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首页> 外文会议>International Conference on Augmented Cognition >Brain-in-the-Loop Learning Using fNIR and Simulated Virtual Reality Surgical Tasks: Hemodynamic and Behavioral Effects
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Brain-in-the-Loop Learning Using fNIR and Simulated Virtual Reality Surgical Tasks: Hemodynamic and Behavioral Effects

机译：使用FNIR和模​​拟虚拟现实手术任务的脑卒中循环学习：血流动力学和行为效应

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摘要

Functional near infrared spectroscopy (fNIR) is a noninvasive, portable optical imaging tool to monitor changes in hemodynamic responses (i.e., oxygenated hemoglobin (HbO)) within the prefrontal cortex (PFC) in response to sensory, motor or cognitive activation. We used fNIR for monitoring PFC activation during learning of simulated laparoscopic surgical tasks throughout 4 days of training and testing. Blocked (BLK) and random (RND) practice orders were used to test the practice schedule effect on behavioral, hemodynamic responses and relative neural efficiency (EFF_(rel-neural)) measures during transfer. Left and right PFC for both tasks showed significant differences with RND using less HbO than BLK. Cognitive workload showed RND exhibiting high EFF_(rel-neural) across the PFC for the coordination task while the more difficult cholecystectomy task showed EFF_(rel-neural) differences only in the left PFC. Use of brain activation, behavioral and EFF_(rel-neural) measures can provide a more accurate depiction of the generalization or transfer of learning.
机译：近红外光谱（FNIR）是一种非侵入性的便携式光学成像工具，用于监测前额叶皮质（PFC）内的血流动力学反应（即含氧血红蛋白（HBO））的变化，响应于感官，电动机或认知激活。我们使用FNIR在学习在培训和测试的4天的模拟腹腔镜手术任务期间监测PFC激活。被封锁（BLK）和随机（RND）练习订单用于测试在转移过程中对行为，血液动力学响应和相对神经效率（Eff_（Rel-Neural））措施的实践进度影响。对于两个任务的左右PFC与使用较少的HBO比BLK显示出显着差异。认知工作量显示RND在PFC上表现出高效应（Rel-Neural）进行协调任务，而更困难的胆囊切除术前任务显示Eff_（rel-neural）差异仅在左侧PFC中。使用脑激活，行为和eff_（rel-neural）措施可以提供更准确地描绘的概括或学习转移。

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