Title

Transdiagnostic Psychiatric Symptoms Related To Visual Evoked Potential Abnormalities

Keywords

Apathy; Disorganized; ERP; Mood disorders; Red light; Schizophrenia; Social anhedonia

Abstract

Visual processing abnormalities have been reported across a range of psychotic and mood disorders, but are typically examined within a particular disorder. The current study used a novel transdiagnostic approach to examine diagnostic classes, clinician-rated current symptoms, and self-reported personality traits in relation to visual processing abnormalities. We examined transient visual-evoked potentials (VEPs) from 48 adults (56% female), representing a wide range of psychotic and mood disorders, as well as individuals with no history of psychiatric disorder. Stimuli were low contrast check arrays presented on green and red backgrounds. Pairwise comparisons between individuals with schizophrenia-spectrum disorders (SSD), chronic mood disorders (CMD), and nonpsychiatric controls (NC) revealed no overall differences for either P1 or N1 amplitude. However, there was a significant interaction with the color background in which the NC group showed a significant increase in P1 amplitude to the red, vs. green, background, while the SSD group showed no change. This was related to an increase in social anhedonia and general negative symptoms. Stepwise regressions across the entire sample revealed that individuals with greater apathy and/or eccentric behavior had a reduced P1 amplitude. These relationships provide clues for uncovering the underlying causal pathology for these transdiagnostic symptoms.

Publication Date

12-15-2015

Publication Title

Psychiatry Research

Volume

230

Issue

2

Number of Pages

262-270

Document Type

Article

Personal Identifier

scopus

DOI Link

https://doi.org/10.1016/j.psychres.2015.09.004

Socpus ID

84962725406 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/84962725406

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