Table 1.

Participant demographics.

	HC	SP
Gender	40 males/17 females	39 males/7 females
Age	39.4 (12.7) years	39.2 (13.9) years
IQ	111.9* (11.3)	101.5** (17.1)
Medication	-	14.5** (7.5) mg/day
Positive symptoms	-	15.5 (4.9)
Negative symptoms	-	14.6 (5.2)

IQ based on WASI Neuropsychological Test; Medication is based on olanzapine equivalent dosage; Positive and Negative symptoms are cumulative scores from PANSS symptom scale; Values in parentheses represent standard deviations.

^*Mean based on 56 controls.

^**Means based on 44 patients.