Liu Sicong, Donaldson Rachel, Subramaniam Ashwin, Palmer Hannah, Champion Cosette D, Cox Morgan L, Appelbaum L Gregory
Duke University, North Carolina,, USA.
J Eye Mov Res. 2021 Mar 10;14(2). doi: 10.16910/jemr.14.2.2.
Expertise in laparoscopic surgery is realized through both manual dexterity and efficient eye movement patterns, creating opportunities to use gaze information in the educational process. To better understand how expert gaze behaviors are acquired through deliberate practice of technical skills, three surgeons were assessed and five novices were trained and assessed in a 5-visit protocol on the Fundamentals of Laparoscopic Surgery peg transfer task. The task was adjusted to have a fixed action sequence to allow recordings of dwell durations based on pre-defined areas of interest (AOIs). Trained novices were shown to reach more than 98% (M = 98.62%, SD = 1.06%) of their behavioral learning plateaus, leading to equivalent behavioral performance to that of surgeons. Despite this equivalence in behavioral performance, surgeons continued to show significantly shorter dwell durations at visual targets of current actions and longer dwell durations at future steps in the action sequence than trained novices (ps ≤ .03, Cohen's ds > 2). This study demonstrates that, while novices can train to match surgeons on behavioral performance, their gaze pattern is still less efficient than that of surgeons, motivating surgical training programs to involve eye tracking technology in their design and evaluation.
腹腔镜手术的专业技能是通过手部灵巧性和高效的眼动模式来实现的,这为在教育过程中利用注视信息创造了机会。为了更好地理解如何通过刻意练习技术技能来获得专家级的注视行为,对三名外科医生进行了评估,并对五名新手进行了培训和评估,采用了一个为期五次访视的腹腔镜手术基础钉转移任务方案。该任务被调整为具有固定的动作序列,以便根据预先定义的感兴趣区域(AOI)记录停留时间。结果显示,经过训练的新手达到了其行为学习平台期的98%以上(M = 98.62%,SD = 1.06%),行为表现与外科医生相当。尽管在行为表现上相当,但与经过训练的新手相比,外科医生在当前动作的视觉目标上的停留时间仍然显著更短,而在动作序列的未来步骤上的停留时间更长(p值≤.03,科恩d值> 2)。这项研究表明,虽然新手可以通过训练在行为表现上与外科医生相匹配,但他们的注视模式仍然不如外科医生高效,这促使外科培训项目在其设计和评估中纳入眼动追踪技术。