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首页> 外文会议>International conference on human-computer interaction;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​​拟的虚拟现实外科手术任务进行的在脑学习：血流动力学和行为影响

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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 (EFFrei-neurai) 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：功能性近红外光谱（fNIR）是一种非侵入性的便携式光学成像工具，可监测前额叶皮层（PFC）内响应于感觉，运动或认知激活的血流动力学响应（即氧化血红蛋白（HbO））的变化。在整个训练和测试的4天里，我们在模拟腹腔镜手术任务的学习过程中，使用fNIR监视PFC的激活。封锁（BLK）和随机（RND）练习顺序用于测试练习时间表对转移过程中行为，血液动力学反应和相对神经效率（EFFrei-neurai）措施的影响。两种任务的左右PFC与使用RND的HbO低于BLK的RND显示出显着差异。认知工作量显示，RND在整个PFC上表现出较高的EFF_（rel-neural）协调任务，而更困难的胆囊切除术任务仅在左侧PFC上显示EFF_（rel-neural）差异。使用大脑激活，行为和EFF_（rel-neural）措施可以提供对学习泛化或转移的更准确描述。

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