Department of Psychiatry and Clinical Psychobiology, School of Psychology, University of Barcelona, Barcelona, Spain.
Chronobiol Int. 2010 May;27(3):606-19. doi: 10.3109/07420521003663827.
The present study explores the relationships between functional and dysfunctional impulsivity factors, circadian typology, and sex. A sample of 850 university students (396 men) aged between 18 and 33 yrs of age completed the Dickman's Impulsivity Inventory (DII) and reduced morningness-eveningness questionnaire (rMEQ). Factorial analysis showed a dimensional clustering with satisfactory item saturation for both dimensions of impulsivity, especially in men and evening-type. Men presented higher values than women for functional and dysfunctional impulsivity, while morning-type subjects obtained lower scores in dysfunctional impulsivity than the neither- and evening-types. An interactive effect between circadian typology and sex was obtained for dysfunctional impulsivity. Higher scores in men for dysfunctional impulsivity were found in neither- and evening-types, while no significant differences were obtained between men and women in the morning-type group. The morning-type typology can be considered a protective factor for impulse control disorders, especially in men, but further research is needed on the clinical and neurobiological implications of our results.
本研究探讨了功能性和非功能性冲动因素、昼夜类型和性别的关系。一个由 850 名大学生（396 名男性）组成的样本，年龄在 18 到 33 岁之间，完成了 Dickman 的冲动性量表（DII）和简化的早晨-晚上问卷（rMEQ）。因子分析显示，冲动性的两个维度具有维度聚类，并且具有令人满意的项目饱和度，尤其是在男性和夜间型中。男性在功能性和非功能性冲动性方面的得分均高于女性，而在非功能性冲动性方面，晨型受试者的得分低于非晨型和夜间型受试者。昼夜类型和性别的相互作用在非功能性冲动性方面存在。在非晨型和夜间型中，男性的非功能性冲动性得分较高，而在晨型组中，男性和女性之间没有显著差异。晨型类型可以被认为是冲动控制障碍的保护因素，尤其是在男性中，但需要进一步研究我们结果的临床和神经生物学意义。
