Results 71 to 80 of about 59,137 (242)

Die Sprachentwicklung von Ein-und Zweieiigen Zwillingen und die Vererbung von Sprachstörungen [PDF]

open access: yes, 2017
The genetic roots of speech development in children are being investigated. On the basis of observations in the development of speech in 12 monozygotic twin pairs it could be shown that not only the retarded but also the normal development of speech is ...
Luchsinger, R.
core  

Multivariate maternal effects across the internalizing–externalizing spectrum in childhood: results from the Norwegian mother, father, and child cohort study

open access: yesJournal of Child Psychology and Psychiatry, EarlyView.
Background From a functionalist perspective, parenting behaviors have adaptive functions and are partly expressions of genetic variation. Maternal genes that have effects on children are often referred to as indirect maternal genetic effects. Indirect genetic effects provide a means for measuring the role of parenting without the need for specifying ...
Espen Moen Eilertsen   +8 more
wiley   +1 more source

Gender differences in like-sex middle-aged twins: an extended network analysis of depressive symptoms, cognitive functions and leisure activities

open access: yesEuropean Psychiatry
Background Depression affects twice as many women as men. Risk factors for depression certainly impact this difference, but their strong interconnectedness challenges the assessment of standalone contributions.
Daiyan Zhang, Maria Semkovska
doaj   +1 more source

Psycho‐social factors associated with disagreement between prospective and retrospective measures of childhood maltreatment

open access: yesJournal of Child Psychology and Psychiatry, EarlyView.
Background Prospective and retrospective measures of childhood maltreatment often identify different individuals and are differentially associated with psychopathology. This study examines psycho‐social factors that may explain discrepancies between these measures.
Oonagh Coleman   +5 more
wiley   +1 more source

Marital Status and Unobserved Heterogeneity - Do twins suggest a genetic inheritance? [PDF]

open access: yes
The purpose of this study is to reveal the importance of unobserved heterogeneity on marital status. The results for monozygotic (identical) and dizygotic twins indicate an important genetic component in marital status.
Nilsson, William
core   +1 more source

Are Wednesday's Children Full of Woe? Children's Differences in Personality Are Independent of Day of Birth

open access: yesJournal of Personality, EarlyView.
ABSTRACT Introduction Nursery rhymes, which are rich in literary devices, benefit children's language learning. Less is known about the influence that nursery rhymes' messages may have on children's development. We focused on “Monday's Child,” a popular nursery rhyme that alleges children's day of the week of birth forecasts their differences in ...
Emily Wood   +8 more
wiley   +1 more source

Does Early Life Health Predict Schooling Within Twin Pairs? [PDF]

open access: yes
A large number of studies in labor economics estimate the returns to schooling using data on monozygotic twins, under the assumption that educational attainment is random within twin pairs. This exogeneity assumption has been commonly questioned, however,
Lundborg, Petter   +2 more
core  

Is humn mating adventitious or the result of lawful choice? A twin study of mate selection. [PDF]

open access: yes, 1993
Inventory data on a large sample of middle-aged twins and their spouses confirmed that spousal pairs are consistently but weakly similar on traits of personality, interests, talents, and attitudes.
Lykken, D.T., Tellegen, A.
core  

Genetic Susceptibility to Periodontitis

open access: yesJournal of Periodontal Research, EarlyView.
Aim: The aim of this narrative review was to identify genes carrying risk alleles associated with an increased risk of periodontitis and to place them in a biological context. Methods: The literature was reviewed based on predefined criteria. Results: The identified genes largely fall into functions linking immune response with tissue repair. The genes
Gesa M. Richter, Arne S. Schaefer
wiley   +1 more source

Discordance in monozygotic Parkinson's disease twins – continuum or dichotomy?

open access: yesAnnals of Clinical and Translational Neurology, 2019
Differences in concordance rates between monozygotic and dizygotic twin pairs with Parkinson's disease (PD) have been used to estimate genetic influences in PD pathogenesis.
Alexander Balck   +6 more
doaj   +1 more source

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