A New Auditory Multi-Class Brain-Computer Interface Paradigm: Spatial Hearing as an Informative Cue
Figure 3
Scalp topographies for the P300 interval (condition C1000).
Scalp topographies indicate the average potential over the interval marked in Figure 2. ROC plots do not necessarily indicate the magnitude of the difference between the two curves, but rather the significance of that difference. For most subjects this is concentrated over the parietal area. Each row corresponds to a different subject. Note that not all subjects have the same number of electrodes available.