速度与损伤：利用选择性反馈调节腹腔镜模拟器性能
Speed versus damage: using selective feedback to modulate laparoscopic simulator performance.
作者信息
Kengen Bas, IJgosse Wouter M, van Goor Harry, Luursema Jan-Maarten
机构信息
Department of Surgery, Radboud University Medical Center, Geert Grooteplein zuid 10, Nijmegen, 6525 GA, Gelderland, The Netherlands.
, PO Box 9101 (960), Nijmegen, 6500 HB, The Netherlands.
出版信息
BMC Med Educ. 2021 Jun 29;21(1):361. doi: 10.1186/s12909-021-02789-3.
BACKGROUND
Adaptive training is an approach in which training variables change with the needs and traits of individual trainees. It has potential to mitigate the effect of personality traits such as impulsiveness on surgical performance. Selective performance feedback is one way to implement adaptive training. This paper investigates whether selective feedback can direct performance of trainees of either high- or low impulsiveness.
METHODS
A total of 83 inexperienced medical students of known impulsiveness performed a four-session laparoscopic training course on a Virtual Reality Simulator. They performed two identical series of tasks every session. During one series of tasks they received performance feedback on duration and during the other series they received feedback on damage. Performance parameters (duration and damage) were compared between the two series of tasks to assess whether selective performance feedback can be used to steer emphasis in performance. To assess the effectiveness of selective feedback for people of high- or low impulsiveness, the difference in performance between the two series for both duration and damage was also assessed.
RESULTS
Participants were faster when given performance feedback for speed for all exercises in all sessions (average z-value = - 4.14, all p values < .05). Also, they performed better on damage control when given performance feedback for damage in all tasks and during all sessions except for one (average z-value = - 4.19, all but one p value < .05). Impulsiveness did not impact the effectiveness of selective feedback.
CONCLUSION
Selective feedback on either duration or damage can be used to improve performance for the variable that the trainee receives feedback on. Trainee impulsiveness did not modulate this effect. Selective feedback can be used to steer training focus in adaptive training systems and can mitigate the negative effects of impulsiveness on damage control.
背景
适应性训练是一种训练变量根据个体受训者的需求和特质而变化的方法。它有可能减轻冲动等人格特质对外科手术表现的影响。选择性绩效反馈是实施适应性训练的一种方式。本文研究选择性反馈是否能指导高冲动性或低冲动性受训者的表现。
方法
共有83名已知冲动性的无经验医学生在虚拟现实模拟器上参加了为期四节的腹腔镜训练课程。他们每节课程都执行两个相同系列的任务。在其中一个系列任务中，他们收到关于时长的绩效反馈，而在另一个系列任务中，他们收到关于损伤的反馈。比较两个系列任务之间的绩效参数（时长和损伤），以评估选择性绩效反馈是否可用于引导表现重点。为评估选择性反馈对高冲动性或低冲动性人群的有效性，还评估了两个系列在时长和损伤方面的表现差异。
结果
在所有课程的所有练习中，当给予速度方面的绩效反馈时，参与者完成得更快（平均z值 = -4.14，所有p值 < .05）。此外，在所有任务和除一节课程外的所有课程中，当给予损伤方面的绩效反馈时，他们在损伤控制方面表现更好（平均z值 = -4.19，除一个p值外所有p值 < .05）。冲动性并未影响选择性反馈的有效性。
结论
关于时长或损伤的选择性反馈可用于提高受训者收到反馈的变量的表现。受训者的冲动性并未调节这种效果。选择性反馈可用于在适应性训练系统中引导训练重点，并可减轻冲动性对损伤控制的负面影响。
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