Spatial representation during locomotion : insight from laterality in spatial cognition

最近的研究表明，认知完整的个体在穿过狭窄的门口时会经历频繁的碰撞。这种方向性偏差归因于伪神经性（一种认知因素），其中个体轻微忽略了右半球空间。本研究旨在探讨踏足（运动因素）和优势眼（视觉因素）对定向偏误的影响以及假神经节的参与。参与者穿过一个相对较宽的门口的感知中心。上身中点与门口中心的偏差大小表明，用于穿过门口的脚对方向偏差有很大的影响。一只手的运动和对门一侧的内隐注意都引起了身体的对侧偏离。右优势眼的参与者在优势眼关闭时穿过光圈时受到影响，这表明他们依赖于通过优势眼获得的视觉信息。我们的结论是，在行走过程中，身体的方向偏差可能是由视觉，运动和认知因素的组合。关于运动因素的参与，结果是不一致的预测的基础上的pseudonedonesthetics，但与预测的基础上的注意线索假说是一致的。

Recent studies indicate that cognitively intact individuals experience frequent rightward collisions while walking through narrow doorways. Such directional bias is attributed to pseudoneglect(a cognitive factor), wherein individuals slightly neglect the right hemispace. The present study is an investigation of the impact of the stepping foot(a motor factor) and dominant eye(visual factor) on the directional bias and of the involvement of pseudoneglect. Participants walked through the perceived center of a relatively wide doorway. The magnitude of the deviation of the upper-body midpoint from the center of the doorway demonstrated that the foot used to step through a doorway had a very strong influence on the directional bias. Both the movement of one hand and covert attention to one side of the door caused contralateral deviation of the body. The participants of the right dominant eye were affected when crossing the aperture while the dominant eye was closed, suggesting that they relied on the visual information obtained through the dominant eye. We concluded that the directional bias in the body during walking could result from a combination of visual, motor and cognitive factors. Regarding the involvement of the motor factors, the results were inconsistent with the predictions based on pseudoneglect but were consistent with predictions based on an attentional cueing hypothesis.