Effect of the Visual Illusion on Stepping-Over Action and Its Association with Gaze Behavior.

IF 1.4 4区 心理学 Q4 PSYCHOLOGY, EXPERIMENTAL Perceptual and Motor Skills Pub Date : 2024-04-01 Epub Date: 2024-01-28 DOI:10.1177/00315125241230194
Ryota Sakurai, Kentaro Kodama, Yu Ozawa, Kimi Estela Kobayashi-Cuya
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Abstract

An adequate foot clearance height while stepping over an obstacle is important for safety in daily life. In the present study, we examined whether visual illusions affect foot clearance during a stepping-over action, and whether this is further influenced by gaze behavior. Twelve participants stepped over an obstacle placed four meters away under conditions of three different obstacle characteristics: white, horizontal, or vertical lines. We measured the participants' foot clearances during the step-over action and their gaze behavior during the approaching phase. Participants stepped significantly higher over the obstacles in the vertical lines (illusion) condition. The duration of gaze fixation on the obstacle positively correlated with increased foot clearance in the vertical condition, suggesting that the effect of the visual illusion on foot clearance was enhanced by prolonged gaze fixation. Conversely, prolonged fixation negatively correlated with foot clearance in the white (control) condition, implying that a cautious perception of an obstacle may contribute to efficient stepping-over action.

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视错觉对跨步动作的影响及其与注视行为的关联
在跨过障碍物时,足够的脚部间隙高度对于日常生活中的安全非常重要。在本研究中,我们考察了视觉错觉是否会影响跨过障碍物时的脚部间隙,以及这种影响是否会受到注视行为的进一步影响。12 名参与者在白色、水平或垂直线三种不同障碍物特征的条件下跨过了 4 米外的障碍物。我们测量了参与者在跨过障碍物时的脚步间距,以及他们在接近障碍物阶段的注视行为。在垂直线(错觉)条件下,参与者跨过障碍物的距离明显更高。在垂直条件下,凝视障碍物的持续时间与脚部间隙的增加呈正相关,这表明视觉错觉对脚部间隙的影响会因凝视时间的延长而增强。相反,在白色(对照组)条件下,长时间凝视障碍物与脚部间隙呈负相关,这意味着对障碍物的谨慎感知可能有助于有效地跨过障碍物。
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来源期刊
Perceptual and Motor Skills
Perceptual and Motor Skills PSYCHOLOGY, EXPERIMENTAL-
CiteScore
2.90
自引率
6.20%
发文量
110
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