Related Experiment Video
Updated: Aug 6, 2025

Author Spotlight: Unveiling the Connection Between Sleep Disorders and Cognitive Symptoms in Depression
Published on: April 26, 2024
The Roles of Stress, Sleep, and Fatigue on Depression in People with Visual Impairments
Soyoung Choi1, Tracie Harrison2
1Department of Kinesiology and Community Health, University of Illinois at Urbana-Champaign, Urbana, IL, USA.
Abstract:
The study aimed to investigate the mediating effect of fatigue and the moderating effect of sleep quality on stress and depressive symptoms among people with visual impairments. A total of 155 participants completed the online survey. The Perceived Stress Scale, the Fatigue Symptom Inventory, the Centre for Epidemiological Studies-Depression Inventory (CES-D), and the Pittsburgh Sleep Quality Index (PSQI) were used. Descriptive analysis, correlations, and moderated mediation modelling were conducted using R software. From the mediator variable (FSI) model (F = 22.427, R2 = 56.5, p < .001) and the dependent variable (CES-D) model (F = 35.912, R2 = 70.5, p < .001), after controlling for age, sex, employment, and education, sleep quality positively predicted fatigue levels (β = 2.422, p = .009), and fatigue positively predicted depressive symptoms (β = .152, p < .001). Sleep quality is an essential component of psychological well-being in people with visual impairments.
More Related Videos
Related Concept Videos
Depression: Overview
Insufficient Sleep and Sleep Deprivation
Sleep deprivation is a more severe form of sleep loss...
Stress and Mental Health
Individuals with depression often experience challenges in both their personal and professional...
Depressive Disorders: Etiology
Biological Factors in Depression
Biological predispositions significantly influence the risk of developing depressive disorders. Genetic studies highlight the role of variations in the serotonin transporter...
Psychological Responses to Stress
Depressive Disorders: MDD and Dysthymia

