Table 3 Mean working memory score (\({{{{\rm{d}}}}}^{{\prime} }\)) and standard deviation (italicised in brackets) for the four n-back difficulty values between pre- and post-exposure assessments across all conditions
Working Memory (\({{{{\rm{d}}}}}^{{\prime} }\)) | Normal Inhalation | Restricted Inhalation | |||
|---|---|---|---|---|---|
Clean Air | PM Pollution | Clean Air | PM Pollution | ||
1-back | Pre-Exposure | 3.98 (0.80) | 3.82 (0.86) | 4.00 (0.78) | 4.05 (0.82) |
Post-Exposure | 4.07 (0.72) | 3.93 (0.74) | 3.70 (0.83) | 3.92 (0.90) | |
2-back | Pre-Exposure | 3.38 (1.12) | 3.02 (1.35) | 3.32 (1.16) | 3.30 (1.16) |
Post-Exposure | 2.98 (1.15) | 2.99 (1.21) | 3.06 (1.22) | 3.00 (1.13) | |
3-back | Pre-Exposure | 1.61 (0.74) | 1.50 (0.93) | 1.74 (0.99) | 1.77 (0.94) |
Post-Exposure | 1.66 (0.93) | 1.48 (0.72) | 1.69 (0.85) | 1.78 (0.98) | |
4-back | Pre-Exposure | 1.11 (0.79) | 0.90 (0.83) | 1.11 (0.61) | 0.94 (0.77) |
Post-Exposure | 1.02 (0.81) | 1.03 (0.64) | 0.81 (0.50) | 0.93 (0.58) | |