近日,，研究表明基因可能對成功的生活起到關(guān)鍵作用，相關(guān)研究論文刊登在Journal of Personality雜志上,。
新的研究表明基因在形成性格特征如自我控制,、決策或社交性中發(fā)揮更大的作用,。
這項超過800對雙胞胎的研究發(fā)現(xiàn)，基因比一個人的家庭環(huán)境及周邊地區(qū)對關(guān)鍵性格的塑造有影響力,。
愛丁堡進行了該項研究,，大學心理學家們認為基因影響的性格特征很可能是在一個人生活中成功與否的關(guān)鍵。
在這項研究中,，50歲及以上的參試者采用了一系列的問題以測試他們?nèi)绾胃兄约汉退?。問題包括“你受有強烈意見的人的影響嗎？你失望于你在生活中的成就嗎,？
根據(jù)Ryff心理幸福感量表評估和標準化這些特征后,，研究人員測量了結(jié)果。
通過跟蹤他們的答案,，研究小組發(fā)現(xiàn)同卵雙胞胎,，其DNA是完全相同的，其可能分享性狀與非異卵雙胞胎相比有明顯差異,。心理學家說,，因為遺傳基因聯(lián)系越強，就越有可能具備某些性格特征,。（生物谷：Bioon.com）
doi:10.1111/j.1467-6494.2012.00787.x
PMC:
PMID:
Genetic influences on psychological well-being: A nationally representative twin study
Despina Archontaki1, Gary J. Lewis1, Timothy C. Bates1,2,*
OBJECTIVE: Psychological well-being, or eudaimonia, features strongly in theories of human development and thriving. However, the factors of eudaimonia are debated, and their genetic architecture has not been studied in detail.
METHOD: A classical twin design was used to decompose behavioral variance into genetic and environmental components implemented in a multi-group, multivariate structural equation modeling framework. Subjects were 837 pairs of adult US twins from the nationally representative MIDUS II sample. Psychological well-being was measured using the 42-item Ryff Psychological Well-being Scale, which assesses autonomy, environmental mastery, personal growth, positive relations with others, purpose in life, and self-acceptance.
RESULTS: Substantial genetic influences were observed on all components of well-being. Attempts to model these 6-factors as reflecting a single common psychological mechanism gave a poor fit to the data. The best-fitting model supported the existence of five distinct genetic effects. Effects of shared-environment were weak and non-significant. Unique-environment effects for all measures were mostly trait specific.
CONCLUSIONS: These results indicate that psychological well-being is underpinned by a general genetic factor influencing self-control, and four underlying biological mechanisms enabling the psychological capabilities of purpose, agency, growth, and positive social relations.
