Department of Movement Sciences, Vrije Universiteit Amsterdam, The Netherlands.
J Vis. 2023 Jan 3;23(1):7. doi: 10.1167/jov.23.1.7.
Many activities in daily life do not impose strict requirements on gaze. We investigated gaze when walking up and down staircases within one's own house. We anticipated that using a variety of staircases in different environments and not informing participants that stair climbing was the focus of investigation might provide a description of gaze behavior that is closer to that used in our daily life than doing so under circumstances in which the focus is explicitly and exclusively directed at the stairs. We analyzed several measures, including the order in which participants fixated the steps. We confirmed that people often look at the steps sequentially, but found that they often made fixations back to steps they had already fixated. They also regularly skipped looking at several steps to fixate further ahead. On average, they directed their gaze at about half the steps. They looked further ahead when ascending than when descending staircases. Overall, the results are similar to those found under highly constrained laboratory conditions, although we do report some differences. One such difference is a tendency to fixate fewer steps. Another is that participants fixated steps that were less far ahead when descending staircases. We also introduced some new analyses that may help understand gaze behavior during stair climbing.
日常生活中的许多活动对视点没有严格的要求。我们调查了在自家上下楼梯时的视点。我们预计，在不同环境中使用各种楼梯，并且不告知参与者楼梯攀爬是调查重点，可能会提供更接近日常生活中使用视点的描述，而不是在明确且专门关注楼梯的情况下进行。我们分析了包括参与者注视步骤的顺序在内的几个指标。我们确认人们经常按顺序注视步骤，但发现他们经常会回头注视已经注视过的步骤。他们也经常跳过几步，直接注视更远的前方。平均而言，他们的目光只注视了大约一半的台阶。他们在上楼梯时比下楼梯时看得更远。总的来说，结果与在高度受限的实验室条件下发现的结果相似，尽管我们确实报告了一些差异。一个这样的差异是注视的台阶数量较少。另一个差异是参与者在下楼梯时注视的台阶距离较近。我们还引入了一些新的分析方法，这些方法可能有助于理解楼梯攀爬时的注视行为。
