Frontal theta brain activity varies as a function of surgical experience and task error.
Frontal theta brain activity varies as a function of surgical experience and task error.
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DOI：
10.1136/bmjsit-2020-000040
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发表时间：
2020
期刊：
影响因子：
--
通讯作者：
Mushtaq F
中科院分区：
文献类型：
--
作者：
Balkhoyor AM;Awais M;Biyani S;Schaefer A;Craddock M;Jones O;Manogue M;Mon-Williams MA;Mushtaq F
对外科专业知识的调查几乎完全集中在明显的行为特征上，很少考虑潜在的神经过程。神经成像技术的最新进展，例如无线、可穿戴的头皮记录脑电图（EEG），允许深入了解控制性能的神经过程。我们使用头皮记录的EEG检查是否可以根据被称为额叶θ的振荡脑活动信号来区分外科专业知识和任务表现-认知控制过程的假定生物标志物。行为和EEG数据采集牙科手术学员1年（n=25）和4年的经验（n=20），而他们进行低和高难度的虚拟现实手术模拟器上的钻孔任务。在4-7 Hz范围内的额叶电极（索引额叶θ）的EEG功率作为经验，任务难度和错误率的函数进行了检查。相对于专家，新手的额叶θ功率更大（p=0.001），但不随任务难度而变化（p=0.15），也不存在经验×难度的相互作用（p=0.87）。大脑-行为相关性显示，在有经验的组中，额叶θ和错误之间存在显著的负相关关系（r=-0.594，p=0.0058），但在新手中没有这种关系。我们发现额叶θ功率区分手术经验，但相关的错误率只有经验丰富的外科医生，而执行困难的任务。这些结果提供了一个新的视角，专业知识和手术性能之间的关系。
Investigations into surgical expertise have almost exclusively focused on overt behavioral characteristics with little consideration of the underlying neural processes. Recent advances in neuroimaging technologies, for example, wireless, wearable scalp-recorded electroencephalography (EEG), allow an insight into the neural processes governing performance. We used scalp-recorded EEG to examine whether surgical expertise and task performance could be differentiated according to an oscillatory brain activity signal known as frontal theta—a putative biomarker for cognitive control processes. Behavioral and EEG data were acquired from dental surgery trainees with 1 year (n=25) and 4 years of experience (n=20) while they performed low and high difficulty drilling tasks on a virtual reality surgical simulator. EEG power in the 4–7 Hz range in frontal electrodes (indexing frontal theta) was examined as a function of experience, task difficulty and error rate. Frontal theta power was greater for novices relative to experts (p=0.001), but did not vary according to task difficulty (p=0.15) and there was no Experience × Difficulty interaction (p=0.87). Brain–behavior correlations revealed a significant negative relationship between frontal theta and error in the experienced group for the difficult task (r=−0.594, p=0.0058), but no such relationship emerged for novices. We find frontal theta power differentiates between surgical experiences but correlates only with error rates for experienced surgeons while performing difficult tasks. These results provide a novel perspective on the relationship between expertise and surgical performance.
影响因子：
2.9
作者：
Kok E;De Bruin AB;van Geel K;Gegenfurtner A;Heyligers I;Sorger B
通讯作者：
Sorger B