Ritsumeikan University, Shiga, Japan.
Hiroshima City University, Hiroshima, Japan.
Exp Brain Res. 2019 Nov;237(11):3047-3058. doi: 10.1007/s00221-019-05650-8. Epub 2019 Sep 17.
In this paper, we analyze the relationship between head and chest movements and gaze direction in both walking and non-walking conditions. In a different approach from existing studies, we aim to analyze behavior when humans intentionally gaze at a certain target from two perspectives: (1) the relationship between gaze and body movements and (2) the effects of walking on body motion. We performed three experiments: fixed target scenes (Experiment 1), moving target scenes (Experiment 2) and more realistic gazing scenes (Experiment 3). The experimental results showed a linear relationship between the head and chest directions and gaze directions regardless of walking, non-walking situations, or target movements, and stronger gaze-head correlations than gaze-chest correlations. Further, we found effects of walking that constrained rotational body movements, and that body parts with larger moments were easily affected by walking. These results suggest that the findings of existing studies in non-walking situations may be applicable to walking situations directly or with simple modifications.
在本文中，我们分析了头部和胸部运动与注视方向在行走和非行走条件下的关系。与现有研究不同的是，我们旨在从两个角度分析人类有意注视某个目标时的行为：（1）注视与身体运动之间的关系，（2）行走对身体运动的影响。我们进行了三个实验：固定目标场景（实验 1）、移动目标场景（实验 2）和更逼真的注视场景（实验 3）。实验结果表明，无论行走、非行走情况或目标运动如何，头部和胸部方向与注视方向之间存在线性关系，并且注视头部的相关性强于注视胸部的相关性。此外，我们发现行走会对旋转身体运动产生约束作用，并且具有较大动量的身体部位更容易受到行走的影响。这些结果表明，在非行走情况下的现有研究结果可能可以直接或通过简单修改应用于行走情况。
