Table 2.

Pearson correlation coefficients between event-related potential (ERP) indices and clinical evaluation scores.

		CNV slope		CNV amplitude		N170 amplitude
		Upright face	Inverted face	Upright face	Inverted face	Upright face	Inverted face
Positive symptoms	r	0.201	0.310	0.174	0.029	0.415**	0.495**
	p	0.213	0.052	0.282	0.859	0.008	0.001
Negative symptoms	r	0.153	0.137	0.100	0.134	0.134	0.146
	p	0.345	0.398	0.539	0.410	0.410	0.369
PSP	r	−0.374*	−0.382*	−0.236	−0.162	−0.371*	−0.412**
	p	0.017	0.015	0.143	0.317	0.019	0.008

PANSS, Positive and Negative Syndrome Scale; PSP, Personal and Social Performance Scale. *p < 0.05; **p < 0.01. Bold fonts represent significant correlation coefficients.