Table 1.

Means, Standard Deviations (SD), and Ranges for Demographic and Clinical Variables

	Patients (n = 20, 15 male)			Healthy Controls (n = 20, 15 male)
Variable	Mean	SD	Range	Mean	SD	Range
Age (years)	29	7.7	19 – 44	28.9	6.4	20 – 42
Education (years)	13.4a	2.2	9 – 16	16.1	2.1	12 – 20
Handedness (LQ) b	79.8	30.8	0 – 100	74.9	24.8	0 – 100
Verbal IQ (WAIS)	102.4c	10.9	87 – 123
Onset age (years)	21.1	6.1	7 – 35
Illness duration (years)	6.2d	9.7	0 – 37
Total BPRS	32.8d	7.9	22 – 48
PANSS general	28.4d	7.2	16 – 38
PANSS positive	14.3d	5.9	7 – 26
PANSS negative	12.3d	5.5	7 – 27

^aPatients differ significantly from healthy controls (F[1,38] = 16.7, p < .001).

^bLaterality quotient (Oldfield, 1971) can vary between −100.0 (completely left-handed) and +100.0 (completely right-handed).

^cn = 7.

^dn = 19.