Annu Int Conf IEEE Eng Med Biol Soc. 2022 Jul;2022:941-944. doi: 10.1109/EMBC48229.2022.9871175.
Fundamentals of Laparoscopic Surgery (FLS) is a standard education and training module with a set of basic surgical skills. During surgical skill acquisition, novices need to learn from errors due to perturbations in their performance which is one of the basic principles of motor skill acquisition. This study on thirteen healthy novice medical students and nine expert surgeons aimed to capture the brain state during error epochs using multimodal brain imaging by combining functional near-infrared spectroscopy (fNIRS) and electroencephalography (EEG). We performed error-related microstate analysis in the latent space that was found using regularized temporally embedded Canonical Correlation Analysis from fNIRS-EEG recordings during the performance of FLS "suturing and intracorporeal knot-tying" task - the most difficult among the five psychomotor FLS tasks. We found from two-way analysis of variance (ANDVA) with factors, skill level (expert, novice), and microstate type (1-6) that the proportion of the total time spent in microstates in the error epochs was significantly affected by the skill level ( ), microstate type ( ), and the interaction between the skill level and the microstate type ( ). Therefore, our study highlighted the relevance of portable brain imaging to capture error behavior when comparing the skill level during a complex surgical task. Clinical Relevance-This establishes the brain-behavior relationship for monitoring complex surgical motor task errors that differentiated experts from novices.
腹腔镜手术基础（FLS）是一个标准的教育和培训模块，具有一套基本的手术技能。在获得手术技能的过程中，新手需要从他们的表现受到干扰而产生的错误中学习，这是运动技能获得的基本原则之一。本研究针对十三名健康的新手医学生和九名专家外科医生，旨在通过结合功能近红外光谱（fNIRS）和脑电图（EEG），使用多模态脑成像技术，在错误期间捕捉大脑状态。我们在潜在空间中执行了与错误相关的微状态分析，该空间是使用正则化时间嵌入的典型相关分析从 fNIRS-EEG 记录中找到的，这些记录是在执行 FLS“缝合和体腔内打结”任务期间获得的，这是五个心理运动 FLS 任务中最困难的任务之一。我们从具有因素的双向方差分析（ANDVA）中发现，技能水平（专家、新手）和微状态类型（1-6）对错误期间微状态总时间比例的影响显著（）、微状态类型（）以及技能水平和微状态类型之间的相互作用（）。因此，我们的研究强调了便携式脑成像在比较复杂手术任务中的技能水平时捕捉错误行为的相关性。临床意义-这为监测区分专家和新手的复杂手术运动任务错误的脑-行为关系奠定了基础。
