Table 2. Correlations between facial emotion recognition performance (FER d'), demographic data, clinical characteristics, and neurocognitive measures in schizophrenia and nonclinical comparisons a.
FER d' | Correlation coefficient a (ρ) | |
---|---|---|
Schizophrenia (N = 74) | Healthy controls (N = 80) | |
Age | 0.01 | -0.28* |
Educational level, years | 0.25* | 0.12 |
Clinical characteristics | ||
Age of onset | 0.16 | N/A |
Duration of illness | -0.16 | N/A |
Number of hospitalizations | -0.20 | N/A |
Chlorpromazine equivalents (mg) | -0.035 | N/A |
PANSS | ||
Positive symptoms | -0.14 | N/A |
Negative symptoms | -0.05 | N/A |
General psychopathology | -0.07 | N/A |
Total score | -0.13 | N/A |
CDSS | -0.09 | N/A |
BDI | N/A | -0.20 |
Neurocognitive measures | ||
SPM | 0.53** | 0.26* |
CPT d’ | 0.15 | 0.14 |
WCST category | 0.37** | 0.35** |
Digit span | 0.32** | 0.17 |
a Nonparametric correlation by Spearman ρ
PANSS = Positive and Negative Syndrome Scale; CDSS = Calgary Depression Scale for Schizophrenia; BDI = Beck Depression Inventory; SPM = Raven’s Standard Progressive Matrices; CPT = Continuous Performance Test; WCST = Wisconsin Card Sorting Test
*p < 0.05,
**p < 0.01