Adolescent Twins' Social/Interpersonal Pleasure and other Positive Affect Ratings: A Genetic Inquiry

These data include demographic and self-report data for 177 MZ and 136 same sex DZ adolescent twins (Mean age = 16.4 ± .97 years). The sample was part of the Wisconsin Twin Project. The main questionnaire of interest was the adolescent version of the Anticipatory and Consummatory Interpersonal Pleasure Scale (ACIPS-A), administered along with other self-report scales tapping aspects of positive affect (PA). The other scales included in the analyses included the Behavioral Activation Scale (BAS), Psychological Well-Being Scale, and revised Early Adolescent Temperament Questionnaire (EATQR). We expected associations between measures of PA and social/interpersonal pleasure, as measured by the ACIPS-A. Structural equation modeling estimated the relative contribution of genetic and environmental factors to the phenotypic variance in each of the measures. Followup bivariate analyses parsed the genetic and environmental contributions to the phenotypic covariances between the ACIPS-A and each of the other measures of PA. Main findings include the following: 1) moderate heritability for the ACIPS-A scale scores; 2) models specifying additive genetic and unique environmental effects (AE models) were the most parsimonious models for each of the measures; and 3) although several measures showed moderate positive associations with each other, bivariate biometric analyses indicated that the ACIPS-A also captures unique heritable variation.本数据集包含177对同卵双生子（Monozygotic, MZ）与136对同性异卵双生子（Dizygotic, DZ）青少年双生子的人口统计学及自评数据，被试平均年龄为16.4±0.97岁。该样本隶属于威斯康星双生子项目（Wisconsin Twin Project）。本研究关注的核心问卷为青少年版预期与体验性人际愉悦量表（Anticipatory and Consummatory Interpersonal Pleasure Scale, ACIPS-A），该量表与其他用于测评积极情感（positive affect, PA）多个维度的自评量表一同施测。本次分析纳入的其余量表包括行为激活量表（Behavioral Activation Scale, BAS）、心理幸福感量表，以及修订版青少年早期气质问卷（revised Early Adolescent Temperament Questionnaire, EATQR）。我们预期积极情感测评指标与ACIPS-A所测得的社交/人际愉悦程度之间存在关联。 研究采用结构方程模型（Structural Equation Modeling）估计了遗传与环境因素对各项测评指标表型方差的相对贡献。后续开展的双变量分析进一步解析了ACIPS-A与其余各项积极情感测评指标之间的表型协方差的遗传与环境贡献来源。 主要研究结果如下：1）ACIPS-A量表得分具有中等程度的遗传力；2）针对所有测评指标，包含加性遗传与独特环境效应的模型（AE模型）均为最简约模型；3）尽管多项测评指标间呈现中等程度的正相关，但双变量生物计量学分析表明，ACIPS-A同时还捕捉到了独特的遗传变异。