The structure stability of negative symptoms: longitudinal network analysis of the Brief Negative Symptom Scale in people with schizophrenia.

ABSTRACT:

Background

The structure of negative symptoms of schizophrenia is still a matter of controversy. Although a two-dimensional model (comprising the expressive deficit dimension and the motivation and pleasure dimension) has gained a large consensus, it has been questioned by recent investigations.

Aims

To investigate the latent structure of negative symptoms and its stability over time in people with schizophrenia using network analysis.

Method

Negative symptoms were assessed in 612 people with schizophrenia using the Brief Negative Symptom Scale (BNSS) at baseline and at 4-year follow-up. A network invariance analysis was conducted to investigate changes in the network structure and strength of connections between the two time points.

Results

The network analysi

SUBMITTER: Rucci P 

PROVIDER: S-EPMC10594087 | biostudies-literature | 2023 Sep

REPOSITORIES: biostudies-literature