Heritability of tic disorders: a twin-family study
نویسندگان
چکیده
منابع مشابه
Heritability of tic disorders: a twin-family study.
BACKGROUND Genetic-epidemiological studies that estimate the contributions of genetic factors to variation in tic symptoms are scarce. We estimated the extent to which genetic and environmental influences contribute to tics, employing various phenotypic definitions ranging between mild and severe symptomatology, in a large population-based adult twin-family sample. METHOD In an extended twin-...
متن کاملFamily transmission and heritability of externalizing disorders: a twin-family study.
BACKGROUND Antisocial behavior and substance dependence disorders exact a heavy financial and human cost on society. A better understanding of the mechanisms of familial transmission for these "externalizing" disorders is necessary to better understand their etiology and to help develop intervention strategies. OBJECTIVES To determine the extent to which the family transmission of externalizi...
متن کاملHeritability of life satisfaction in adults: a twin-family study.
BACKGROUND Subjective well-being (SWB) can be partitioned into the components life satisfaction and affect. Research on factors influencing these components of well-being has mainly focused on environmental characteristics. The aim of this study was to investigate the relative contribution of genes and environment to individual differences in life satisfaction in a large sample of Dutch twins a...
متن کاملHeritability of clubfoot: a twin study
INTRODUCTION The aetiology of congenital clubfoot is unclear. Although studies on populations, families, and twins suggest a genetic component to the aetiology, other studies have identified environmental factors. The purpose of this study was to calculate heritability in order to determine to what extent genetic and/or environmental factors contribute to the aetiology of congenital clubfoot an...
متن کاملHeritability of macular pigment: a twin study.
PURPOSE Several studies have reported higher levels of macular pigment (MP) in association with reduced risk for age-related macular degeneration (ARMD), a disease to which there is a genetic predisposition. A classic twin study was performed to determine the heritability of MP in the healthy eye. METHODS One hundred fifty twin pairs (76 monozygotic [MZ] and 74 dizygotic [DZ]), aged 18 to 50 ...
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ژورنال
عنوان ژورنال: Psychological Medicine
سال: 2016
ISSN: 0033-2917,1469-8978
DOI: 10.1017/s0033291716002981