Table 1.
Demographic information about the subjects.
| Control |
Schizophrenia |
P-Value | |||
|---|---|---|---|---|---|
| (n = 14) |
(n = 15) |
||||
| Mean | SD | Mean | SD | ||
| A. Study 1: personal space and parietal–frontal function | |||||
| Age(years) | 26.0 | 6.5 | 30.1 | 9.1 | 0.18 |
| Premorbid IQa | 112.2 | 4.8 | 108.9 | 6.8 | 0.15 |
| Parental education (years) | 14.9 | 2.1 | 14.8 | 3.1 | 0.97 |
| PANSS Total | 52.3 | 12.0 | |||
| PANSS Positive Symptoms Subscale | 13.9 | 5.2 | |||
| PANSS Negative Symptoms Subscale | 12.9 | 5.2 | |||
| PANSS General Symptoms Subscale | 25.5 | 4.7 | |||
| Duration of illness (years) | 9.9 | 8.3 | |||
| Antipsychotic dose in chlorpromazine | 430.7 | 354.7 | |||
| equivalents (n = 7) | |||||
| B. Study 2: lower-level face and motion processing | |||||
| Age(years) | 40.7 | 14.4 | 41.3 | 11.4 | 0.9 |
| Premorbid IQa | 113.7 | 6.1 | 103.4 | 9.7 | 0.001 |
| Parental education (years) | 13.1 | 2.8 | 13.4 | 1.7 | 0.64 |
| PANSS Total | 47.5 | 10.3 | |||
| PANSS Positive Symptoms Subscale | 12.0 | 4.5 | |||
| PANSS Negative Symptoms Subscale | 12.5 | 4.6 | |||
| PANSS General Symptoms Subscale | 23.1 | 4.8 | |||
| Duration of illness (years) | 18.42 | 12.87 | |||
| Antipsychotic dose in chlorpromazine | 542.29 | 479.35 | |||
| equivalents (n = 17) | |||||
Demographic and clinical information about the subjects of Study 1 (A) and Study 2 (B) are listed. In Study 2, the cohort was older and the patients were more likely to be treated with antipsychotic medication, compared to Study 1. Also, p-values of independent Student's t-tests comparing the two groups on key demographic variables (age, premorbid IQ or parental education) are included.
a
Measured using the North American Adult Reading Test. PANSS, Positive and Negative Syndrome Scale.