Hi,
I want to plot the topological map in offline analysis and I just have 16 channels. I didn't undrestand what I should cut and paste. Please explain more for me. I have an example.m file that has been written by you that in that m.file there is a command "topoplotEEG(vdiff,'eloc64.txt','gridscale',150)" that call eloc64.txt that in this txt file we have:
1 -68 0.3 Fc5.
2 -60 0.219 Fc3.
3 -42 0.14 Fc1.
4 0 0.101 Fcz.
5 42 0.14 Fc2.
6 60 0.219 Fc4.
7 68 0.3 Fc6.
8 -90 0.304 C5..
9 -90 0.203 C3..
10 -90 0.101 C1..
11 0 0 Cz..
12 90 0.101 C2..
13 90 0.203 C4..
14 90 0.304 C6..
15 -112 0.3 Cp5.
16 -120 0.219 Cp3.
17 -138 0.14 Cp1.
18 180 0.101 Cpz.
19 138 0.14 Cp2.
20 120 0.219 Cp4.
21 112 0.3 Cp6.
22 -18 0.406 Fp1.
23 0 0.406 Fpz.
24 18 0.406 Fp2.
25 -36 0.406 Af7.
26 -23 0.343 Af3.
27 0 0.304 Afz.
28 23 0.343 Af4.
29 36 0.406 Af8.
30 -54 0.406 F7..
31 -46 0.363 F5..
32 -35 0.275 F3..
33 -21 0.219 F1..
34 0 0.203 Fz..
35 21 0.219 F2..
36 35 0.275 F4..
37 46 0.363 F6..
38 54 0.406 F8..
39 -72 0.406 Ft7.
40 72 0.406 Ft8.
41 -90 0.406 T7..
42 90 0.406 T8..
43 -90 0.499 T9..
44 90 0.499 T10.
45 -108 0.406 Tp7.
46 108 0.406 Tp8.
47 -126 0.406 P7..
48 -134 0.343 P5..
49 -145 0.275 P3..
50 -159 0.219 P1..
51 180 0.181 Pz..
52 159 0.219 P2..
53 145 0.275 P4..
54 134 0.343 P6..
55 126 0.406 P8..
56 -144 0.406 Po7.
57 -157 0.343 Po3.
58 180 0.304 Poz.
59 157 0.343 Po4.
60 144 0.406 Po8.
61 -162 0.406 O1..
62 180 0.406 Oz..
63 162 0.406 O2..
64 180 0.499 Iz..
that shows the positions of the electrodes. In 16 channel positioning if I have for example Fz, F4, F5, Cz, C4, C5,...
what should I do to change?
Looking forward to your answer.
Regards
Yalda Shahriari
How can I plot topological map of P300
Re: How can I plot topological map of P300
Yalda,
You just need to find, cut and paste the channels you are using from the eloc64.txt file, and place them in a new text filein the same order as your channels. I would save it in a new file called eloc16.txt, and use that in the topoplot call.
Let us know if you need more help.
adam
You just need to find, cut and paste the channels you are using from the eloc64.txt file, and place them in a new text filein the same order as your channels. I would save it in a new file called eloc16.txt, and use that in the topoplot call.
Let us know if you need more help.
adam
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