خرائط الرأس topoplot

من الواجهة

1. Edit › Select data
2. Channel(s)on->remove theseOk ← EOG1 EOG2
3. Plot › Channel ERPs › With scalp maps
4. Plotting time range (ms): ← -200 800
5. Scalp map latencies (ms, NaN -> max-RMS) ← NaN
6. Window size at latencies in msOk ← 0
7. Plot › ERP map series › In 2-D
8. Plotting ERP scalp maps at these latencies ← 0:100:500
9. Plot title
10. Plot geometry (rows,col.); [] -> near square ← [2 3]
11. Ok ← 'electrodes', 'on'

السكربت

EEG = pop_loadset('D1_epochs_clean.set', pwd);
EEG = pop_select(EEG, 'rmchannel', {'EOG1', 'EOG2'});
EEG.setname = 'D1 epochs clean scalp';
figure; pop_timtopo(EEG, [-200 800], NaN, 'D1 epochs clean scalp');
figure; pop_timtopo(EEG, [-200 800], [100 200 400], 'D1 epochs clean scalp');
pop_topoplot(EEG, 1, 0:100:500, 'D1 epochs clean scalp', [2 3], 0, 'electrodes', 'on');
erp = mean(EEG.data, 3);
win = EEG.times >= 300 & EEG.times <= 500;
winMap = mean(erp(:, win), 2);
lim = max(abs(winMap));
figure;
topoplot(winMap, EEG.chanlocs, 'maplimits', [-lim lim], 'electrodes', 'on');
cb = colorbar; ylabel(cb, '\muV');
title('300 to 500 ms');

أي قيمة أختار؟

لقسم Methods

Scalp topographies of the ERP at 30 average-referenced scalp channels (EOG channels excluded) were plotted at 0 to 500 ms in 100-ms steps and as the mean amplitude from 300 to 500 ms, using a symmetric color scale (pop_topoplot, topoplot, EEGLAB 2026.1).