Figure 3
From: Long-term use of a neural prosthesis in progressive paralysis
Electrooculogram acquisition in a normal volunteer and patient #S3. We recorded an electrooculogram (EOG) during BCI operation. The black bars indicate the times at which we instructed the subject to attend to the LED. The EOG of patient #S3 is shown as a solid black line. Note that the amplitudes were <3 μV and showed no systematic association with task timing. The gray dotted line is a representative EOG from an able-bodied volunteer operating the same BCI system via covert attention; this EOG exhibits large peaks of a few ten μV.
