Department of Medical Education, University of Michigan Medical School, G1105 Towsley Center, Ann Arbor, MI 48109-5201, USA.
Surgery. 2010 May;147(5):631-9. doi: 10.1016/j.surg.2009.10.071.
This study aimed to quantify learner reactions manifesting from a realistic contextual stressor while training with a laparoscopic simulator, and to identify learner-derived stress-modifying behaviors. Stress factors are known to affect cognitive and psychomotor performance. Simulation-based medical training typically occurs in environments that are relatively stress free compared with the applied context. Training is most effective when it occurs in a highly faithful context, so the inclusion of typical clinical stressors in simulated laparoscopic learning environments may be beneficial.
Preclinical medical students (N = 27) completed tasks using a laparoscopic simulator under the following 2 conditions: faculty direct observation (stressor) and unobserved (no stressor). The data included simulator performance, blood pressure, real-time heart rates, videotaped behavior, and pre/post surveys of latent anxiety and stress factors associated with participating in the research (eg, STAI 9).
Physiologic and behavioral manifestations of stress were observed for all participants during the stressor condition and during poor performance on simulator tasks. Stress was highest during periods of poor performance under the stressor condition. Focusing on the task itself mitigated stress reactions and improved performance on the simulator.
Stress reactions can be induced in a laboratory setting where simulation-based training occurs. Stressors imposed on the learner during simulation-based training may help support the acquisition of stress management skills that are necessary in the applied clinical setting. A ramped-up sequence of acquiring technical skills and clinical decision making, followed by stress management techniques, may lead to a more efficient transfer of learning from the simulated context to the clinical area.
本研究旨在量化学习者在使用腹腔镜模拟器进行培训时,对现实环境压力源产生的反应,并确定学习者衍生的压力调节行为。众所周知,压力因素会影响认知和运动表现。与应用环境相比,基于模拟的医学培训通常发生在相对无压力的环境中。当培训在高度逼真的环境中进行时,培训效果最佳,因此在模拟腹腔镜学习环境中纳入典型的临床压力源可能是有益的。
27 名临床前医学生在以下两种情况下使用腹腔镜模拟器完成任务:教师直接观察(压力源)和无人观察(无压力源)。数据包括模拟器性能、血压、实时心率、录像行为以及参与研究的潜在焦虑和压力因素的问卷调查(例如,STAI 9)。
在压力源条件下和模拟器任务表现不佳期间,所有参与者都观察到了生理和行为上的压力反应。在压力源条件下,表现不佳时压力最大。专注于任务本身可以减轻压力反应并提高模拟器的性能。
可以在进行基于模拟的培训的实验室环境中引起应激反应。在基于模拟的培训中对学习者施加压力源可能有助于支持在应用临床环境中获得必要的压力管理技能。逐步增加获取技术技能和临床决策的顺序,然后是压力管理技术,可能会导致从模拟环境到临床领域的学习更有效地转移。