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Physionet EEG Motor Movement/Imagery Dataset referenced to what channel?

Posted: 26 Dec 2015, 16:37
by hayder
Hi there,

I want to import the Physionet EEG Motor Movement/Imagery Dataset to Neuroguide software. I had to edit the headers of the EDF+ files, since the naming of the channels should match that used in Neuroguide. However, I had not found anything indicating to what are the EEG readings referenced exactly. A commonly used reference are either A1 or A2 or linked ears or sometimes one of the EEG channels. I read the two papers mentioned in physionet site and several other papers used the dataset, but all of them did not mention the referencing.

Appreciate if you know what is the reference used in the EEG dataset recording.

Thanks
Haider

Re: Physionet EEG Motor Movement/Imagery Dataset referenced to what channel?

Posted: 28 Dec 2015, 17:20
by pbrunner
Hayder,

right mastoid = GND:
right earlobe = REF;

The channel assignments were as follows:
1. FC5
2. FC3
3. FC1
4. FCz
5. FC2
6. FC4
7. FC6
8. C5
9. C3
10. C1
11. Cz
12. C2
13. C4
14. C6
15. CP5
16. CP3
17. CP1
18. CPz
19. C2
20. CP4
21. CP6
22. Fp1
23. Fpz
24. Fp2
25. AF7
26. AF3
27. AFz
28. AF4
29. AF8
30. F7
31. F5
32. F3
33. F1
34. Fz
35. F2
36. F4
37. F6
38. F8
39. FT7
40. FT8
41. T7
42. T8
43. T9
44. T10
45. TP7
46. TP8
47. P7
48. P5
49. P3
50. P1
51. Pz
52. P2
53. P4
54. P6
55. P8
56. PO7
57. PO3
58. POz
59. PO4
60. PO8
61. O1
62. Oz
63. O2
64. Iz

Regards, Peter