Spatial and Time Domain Feature of ERP Speller System Extracted via Convolutional Neural Network

<div>ERP averaged over all trials and feature map of L<sub>1</sub> of L subject. The ERP from frontal lobe was copied and pasted on last three rows. (a) Grand average ERP over all trials. Feature maps from L<sub>1</sub> shown in (b), (c), (d), (e), (f), (g), (h), and (i). Strong correlation between frontal and central lobe and between central and parietal lobe was found. Spatial correlation among other electrodes is not well defined.</div>

Computational Intelligence and Neuroscience

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Figure 4

Figure 4: Spatial and Time Domain Feature of ERP Speller System Extracted via Convolutional Neural Network 