. Author manuscript; available in PMC: 2022 Mar 1.

Published in final edited form as: Biol Psychiatry Cogn Neurosci Neuroimaging. 2020 Sep 1;6(3):370–379. doi: 10.1016/j.bpsc.2020.08.013

Table 4.

Spearman correlations (rho) between EEG and clinical/behavioral measures

	Theta ERSP	Theta ITPC	KLMI
SZ only
SAPS	0.00	0.02	0.00
SANS	−0.25	−0.30	−0.28
CPZ	−0.19	−0.30	−0.07
BACS
All participants	0.37^**	0.26	0.36^**
HC	−0.25	−0.12	0.04
SZ	0.36	0.14	0.32
Gaze task behavior
Accuracy
All participants	0.17	0.21	0.24
HC	−0.04	−0.08	0.00
SZ	0.39^*	0.43^*	0.29
Reaction time
All participants	−0.23	−0.12	−0.23
HC	−0.04	0.07	0.05
SZ	−0.03	0.03	−0.28

Note. Principal component analysis (PCA) scores of EEG measures were used in the computation of the correlations.

SZ = schizophrenia. HC = healthy control. ERSP = event-related spectral perturbation. ITPC = inter-trial phase consistency. KLMI = Kullback-Leibler Modulation Index.

SAPS = Scale for the Assessment of Positive Symptoms.

SANS = Scale for the Assessment of Negative Symptoms.

BACS = Brief Assessment of Cognition in Schizophrenia.

CPZ = daily chlorpromazine equivalent antipsychotic dose.

p<0.05.

^**

p<0.01.