Table 3.
The features selected by the l1-regularized support vector machine under positive emotional stimulus.
| No. | Features | Rhythm | Brain region |
|---|---|---|---|
| 1 | Differential entropy | Alpha | Left frontal lobe |
| 2 | C0 complexity | Theta | Left frontal lobe |
| 3 | Correlation dimension | Gamma | Temporal lobe |
| 4 | Hjorth parameter: mobility | High Beta | Parietal lobe |
| 5 | Maximum power spectral frequency | Low Beta | Occipital lobe |
| 6 | Correlation dimension | Gamma | Parietal lobe |
| 7 | Singular spectrum entropy | Alpha | Temporal lobe |
| 8 | Maximum power spectral frequency | Gamma | Right frontal lobe |
| 9 | Variance | Gamma | Right frontal lobe |
| 10 | Power spectral entropy | Gamma | Right frontal lobe |