认知负荷训练可提高真实手术任务中相似条件下的表现。
Training with cognitive load improves performance under similar conditions in a real surgical task.
机构信息
Department of Surgery, Baylor University Medical Center at Dallas, Dallas, TX, USA.
Department of Surgery, Baylor University Medical Center at Dallas, Dallas, TX, USA.
出版信息
Am J Surg. 2020 Sep;220(3):620-629. doi: 10.1016/j.amjsurg.2020.02.002. Epub 2020 Feb 10.
BACKGROUND
Enhancing cognitive load while performing a bimanual surgical task affects performance. Whether repeated training under this condition could benefit performance in an operating room was tested using a virtual reality simulator with cognitive load applied through two-digit math multiplication questions.
METHOD
11 subjects were randomized to Control, VR and VR + CL groups. After a pre-test, VR and VR + CL groups repeated the peg transfer task 150 times over 15 sessions with cognitive load applied only for the last 100 trials. After training, all groups took a post-test and two weeks later the retention test with and without cognitive load and the transfer task on a pig intestine of 150 cm long under cognitive load.
RESULTS AND CONCLUSION
Mixed ANOVA analysis showed significant differences between the control and VR and VR + CL groups (p = 0.013, p = 0.009) but no differences between the VR + CL and the VR groups (p = 1.0). GOALS bimanual dexterity score on transfer test show that VR + CL group outperformed both Control and VR groups (p = 0.016, p = 0.03). Training under cognitive load benefitted performance on an actual surgical task under similar conditions.
背景
在执行双手手术任务时增加认知负荷会影响表现。通过在虚拟现实模拟器上应用认知负荷（通过两位数乘法问题）来测试在这种情况下重复训练是否可以使手术室中的表现受益。
方法
将 11 名受试者随机分为对照组、VR 组和 VR+CL 组。在预测试后，VR 组和 VR+CL 组在 15 个会话中重复进行了 150 次 peg 转移任务，仅在最后 100 次试验中应用认知负荷。训练后，所有组均进行了后测试，两周后进行了保留测试，包括有认知负荷和无认知负荷的测试，以及在认知负荷下对 150cm 长的猪肠进行转移任务的测试。
结果与结论
混合方差分析显示，对照组和 VR 组以及 VR+CL 组之间存在显著差异（p=0.013，p=0.009），但 VR+CL 组和 VR 组之间无差异（p=1.0）。转移测试的 GOALS 双手灵巧度评分显示，VR+CL 组优于对照组和 VR 组（p=0.016，p=0.03）。在类似条件下，在认知负荷下进行训练有助于实际手术任务的表现。
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