Gene-environment interplay

Gene-environment interplay.

Gene-environment Interplay in Twin Models Gene-environment Interplay in Twin Models

In this article, we respond to Shultziner’s critique that argues identical twins are more alike not because of genetic similarity, but because they select into more similar environments and respond to stimuli in comparable ways, and these effects bias twin model estimates to such an extent that they are invalid. The essay further argues that the theory and methods that undergird twin models, as...

Gene-Environment Interplay in Twin Models

In this article, we respond to Shultziner's critique that argues that identical twins are more alike not because of genetic similarity, but because they select into more similar environments and respond to stimuli in comparable ways, and that these effects bias twin model estimates to such an extent that they are invalid. The essay further argues that the theory and methods that undergird twin ...

Gene-environment interplay between cannabis and psychosis.

Cannabis use is considered a contributory cause of schizophrenia and psychotic illness. However, only a small proportion of cannabis users develop psychosis. This can partly be explained by the amount and duration of the consumption of cannabis and by its strength but also by the age at which individuals are first exposed to cannabis. Genetic factors, in particular, are likely to play a role in...

Gene-environment interplay and psychopathology: multiple varieties but real effects.

Gene-environment interplay is a general term that covers several divergent concepts with different meanings and different implications. In this review, we evaluate research evidence on four varieties of gene-environment interplay. First, we consider epigenetic mechanisms by which environmental influences alter the effects of genes. Second, we focus on variations in heritability according to env...