Sentences with phrase «twin studies»

A longitudinal twin study of insomnia symptoms in adults.

I believe that these three studies add an interesting perspective that considers addictive behaviors such a smoking, alcohol consumption, and gambling, and their connection with psychological disorders in twin studies.

A pair of longitudinal twin studies, for example, found no significant link between marijuana use and IQ.

Previous offspring twin studies suggest that the association between parent antisocial behaviour and child hyperactivity is genetic whilst the association to child conduct disturbance has genetic and environmental influences [32].

Evidence from twin studies notwithstanding, the search for specific genes linked to major depression has come up empty [52, 53].

Past behavior genetics research using twin study survey data has shown genetic influence on a wide range of communication behaviors.

For instance, a recent twins study determined that the strength of our body's defense system depends less on genes and more on environmental influences.

Four twin studies on child - mother attachment security using behavioural genetic modelling have been published to date.

Research like the Danish Twin Study has shown that over 90 % of how long we live is determined by the choices we make.

But the new twin study does have its limits.

I was particularly impressed by twin studies and what happens when you observe their behavior when they're raised together vs. being raised apart.

The team previously established through a classical twin study that chronic fatigue has a genetic component.

This research constitutes the first twin study - based examination of genetic and environmental factors that contribute to both low attention control and four distinct anxiety symptoms in early adolescence.

However, the general conclusion that shared environmental effects are negligible does not rest on twin studies alone.

Past twin studies of autism had flaws, however.

A major international twin study hopes to investigate the relative roles of genetic and environmental influences on singing ability.

The power limitations of relatively small twin studies are not trivial.

We're more than the product of our genes and environment, twin studies show.

Research like the Danish Twin Study have shown that over 90 % of how long we live is determined by the choices we make, not our genetics.

Twin pairs (N = 1350), aged 8 to 16 years, in the general population - based Virginia Twin Study of Adolescent Behavioral Development were assessed using the Child and Adolescent Psychiatric Assessment interview administered separately to both twins and both parents.

A recent twin study found that in the case of identical twins, who have identical genetics, If one of the twins is gay their is about a 50 % chance that the other twin will identify as gay.

Consider all the incredible identical twin studies in which they are separated at birth and meet decades later to find that they are wearing the same color, are married to women with the same name, pursue the same career and have named their children identically.

In most of my research, family, adoptive, and twin study designs are used to investigate the development and etiology of common mental disorders, including substance use, antisocial, and major depressive disorders.

A large twin study suggested that child eating behaviours are already established by the age of 4 years, and remain stable thereafter [28], and so young children are a particularly important target group for identifying the risk and protective factors for healthy eating.

Edwards and her colleagues used data collected in Wave Three of the Virginia Adult Twin Study of Psychiatric and Substance Use Disorders.

Not only do adoption studies support a genetic basis for personality disorders that are shown to have a relation to criminality, but twin studies as well.

A population - based twin study of major depression in women: the impact of varying definitions of illness

In the Louisville Twin Study (LTS), Finkel and Matheny [76] found a significant difference between concordances of attachment classifications of 99 monozygotic (MZ) and 108 dizygotic (DZ) two - year - old twins.

Citing a Swedish twin study in which 1,400 participants were asked to describe their parents, twins raised together gave more similar descriptions than twins not raised together.

These findings could explain why twin studies show that ho - mose - xuality runs in families, but no «gay gene» can be found, Rice said.

People also need to realize that a lot of personality traits come from their genes, not their parents nurturing, as this can be seen in the separated twin studies (Harris, 1998).

Although prior twin studies had hinted that nonheritable factors contribute to some autoimmune disorders, such as multiple sclerosis, the recent analysis was one of the first to quantify genetic and environmental effects on the general immune system.

Numerous twin studies suggest the more a person diets the more disordered their eating (article explaining many here).

Using a behavior genetics framework and twin study data from the 2013 Midlife in the United States (MIDUS III) survey, York examined how both environmental and genetic factors contribute to social media use by applying an analytical model called Defries - Fulker (DF) Regression.

Although twin studies of attachment are providing mixed results, molecular genetic studies are showing that specific genetic polymorphisms of the dopaminergic and serotonergic neurotransmisson systems may moderate the statistically identified links between caregivers» behaviour and infant attachment.

This fact, together with twin studies, suggests that there are many paths that may lead to GD in certain biologically vulnerable children.

Identical twin studies establish that post-natal environmental factors exert a significant influence over the development of GD and transgenderism.

A recent twin study looked into whether there's a genetic association between autistic traits and atypical sensory...

Evidence includes: «moderate genetic influences demonstrated in well - sampled twin studies; the cross-culturally robust fraternal - birth - order effect on male sexual orientation; and the finding that when infant boys are surgically and socially «changed» into girls, their eventual sexual orientation is unchanged (i.e., they remain sexually attracted to females).

The speech disorder tends to run in families, and twin studies indicate that it is about 50 % to 70 % heritable.

Twin studies conducted at the Auschwitz concentration camp in 1943 and 1944 became a central part of this effort.

Twin studies did not get back on their feet until 1979.

A recent study by a researcher at the Kent State University found that genetics outweighed environment in social media use using twin study survey data.

IEA, composed mostly of European nations and the United States, found in twin studies released yesterday that solar photovoltaic (PV) and concentrated solar power (CSP) together could account for about 22 percent of global electricity production by 2050 under the right conditions.

Constellation of factors Twin studies have shown that identical twins (who share the same genes) are more likely to both suffer from the disorder than fraternal twins, which has demonstrated that «there's a large genetic component to the disorder,» Cantor says.

Last summer a team of researchers in Sweden and Finland got a lot of publicity when they concluded, from data obtained from large Scandinavian twin studies, that inherited factors make a «minor contribution» to most cancers.

The researchers looked at three different twin studies from Sweden, the United States and Denmark where both intelligence and age of death was recorded, and where at least one twin in each pair had died.