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Dissociating Disorders of Depression, Anxiety, and Their Comorbidity with Measures of Emotional Processing: A Joint Analysis of Visual Brain Potentials and Auditory Perceptual Asymmetries

Overview
Journal Biol Psychol
Specialty Psychiatry
Date 2021 Feb 8
PMID 33556452
Citations 1
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Abstract

In a multigenerational study of families at risk for depression, individuals with a lifetime history of depression had: 1) abnormal perceptual asymmetry (PA; smaller left ear/right hemisphere [RH] advantage) in a dichotic emotion recognition task, and 2) reduced RH late positive potential (P3) during an emotional hemifield task. We used standardized difference scores for processing auditory (PA sad-neutral) and visual (P3 negative-neutral) stimuli for 112 participants (52 men) in a logistic regression to predict history of depression, anxiety or comorbidity of both. Whereas comorbidity was separately predicted by reduced PA (OR = 0.527, p = .042) or P3 (OR = 0.457, p = .013) alone, an interaction between PA and P3 (OR = 2.499, p = .011) predicted depressive disorder. Follow-up analyses revealed increased probability of depression at low (lack of emotional differentiation) and high (heightened reactivity to negative stimuli) levels of both predictors. Findings suggest that reduced or heightened right-lateralized emotional responsivity to negative stimuli may be uniquely associated with depression.

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PMID: 35233057 PMC: 8888606. DOI: 10.1038/s41598-022-07403-0.

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