Towards the automated localisation of targets in rapid image-sifting by collaborative brain-computer interfaces.
Towards the automated localisation of targets in rapid image-sifting by collaborative brain-computer interfaces.
复制标题
DOI：
10.1371/journal.pone.0178498
复制
发表时间：
2017
期刊：
影响因子：
3.7
通讯作者：
Poli R
中科院分区：
文献类型：
--
作者：
Matran-Fernandez A;Poli R
N2pc是一种偏侧化的事件相关电位（ERP），它表示注意力向潜在感兴趣对象的位置转移。我们提出了一个单一的试验目标定位协作脑机接口（cBCI），利用这个ERP自动近似的水平位置的目标在航空图像。通过快速连续视觉呈现技术以5、6和10 Hz的速率呈现图像。我们创建了三种不同的cBCI，并测试了一种参与者选择方法，其中根据参与者表现的相似性形成小组。在我们的实验中引出的N2pc包含关于目标沿着水平轴的位置的信息。此外，结合来自多个参与者的信息，相对于单用户BCI，接受者工作特征曲线下面积的绝对中位数改善高达21%（对于3号组）。当小组由具有相似个人表现的参与者组成时，这些改善更大，并且这种效果可以用简单的理论模型来解释。我们的研究结果表明，脑机接口的自动分流，可以通过整合两个分类系统：一个致力于目标检测和另一个检测与横向目标相关的注意力转移。
The N2pc is a lateralised Event-Related Potential (ERP) that signals a shift of attention towards the location of a potential object of interest. We propose a single-trial target-localisation collaborative Brain-Computer Interface (cBCI) that exploits this ERP to automatically approximate the horizontal position of targets in aerial images. Images were presented by means of the rapid serial visual presentation technique at rates of 5, 6 and 10 Hz. We created three different cBCIs and tested a participant selection method in which groups are formed according to the similarity of participants’ performance. The N2pc that is elicited in our experiments contains information about the position of the target along the horizontal axis. Moreover, combining information from multiple participants provides absolute median improvements in the area under the receiver operating characteristic curve of up to 21% (for groups of size 3) with respect to single-user BCIs. These improvements are bigger when groups are formed by participants with similar individual performance, and much of this effect can be explained using simple theoretical models. Our results suggest that BCIs for automated triaging can be improved by integrating two classification systems: one devoted to target detection and another to detect the attentional shifts associated with lateral targets.