Table 2 Effects of face masks on response frequencies in the young and old cohort
| Â | Response frequency | ||||||
|---|---|---|---|---|---|---|---|
| Â | Anger | Fear | Sadness | Contempt | F | etap2 | BF10 |
Young cohort | |||||||
w/o mask | 0.26 | 0.21 | 0.28 | 0.26 | 6.4 | 0.12 |  > 100 |
With mask | 0.25 | 0.24 | 0.25 | 0.27 |  < 1 | 0.02 | 0.09 |
Mask effect | − 0.01 | 0.03 | − 0.03 | 0.01 | 2.9 | 0.06 | 2.7 |
Old cohort | |||||||
w/o mask | 0.22 | 0.23 | 0.25 | 0.30 | 5.2 | 0.10 |  > 100 |
With mask | 0.19 | 0.30 | 0.28 | 0.24 | 5.7 | 0.11 |  > 100 |
Mask effect | − 0.03 | 0.07 | 0.03 | − 0.06 | 7.1 | 0.13 |  > 100 |
Age effect | |||||||
Mask effect | − 0.02 | 0.04 | 0.06 | − 0.07 | 4.8 | 0.05 | 12 |