Table 3. Binary Multivariate Pattern Classification of UD and BD Patients.
|
Accuracy (p-value) |
|||
|---|---|---|---|
| BD vs UD | UD vs HC | BD vs HC | |
| Amygdala | |||
| Support vector machines | |||
| Happy>shapes | 59.72 (0.102) | 52.78 (0.371) | 59.72 (0.109) |
| Fearful>shapes | 47.22 (0.691) | 50.00 (0.515) | 48.61 (0.622) |
| Angry>shapes | 54.17 (0.311) | 51.39 (0.439) | 56.94 (0.182) |
| Gaussian process classifier | |||
| Happy>shapes | 63.89 (0.028)* | 54.17 (0.325) | 58.33 (0.137) |
| Fearful>shapes | 48.61 (0.619) | 52.78 (0.358) | 54.17 (0.286) |
| Angry>shapes | 59.72 (0.099) | 50.00 (0.564) | 55.56 (0.254) |
| Anterior cingulate gyrus | |||
| Support vector machines | |||
| Happy>shapes | 62.50 (0.059) | 61.11 (0.081) | 48.61 (0.567) |
| Fearful>shapes | 69.44 (0.008)** | 51.39 (0.444) | 52.75 (0.372) |
| Angry>shapes | 51.39 (0.442) | 48.61 (0.638) | 55.56 (0.261) |
| Gaussian process classifier | |||
| Happy>shapes | 56.94 (0.180) | 66.67 (0.017)* | 45.83 (0.296) |
| Fearful>shapes | 72.22 (0.004)** | 56.94 (0.174) | 50.00 (0.647) |
| Angry>shapes | 50.00 (0.538) | 44.44 (0.284) | 54.17 (0.346) |
| Whole brain | |||
| Support vector machines | |||
| Happy>shapes | 50.00 (0.505) | 61.11 (0.086) | 41.67 (0.117) |
| Fearful>shapes | 54.17 (0.308) | 55.56 (0.267) | 44.44 (0.257) |
| Angry>shapes | 48.61 (0.409) | 55.56 (0.296) | 43.06 (0.182) |
| Gaussian process classifier | |||
| Happy>shapes | 50.00 (0.643) | 62.50 (0.074) | 50.00 (0.621) |
| Fearful>shapes | 58.33 (0.162) | 58.33 (0.129) | 43.06 (0.201) |
| Angry>shapes | 45.83 (0.358) | 51.39 (0.453) | 37.50 (0.072) |
Abbreviations: BD, bipolar disorder; HC, healthy controls; UD, unipolar depression.
*p<0.05, **p<0.01. Accuracy in %. Bold represents statistically significant results (p<0.05).