Esteller Àngels, Poy Rosario, Moltó Javier
Department of Basic and Clinical Psychology and Psychobiology, Universitat Jaume I, Avenida Sos Baynat s/n, 12071 Castellón, Spain.
Department of Basic and Clinical Psychology and Psychobiology, Universitat Jaume I, Avenida Sos Baynat s/n, 12071 Castellón, Spain.
Biol Psychol. 2016 May;117:131-140. doi: 10.1016/j.biopsycho.2016.03.012. Epub 2016 Mar 24.
This study examined the contribution of the phenotypic domains of boldness, meanness, and disinhibition of the triarchic conceptualization of psychopathy (Patrick, Fowles, & Krueger, 2009) to deficient aversive-potentiated startle in a mixed-gender sample of 180 undergraduates. Eyeblink responses to noise probes were recorded during a passive picture-viewing task (erotica, neutral, threat, and mutilation). Deficient threat vs. neutral potentiation was uniquely related to increased boldness scores, thus suggesting that the diminished defensive reaction to aversive stimulation is specifically linked to the charm, social potency and venturesomeness features of psychopathy (boldness), but not to features such as callousness, coldheartedness and cruelty traits (meanness), even though both phenotypes theoretically share the same underlying low-fear disposition. Our findings provide further evidence of the differential association between distinct psychopathy components and deficits in defensive reactivity and strongly support the validity of the triarchic model of psychopathy in disentangling the etiology of this personality disorder.
本研究在一个由180名本科生组成的混合性别样本中，考察了精神病态三元概念化（帕特里克、福尔斯和克鲁格，2009）中的大胆、冷酷和抑制解除这些表型领域对厌恶性增强惊吓反应缺陷的影响。在一个被动图片观看任务（色情、中性、威胁和残害图片）中记录对噪声刺激的眨眼反应。威胁图片与中性图片相比增强反应的缺陷与大胆得分的增加有独特关联，因此表明对厌恶性刺激防御反应的减弱与精神病态的魅力、社交效能和冒险性特征（大胆）有特定联系，但与冷漠、无情和残忍特质（冷酷）等特征无关，尽管这两种表型理论上都具有相同的潜在低恐惧倾向。我们的研究结果为不同的精神病态成分与防御反应缺陷之间的差异关联提供了进一步证据，并有力支持了精神病态三元模型在理清这种人格障碍病因方面的有效性。
