135629.fig.005a
(a) Horizontal (centre-left-right)
135629.fig.005b
(b) Horizontal (centre-right-left)
135629.fig.005c
(c) Vertical (centre-up-down)
135629.fig.005d
(d) Vertical (centre-down-up)
135629.fig.005e
(e) Eye blinking (once)
135629.fig.005f
(f) Eye blinking (twice)
Figure 5: The EOG recording samples.