Covert Intention to Answer “Yes” or “No” Can Be Decoded from Single-Trial Electroencephalograms (EEGs)

Figure 6

Statistical comparisons in spectral power between “yes” and “no.” (a) Topographical distributions of t values (left: theta band (4–8 Hz), 0–1200 ms; right: alpha band (8–13 Hz), 0–1200 ms). Black dots (FC2, FC6, and C4 in the left panel and CP2, Pz, and P4 in the right panel) denote high t values above a predetermined threshold, corresponding to the highest 10%. (b) The clusters in the time-frequency domain showing significant differences between “yes” and “no” in right frontal (left panel) and right parietal regions (right panel) (denoted by black contours).

(a)

(b)