Evening chronotype, alcohol use disorder severity, and emotion regulation in college students.
Emotions, Humans, Emotional Regulation, Alcoholism, Students
The evening chronotype is strongly associated with greater alcohol use, though mechanisms underlying this association are not well understood. The current study evaluated emotion regulation as a potential mechanism linking evening chronotype and alcohol use. Participants were 81 undergraduate students. Chronotype was assessed using the Composite Scale of Morningness (CSM). Alcohol use disorder severity was assessed using the Alcohol Use Disorder Identification Test (AUDIT). Participants recorded daily sleep patterns using an online diary for seven days. Participants then completed a standardized laboratory emotion regulation task. Self-reported affect, high-frequency heart rate variability (HF-HRV), and pre-ejection period (PEP) were measured throughout the task. Sleep duration on non-free days (defined as days when sleep was restricted by morning obligations such as work or school) was evaluated as a moderator. Thirty-one evening chronotypes (CSM scores ≤ 26) were compared to 50 non-evening chronotypes (CSM scores >26). Evening chronotypes reported significantly greater symptoms of alcohol use disorder (
Taylor, Briana J; Bowman, Marissa A; Brindle, Alicia; Hasler, Brant P; Roecklein, Kathryn A; Krafty, Robert T; Matthews, Karen A; and Hall, Martica H, "Evening chronotype, alcohol use disorder severity, and emotion regulation in college students." (2020). Maine Medical Center. 1896.