Table 1.

Demographic features of the sample

	Healthy controls (n = 40)	Patients with schizophrenia (n = 41)	T/χ 2
Gender (male/female)	29/11	31/10	χ 2 = 0.1, p = 0.8
Handedness (right/left)	36/4	37/4	χ 2 = 0.001, p = 0.97
Age in years (SD)	33.4 (9.1)	33.63 (9.2)	T = −0.12, p = 0.91
Mean parental NS-SEC (SD)	2.00 (1.3)	2.46 (1.5)	T = 1.46, p = 0.15
Global mean gyrification	2.99 (0.14)	2.95 (0.16)	T = 1.37, p = 0.18
Mean total SSPI score	–	11.7 (7.4)
Reality distortion	–	2.24 (2.6)
Disorganisation	–	1.34 (1.3)
Psychomotor poverty	–	2.88 (3.8)