Blanch Angel, Balada Ferran, Aluja Anton
Department of Psychology, University of Lleida, Spain; Institute of Biomedical Research (IRB Lleida), Spain.
Department of Psychology, University of Lleida, Spain; Institute of Biomedical Research (IRB Lleida), Spain; Department of Psychobiology, Institute of Neurosciences, Autonomous University of Barcelona, Spain.
Int J Psychophysiol. 2014 Mar;91(3):232-9. doi: 10.1016/j.ijpsycho.2014.01.001. Epub 2014 Jan 9.
This study analyzed the relationship of individual differences in personality with habituation in the acoustic startle response (ASR). Data from nine trials in ASR to white noise bursts and a personality questionnaire based on the alternative big five personality approach were modelled with a latent growth curve (LCM) including intercept and slope habituation growth factors. There was a negative correlation between the intercept and slope, indicating that individuals with higher initial ASR levels had also a more pronounced and faster decrease in the ASR. Contrary to expectations, Extraversion and Sensation Seeking did not relate with habituation in ASR. Neuroticism and Aggressiveness related asymmetrically with the habituation rate in ASR. Higher levels of Neuroticism were related with faster habituation, whereas higher levels of Aggressiveness were related with slower habituation. Further studies with the LCM should be undertaken to clarify in a greater extent the association of personality with habituation in ASR.
本研究分析了人格个体差异与听觉惊吓反应（ASR）中的习惯化之间的关系。基于替代大五人格方法的ASR对白噪声猝发的九次试验数据和一份人格问卷，采用了包含截距和斜率习惯化增长因子的潜在增长曲线（LCM）进行建模。截距与斜率之间存在负相关，表明初始ASR水平较高的个体，其ASR的下降也更为显著和迅速。与预期相反，外向性和感觉寻求与ASR中的习惯化无关。神经质和攻击性与ASR中的习惯化率呈不对称相关。较高水平的神经质与更快的习惯化相关，而较高水平的攻击性与较慢的习惯化相关。应采用LCM进行进一步研究，以更全面地阐明人格与ASR中习惯化的关联。
