Cognitive-Affective and Somatic Depressive Symptom Domains Related to Psychological Mechanisms and Sociodemographic Factors

作者：Danielle Hazeltine · 发表于：CUNY Academic Works (City University of New York) · 年份：2026 · 研究领域：Anxiety, Depression, Psychometrics, Treatment, Cognitive Processes、Mental Health Research Topics、Treatment of Major Depression

Major depressive disorder is prevalent, chronic, and heterogeneous, including cognitive- affective (e.g., maladaptive beliefs or thinking patterns and sad mood) and somatic (e.g., fatigue, appetite, or sleep changes) symptom domains. While depression domains have been long theorized, research examining psychological mechanisms underlying this distinction is limited. Preliminary research suggests cognitive-affective symptoms relate more strongly to cognitive mechanisms (cognitive bias, perseverative thought), somatic symptoms relate more strongly to behavioral mechanisms (behavioral inhibition/activation), and gender, race, and ethnicity moderate these relationships. This study examined whether cognitive-affective and somatic symptom domains differentially relate to cognitive and behavioral mechanisms, and whether these relationships are moderated by gender, race, and ethnicity, both cross-sectionally and prospectively (4-week follow up). Adult community and student participants (N = 433) completed online self-report measures of perseverative thought, cognitive bias (following a negative mood induction), behavioral inhibition/activation, and depressive symptoms. Associations between mechanisms and symptom domains were tested with bootstrapped ridge regression. Moderation by gender, race, and ethnicity was tested using ridge interaction and OLS moderation. Cognitive and behavioral mechanisms were associated with both symptom domains, with no evidence of domain-specific associat...