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首页> 外文期刊>International journal of human-computer studies >Quantifying target spotting performances with complex geoscientific imagery using ERP P300 responses
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Quantifying target spotting performances with complex geoscientific imagery using ERP P300 responses

机译：使用ERP P300响应量化具有复杂地球科学图像的目标点测性能

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摘要

Geoscientific data interpretation is a challenging task, which requires the detection and synthesis of complex patterns within data. As a first step towards better understanding this interpretation process, our research focuses on quantitative monitoring of interpreters' brain responses associated with geoscientific target spotting. This paper presents a method that profiles brain responses using electroencephalography (EEG) to detect P300-Iike responses that are associated with target spotting for complex geoscientific data. In our experiment, eight interpreters with varying levels of expertise and experience were asked to detect features, which are likely to be copper-gold rich porphyry systems within magnetic geophysical data. The target features appear in noisy background and often have incomplete shape. Magnetic images with targets and without targets were shown to participants using the "oddball" paradigm. Event related potentials were obtained by averaging the EEG epochs across multiple trials and the results show delayed P3 response to the targets, likely due to the complexity of the task. EEG epochs were classified and the results show reliable single trial classification of EEG responses with an average accuracy of 83%. The result demonstrated the usability of the P300-Iike responses to quantify the geoscientific target spotting performances.
机译：地学数据解释是一项艰巨的任务，需要对数据中的复杂模式进行检测和综合。作为更好地理解这一解释过程的第一步，我们的研究重点是定量监测与地球科学目标识别相关的译员的大脑反应。本文提出了一种使用脑电图（EEG）来分析脑反应的方法，以检测与目标点相关的P300-Iike反应，以获取复杂的地球科学数据。在我们的实验中，要求八名具有不同专业知识和经验水平的口译员来检测特征，这些特征很可能是磁性地球物理数据中富含铜金的斑岩系统。目标特征出现在嘈杂的背景中，并且通常具有不完整的形状。使用“ oddball”范例向参与者显示了具有目标和没有目标的磁性图像。与事件相关的电位是通过对多个试验的EEG历时取平均值而获得的，结果显示，由于任务的复杂性，P3对靶标的反应有所延迟。对脑电图时代进行分类，结果显示对脑电图响应进行可靠的单次试验分类，平均准确度为83％。结果表明，P300-Iike响应可用于量化地球科学目标的探测性能。

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