TABLE 1.
Group demographics and clinical information
|
PSZ Mean (SD) |
HC Mean (SD) |
|
|---|---|---|
| Age | 40.23 (9.10) | 37.89 (8.35) |
| Range | 24–57 | 25–55 |
| Female/male | 11/20 | 12/16 |
| AA: A: C: O | 15: 1: 15: 0 | 8: 1: 17: 2 |
| Handednessa | 51.74 (61.05) | 70.36 (53.33) |
| Years of education | 13.90 (2.71) | 15.29 (1.92) |
| IQb | 104.61 (9.43) | 106.54 (6.84) |
| SAPS | 14.45 (11.12) | n/a |
| SANS | 25.06 (14.95) | n/a |
| BPRS | 14.32 (7.28) | n/a |
| SPQ | n/a | 10.79 (8.01) |
The same HC participated in the DRT and the detection task. 27 PSZ who had participated in the WM task, also performed the detection task.
a
measured with the Edinburgh Handedness Inventory (Oldfield, 1971).
b
measured with the National Adult Reading Test (Nelson, 1982). AA = African American; A = Asian; C = Caucasian; O = Other; SAPS = Scale for the Assessment of Positive Symptoms (Andreasen, 1984); SANS = Scale for the Assessment of Negative Symptoms (Andreasen, 1983); BPRS = Brief Psychiatric Rating Scale (Overall & Gorman, 1962); SPQ = Schizotypal Personality Questionnaire (Raine, 1991).