Neurophysiological correlates of Avolition-apathy in schizophrenia: A resting-EEG microstates study.

ABSTRACT:

Background

The "Avolition-apathy" domain of the negative symptoms was found to include different symptoms by factor analytic studies on ratings derived by different scales. In particular, the relationship of anhedonia with this domain is controversial. Recently introduced negative symptom rating scales provide a better assessment of anhedonia, allowing the distinction of anticipatory and consummatory aspects, which might be related to different psychopathological dimensions. The study of associations with external validators, such as electrophysiological, brain imaging or cognitive indices, might shed further light on the status of anhedonia within the Avolition-apathy domain.

Objectives

We used brain electrical microstates (MSs), which represent subsecond periods of quasi-s

SUBMITTER: Giordano GM 

PROVIDER: S-EPMC6128100 | biostudies-literature | 2018

REPOSITORIES: biostudies-literature