Table 1.
Participant characteristics (n = 42)
| Mean (SD) | |
|---|---|
| Age (in years) | 37.9 (9.50) |
| Premorbid (NART) IQ | 107.84 (8.97) |
| Current IQ | 101.76 (9.04) |
| Education (in years) | 13.50 (2.30) |
| Age at illness onset (in years)a | 24.22 (7.51) |
| Duration of illness (years) | 14.32 (10.51) |
| Symptoms | |
| PANSS: positive | 17.34 (4.44) |
| PANSS: negative | 18.37 (4.26) |
| PANSS: general psychopathology | 33.61 (6.52) |
| Total | 69.32 (12.97) |
| Diagnosis (n) | |
| Paranoid schizophrenia | 32 |
| Residual schizophrenia | 3 |
| Schizophrenia undifferentiated | 1 |
| Schizoaffective disorder | 6 |
| Current antipsychotic medication type (n) | |
| Atypical | 34 |
| Typical | 6 |
| Both | 2 |
| Mean (SEM) | |
| PPI (% inhibition) | |
| 30 msec | 11.26 (4.59) |
| 60 msec | 22.62 (4.13) |
| 120 msec | 32.26 (4.94) |
| Startle amplitude (in arbitrary units) | 202.35 (25.74) |
| Latency to peak (in msec) | |
| Pulse-alone | 69.32 (1.24) |
| 30 msec | 65.13 (1.59) |
| 60 msec | 65.01 (2.09) |
| 120 msec | 65.07 (2.12) |
NART: National Adult Reading Test (Nelson and Willison, 1991).
PANSS: Positive and Negative Syndrome Scale (Kay et al., 1987).
a
n = 41, Reliable information about the age at illness onset was unavailable for one participant.