8 通道 Rest-aware MI-Conformer
1–40 Hz zero-phase IIR、200 Hz、0–2 秒、trial-level per-channel Z-score；不使用 ASR、ICA、EA。
20+20 初步最佳為 ShallowConvNet scratch：60.19%。 Rest-aware 相對 matched scratch 為 -2.08 percentage points。
實驗問題
比較模型容量與 Rest 輔助任務是否能改善 Left/Right 解碼。Rest 只訓練 Task/Rest head，不被當成 Left/Right 的第三類；正式二分類時移除該 head。
跨受試者 Source 篩選
| size |
strategy |
best_epoch |
parameters |
subject_mean_lr_balanced_accuracy |
subject_std_lr_balanced_accuracy |
subject_mean_state_balanced_accuracy |
| medium |
lr_only |
4 |
1045732 |
0.514924 |
0.045556 |
0.485974 |
| medium |
restaware |
17 |
1045732 |
0.506641 |
0.058420 |
0.770614 |
| large |
lr_only |
25 |
3227364 |
0.486915 |
0.063575 |
0.536852 |
| large |
restaware |
14 |
3227364 |
0.484001 |
0.073345 |
0.747769 |
每人 20 左 + 20 右微調
群組摘要
| 模式 |
Accuracy mean ± STD |
Balanced accuracy |
n_subjects |
| ShallowConvNet scratch |
60.19% ± 10.00% |
60.21% |
10 |
| MI-Conformer scratch |
56.25% ± 4.45% |
56.24% |
10 |
| Source Left/Right pretrain |
55.16% ± 7.01% |
55.20% |
10 |
| Rest-aware multi-task pretrain |
54.17% ± 6.20% |
54.25% |
10 |
單一受試者
| mode |
受試者 |
MI-Conformer scratch |
ShallowConvNet scratch |
Source Left/Right pretrain |
Rest-aware multi-task pretrain |
|
sub1 |
59.61% |
60.98% |
49.71% |
50.23% |
|
sub10 |
55.50% |
60.50% |
50.50% |
52.50% |
|
sub11 |
64.50% |
74.00% |
67.50% |
64.00% |
|
sub12 |
53.68% |
72.63% |
61.21% |
60.21% |
|
sub13 |
56.00% |
62.50% |
63.00% |
62.50% |
|
sub14 |
50.00% |
49.50% |
50.50% |
47.00% |
|
sub15 |
56.24% |
49.27% |
48.23% |
46.79% |
|
sub2 |
52.72% |
50.24% |
51.71% |
52.70% |
|
sub3 |
61.50% |
71.50% |
60.00% |
55.50% |
|
sub9 |
52.72% |
50.78% |
49.22% |
50.26% |
All-trial 微調
群組摘要
| 模式 |
Accuracy mean ± STD |
Balanced accuracy |
n_subjects |
| ShallowConvNet scratch |
74.36% ± 16.27% |
74.36% |
10 |
| MI-Conformer scratch |
65.61% ± 12.77% |
65.65% |
10 |
| Source Left/Right pretrain |
63.44% ± 11.05% |
63.44% |
10 |
| Rest-aware multi-task pretrain |
60.05% ± 11.58% |
60.09% |
10 |
單一受試者
| mode |
受試者 |
MI-Conformer scratch |
ShallowConvNet scratch |
Source Left/Right pretrain |
Rest-aware multi-task pretrain |
|
sub1 |
68.39% |
93.09% |
63.66% |
55.78% |
|
sub10 |
72.00% |
77.50% |
67.50% |
59.50% |
|
sub11 |
82.00% |
96.50% |
77.50% |
77.50% |
|
sub12 |
80.12% |
82.06% |
75.06% |
78.06% |
|
sub13 |
60.50% |
79.00% |
73.00% |
71.00% |
|
sub14 |
51.00% |
47.00% |
52.00% |
49.50% |
|
sub15 |
48.77% |
57.20% |
49.26% |
49.72% |
|
sub2 |
55.65% |
66.04% |
52.17% |
51.77% |
|
sub3 |
81.00% |
85.50% |
72.00% |
60.00% |
|
sub9 |
56.70% |
59.72% |
52.26% |
47.72% |