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User Placement of a Visual Aid for Detecting Critical Signals in Fetal-Heart Rate Tracings: A Yoke-Control Study

机译:用户放置的用于在胎儿心率追踪中检测关键信号的视觉辅助工具:一项oke架控制研究

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The present study examined the ability of participants to detect critical signals embedded within dynamicfetal-heart rate (FHR) tracings using a visual aid. Participants inspected tracings for deviations in the FHRunder different levels of heart rate variability. One group was given control over placement of the visualaid. A second yoke-control group monitored the same presentation of critical signals and aid placements butcould not alter the visual aids. In phase 1, student participants placed the aid and in phase 2 theexperimenter placed the aid. Performance was compared to a control group that had no aids. The resultsshowed that no group detected all critical signals but those who placed the aid performed better than thosewho had no aid across all levels of heart rate variability. However, the benefit of the visual aid for the yokecontrolparticipants was limited to the condition where the experimenter placed the aid. These resultssuggest that a visual aid can improve performance, but that it does not completely overcome the challengedetecting critical signals in FHR tracings.
机译:本研究检查了参与者检测动态内嵌的关键信号的能力 使用视觉辅助工具进行胎儿心率(FHR)追踪。参加者检查了示踪物中FHR的偏差 在不同水平下的心率变异性。一组控制视力的位置 援助。第二个轭铁控制组监视了关键信号和辅助装置的相同显示,但是 无法改变视觉辅助。在第1阶段,学生参与者放置了援助物资,在第2阶段, 实验者放置了援助物。将表现与没有助剂的对照组进行比较。结果 表明没有一个小组能检测到所有关键信号,但是那些放置援助物资的人的表现要好于那些人。 在所有水平的心率变异性上都没有帮助的人。但是,视觉辅助对轭架控制的好处 参与者仅限于实验者放置援助物的条件。这些结果 表明视觉辅助可以改善性能,但不能完全克服挑战 在FHR跟踪中检测关键信号。

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