and 33 without DCD, matched based on age (13.0 ± 2.0), sex and writing hand, observed sequences of static body postures that showed either fluent or non-fluent motion, in which only the fluent condition depicted apparent biological motion. Using a recently validated paradigm combining EEG frequency tagging and apparent biological motion (Cracco et al., 2023), the perception of biological motion was contrasted with the perception of individual body postures.
UNASSIGNED: Children with DCD did not show reduced sensitivity to apparent biological motion compared with typically developing children. However, the DCD group did show a reduced brain response to repetitive visual stimuli, suggesting altered predictive processing in the perceptual domain in this group. Suggestions for further research on biological motion perception in DCD are identified.