Diurnal preferences have been linked to personality but often with mixed results. The present study examines the relationships between sleep timing (chronotype), diurnal preferences, and the Five-Factor Model of personality traits at the phenotypic and genetic level.

中文翻译：

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人格特质与表型和遗传水平的表型有关

昼夜偏好与个性有关，但结果往往好坏参半。本研究在表型和遗传水平上检查睡眠时间（时间表）、昼夜偏好和人格特征的五因素模型之间的关系。