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首页> 外文期刊>Surgical Endoscopy >Assessing the benefits of 'gaze-down' display location in complex tasks.
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Assessing the benefits of 'gaze-down' display location in complex tasks.

机译：评估“凝视”显示位置在复杂任务中的好处。

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摘要

BACKGROUND: Location of the image display is one of several factors that influence perceptual processing and endoscopic manipulation in minimal access surgery. Previous studies have proved the benefits of the gaze-down stance, as compared with the conventional gaze-up stance. This study investigates the effect of the gaze-down stance on the performance of a task with varying manipulative and perceptual demands. METHODS: The participants in this study were 20 medical students. Each student performed endoscopic touching tasks under standard conditions using the Dundee Projection System (DPS) display, positioned to provide gaze-up and gaze-down stances. To increase task complexity, two kinds of manual coordination (unilateral vs bilateral) and three endoscope positions (different positions of misalignment) were used. The outcome measures were task execution time and number of errors. RESULTS: Overall, the gaze-down stance reduced time and errors, as compared with the gaze-up display. However, the benefit obtained from the gaze-down stance was more significant in the more difficult tasks (bilateral task and 90 degrees misalignments). CONCLUSIONS: The gaze-down stance reduces task time and errors, as compared with a gaze-up stance. The reduction in time and errors is more appreciable as task complexity increases.
机译：背景：图像显示的位置是影响微创手术中知觉处理和内窥镜操作的几个因素之一。先前的研究已经证明，与传统的凝视姿势相比，凝视姿势的好处。这项研究调查了凝视姿势对具有不同操纵和感知要求的任务执行的影响。方法：本研究的参与者为20名医学生。每个学生都使用邓迪投影系统（DPS）显示器在标准条件下执行内窥镜触摸任务，该显示器的位置可提供凝视和凝视的姿势。为了增加任务的复杂性，使用了两种手动协调（单侧或双侧）和三个内窥镜位置（不同的未对准位置）。结果度量是任务执行时间和错误数量。结果：总的来说，与凝视显示相比，凝视姿势减少了时间和错误。但是，从凝视姿势获得的收益在更困难的任务（双向任务和90度错位）中更为明显。结论：与凝视姿势相比，凝视姿势减少了工作时间和错误。随着任务复杂性的增加，时间和错误的减少更加明显。

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