Pedrero Pérez Eduardo José
CAD 4 San Blas. Instituto de Adicciones. Ayuntamiento de Madrid. C/ Alcalá, Madrid, Spain.
Adicciones. 2009;21(1):29-37.
To know the underlying dimensional structure of personality disorders in the MCMI-II through factor analysis.
A sample of 749 patients who start a treatment by substance abuse or dependence, according to DSM-IV criteria, compliment the MCMI-II, once free of the direct influences (intoxication, withdrawal) of abuse drugs. Their answers in the MCMI-II were studied, through first and second order factorial analysis.
An initial factorial solution of 46 components is obtained. The first of them refers to changes experienced in last years, explaining 25.51% of the variance. A second order factor analysis groups the former factors in 7 components. The first of them reunites symptoms of Axis I around the components of change in two last years and in the last months and weeks (14.17% of the total variance). The other components reflect those dimensions usually found in some other factor studies of personality.
Results show that a wide proportion of the variance in the MCMI-II is better explained by recent changes than stable traits and their extreme combinations. As these results are obtained in substance addict population, it is suggested part of which the MCMI-II measures can be referred to changes in personality. These changes may be associated to inadequate answers to stressful environmental factors. They can be also associated to changes in brain functions due to direct or indirect influences of substances on brain locations.
通过因素分析了解明尼苏达多项人格问卷第二版（MCMI-II）中人格障碍的潜在维度结构。
选取749名根据《精神疾病诊断与统计手册》第四版（DSM-IV）标准开始接受药物滥用或依赖治疗的患者作为样本，在他们摆脱滥用药物的直接影响（中毒、戒断）后完成MCMI-II测试。通过一阶和二阶因素分析研究他们在MCMI-II中的答案。
得到了一个包含46个成分的初始因素解。其中第一个因素涉及过去几年经历的变化，解释了25.51%的方差。二阶因素分析将前几个因素归为7个成分。第一个成分将轴I的症状围绕过去两年以及过去数月和数周的变化成分重新组合（占总方差的14.17%）。其他成分反映了在一些其他人格因素研究中通常发现的那些维度。
结果表明，MCMI-II中很大一部分方差由近期变化而非稳定特质及其极端组合能更好地解释。由于这些结果是在药物成瘾人群中获得的，因此有人提出MCMI-II所测量的部分内容可能与人格变化有关。这些变化可能与应对压力环境因素的不充分反应有关。它们也可能与药物对脑区的直接或间接影响导致的脑功能变化有关。
