Association between morningness-eveningness and temperament and character in community-dwelling Korean adults
2014
Introduction
Previous studies have reported an association between biogenetic temperament/character and circadian preference in Spanish or French college students. Our aim is to investigate the association between temperament/character and circadian preference in psychiatrically healthy, community-dwelling Korean adults of a wide age range.
Methods
Subjects free of Axis I disorders (n = 342) completed the Morningness-Eveningness Questionnaire and the Temperament and Character Inventory.
Results
High Novelty Seeking and low Self-Directedness was associated with eveningness. In contrast to prior studies on college students, eveningness was associated with high (not low) Harm Avoidance. Eveningness-Novelty Seeking association and Eveningness-Harm Avoidance association were prominent in females. Eveningness-Novelty Seeking was prominent in the older group (age ≥40), while Eveningness-Harm Avoidance was prominent in the younger group (age ≤40).
Discussion
Despite the limitation of the small sample size, the present study suggests that eveningness is associated with high Novelty Seeking/Harm Avoidance and low Self-Directedness in community-dwelling adults, and that this association may be related to age, gender, and other sociocultural factors.
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