Connecting loneliness with pathological personality traits: Evidence for genetic and environmental mediation from a study of older twins.

Colin D. Freilich, M. McGue, Susan C. South, Glenn I. Roisman, R. Krueger
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引用次数: 1

Abstract

Loneliness has broad public health importance, especially in older adulthood, and there is some evidence suggesting it is associated with several personality disorders (PDs). The etiology of these PD-loneliness associations, however, has rarely been studied, especially in the context of the maladaptive traits of the DSM-5 alternative model of personality disorder (AMPD). To address these limitations, we estimated phenotypic, genetic, and unique environmental associations between loneliness and maladaptive personality traits in a sample of older adults from the Minnesota Twin Registry (n = 1,356, Mage = 70.4). Loneliness was moderately to strongly associated with each of the AMPD domains of negative affect, detachment, antagonism, disinhibition, and psychoticism (r = .22-.58), with evidence of both genetic (rg = .45-.75) and unique environmental (re = .10-.48) influences explaining the associations to varying degrees. We argue that loneliness may be an underappreciated concomitant of personality pathology, with PD traits perhaps underlying its development. Indeed, these findings suggest that loneliness may be a manifestation of the genetic and environmental forces that also lead to pathological personality variation. (PsycInfo Database Record (c) 2023 APA, all rights reserved).
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将孤独与病态人格特征联系起来:来自年长双胞胎研究的遗传和环境调解的证据。
孤独具有广泛的公共健康重要性,特别是在老年人中,并且有证据表明它与几种人格障碍(pd)有关。然而,这些pd -孤独感关联的病因学很少被研究,特别是在DSM-5另类人格障碍模型(AMPD)的适应不良特征的背景下。为了解决这些局限性,我们估计了来自明尼苏达州双胞胎登记处的老年人样本(n = 1356, Mage = 70.4)中孤独感和适应不良人格特征之间的表型、遗传和独特环境关联。孤独感与消极情绪、疏离、对抗、去抑制和精神病等AMPD各域有中度到强烈的关联(r = 0.22 - 0.58),遗传(r = 0.45 - 0.75)和独特环境(r = 0.10 - 0.48)的影响在不同程度上解释了这些关联。我们认为孤独可能是人格病理学的一种未被充分认识的伴随物,PD特征可能是其发展的基础。事实上,这些发现表明,孤独可能是遗传和环境力量的一种表现,也会导致病态人格变异。(PsycInfo数据库记录(c) 2023 APA,版权所有)。
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