Relationship Between Big Five Personality Dimensions, Chronotype, and DSM-V Personality Disorders

Area of Science:

• Psychiatry
• Chronobiology
• Personality Psychology

Background:

• Morningness-eveningness (M/E) influences health and is linked to mental instability.
• Previous research suggests eveningness correlates with personality disorders (PDs).
• The relationship between M/E and PDs has not been empirically tested.

Purpose of the Study:

• To investigate the association between circadian timing (M/E) and DSM-5 personality disorder traits.
• To explore the predictive value of M/E and daily energy fluctuations on PDs.

Main Methods:

• Utilized the Morningness-Eveningness Stability Scale improved and clock time-based measurements.
• Administered the PID-5 brief version for personality disorder traits and the Big Five brief version.
• Sample comprised 630 participants (mean age 27.76 years, 137 male, 489 female).

Main Results:

• Eveningness correlated positively with higher PID-5 scores (r=0.153, p<0.001).
• Higher daily energy fluctuations (distinctness) predicted higher PID-5 scores (r=0.299, p<0.001).
• Neuroticism was positively associated with PID-5 scores, while extraversion, agreeableness, and conscientiousness were negatively associated.

Conclusions:

• A significant relationship exists between eveningness and personality disorder traits.
• Daily energy fluctuations are a strong predictor of personality disorder pathology.
• Chronotype and personality traits are interconnected, impacting mental health outcomes.