In this video, we demonstrate the steps required to run a brain-computer interface experiment, including setting up the EEG cap, calibrating the system, and training the user to move a cursor in two dimensions using imagined movements.
Experimental Procedure
Part 6: Representative Results:
Figure 1 A) and B) Topography of spectral changes in the 10-12 Hz band during real and imagined movements with the right hand. C) The power spectrum on C3 during rest (dashed) and movement (solid). D) The r-squared of the power during movement compared to rest.
Figure 2 The r-squared across all channels for imagined right-hand movement. The x-axis is the frequency in 2 Hz bins from 0 to 70 Hz. The y-axis is the channel number. The highest r-squared values are found on channels 9, 10, 17, 18, and 19, which cover the contralateral hand area of motor cortex.
NIH NIBIB RO1: 1R01EB009103-01
Clinical Neuroengineering Training Program (1 T90 DK070079-01)
Wallace H Coulter Foundation
NIH Institutional Clinical and Translational Science Award
NIH/NCRR 1KL2RR025012-01
Wisconsin Alumni Research Foundation
Material Name | Type | Company | Catalogue Number | Comment |
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BCI2000- Compatible Amplifer System | g.USBamp | http://www.gtect.at | ||
BCI2000- Compatible Amplifer System | Tucker-Davis Technology | Rx5 or Rx 7 | http://www.tdt.com | |
EEG cap | Electro-cap International | http://www.electro-cap.com At a minimum, the cap should have electrodes over hand and feet areas (C3, C4, and Cz). Additional channels can be used for control (CP3, CP4, CPz) and for spatial filtering as well, which will improve the signal quality. |
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Conductive gel | Electro-cap International | http://www.electro-cap.com | ||
PC | Running Windows XP or Vista (at least Pentium 4, 2 GHz, 1 GB RAM) | |||
Two monitors | Each at least 19in (one for the subject and one for the researcher) |