Table 2 The difference in the variance of facial action units (AUs) between individuals with and without Parkinson’s disease.
Expression | Facial action unit | Individuals with Parkinson’s disease Mean (SD) | Individuals without Parkinson’s disease Mean (SD) | MWU p-value | Ancova p-value |
|---|---|---|---|---|---|
Smiling face | AU01 (Inner Brow Raiser) | 0.15 (0.18) | 0.07 (0.12) | 0.001 | 0.002 |
AU06 (Cheek Raiser) | 017 (0.15) | 0.25 (0.25) | 0.047 | 0.134 | |
AU12 (Lip Corner Puller) | 0.21 (0.18) | 0.27 (0.24) | 0.065 | 0.226 | |
Disgusted face | AU04 (Brow Lowerer) | 0.19 (0.20) | 0.26 (0.31) | 0.063 | 0.213 |
AU07 (Eye Lid Tightener) | 0.19 (0.20) | 0.24 (0.27) | 0.103 | 0.298 | |
AU09 (Nose Wrinkler) | 0.04 (0.06) | 0.04 (0.07) | 0.267 | 0.992 | |
Surprising face | AU01 (Inner Brow Raiser) | 0.28 (0.28) | 0.27 (0.32) | 0.172 | 0.833 |
AU02 (Outer Brow Raiser) | 0.15 (0.29) | 0.12 (0.18) | 0.144 | 0.455 | |
AU04 (Brow Lowerer) | 0.31 (0.37) | 0.40 (0.43) | 0.061 | 0.159 |
