Table 2.
Performance and pupillary response measures for the two participant groups
| Condition |
||||||
|---|---|---|---|---|---|---|
| Dependent Measure | 67 ms | 100 ms | 117 ms | 317 ms | 717 ms | No mask |
| Schizophrenia (n = 51) | ||||||
| Detection accuracy (%) | 53.1 (11.4) | 56.4 (9.2) | 60.4 (15.4) | 73.0 (16.6) | 77.4 (18.7) | 86.4 (11.9) |
| Baseline pupil diameter (mm) | 3.24 (0.58) | 3.26 (0.62) | 3.33 (0.61) | 3.24 (0.61) | 3.27 (0.61) | 3.28 (0.60) |
| Peak-to-peak dilation (mm) | 0.09 (0.06) | 0.09 (0.05) | 0.10 (0.07) | 0.12 (0.07) | 0.11 (0.08) | 0.08 (0.05) |
| Early PCA factor | 0.29 (1.04) | 0.15 (0.98) | 0.04 (0.72) | 0.11 (0.85) | 0.08 (0.90) | 0.25 (1.04) |
| Middle PCA factor (target) | 0.21 (0.95) | 0.29 (0.97) | 0.44 (1.12) | 0.38 (1.04) | 0.44 (1.08) | 0.54 (0.97) |
| Late PCA factor (mask) | −0.02 (1.03) | −0.16 (1.29) | −0.05 (0.93) | 0.08 (1.13) | 0.33 (1.24) | 0.04 (1.04) |
|
| ||||||
| Nonpsychiatric (n = 51) | ||||||
| Detection accuracy (%) | 59.4 (10.4) | 62.2 (12.7) | 69.2 (17.0) | 80.3 (15.8) | 87.1 (13.5) | 89.9 (8.8) |
| Baseline pupil diameter (mm) | 3.39 (0.58) | 3.39 (0.60) | 3.43 (0.62) | 3.40 (0.59) | 3.40 (0.56) | 3.42 (0.61) |
| Peak-to-peak dilation (mm) | 0.10 (0.08) | 0.11 (0.08) | 0.12 (0.07) | 0.12 (0.08) | 0.14 (0.11) | 0.10 (0.08) |
| Early PCA factor | −0.10 (0.95) | −0.03 (0.82) | −0.39 (0.95) | −0.14 (0.70) | −0.02 (0.91) | −0.21 (1.04) |
| Middle PCA factor (target) | −0.36 (0.87) | −0.36 (0.75) | −0.27 (0.85) | −0.55 (0.81) | −0.54 (0.75) | −0.23 (0.85) |
| Late PCA factor (mask) | −0.12 (0.64) | −0.11 (0.67) | −0.11 (0.79) | 0.21 (1.03) | 0.17 (0.93) | −0.20 (0.64) |
Note. Values represent means (with SD) and percentages where indicated.