Do Sleep Disturbances and Psychotic-Like Experiences in Adolescence Share Genetic and Environmental Influences?

Journal of Abnormal Psychology Do Sleep Disturbances and Psychotic-Like Experiences in Adolescence Share Genetic and Environmental Influences?

Running head : SLEEP AND PSYCHOTIC - LIKE EXPERIENCES Do sleep disturbances and psychotic - like experiences in adolescence share genetic and environmental influences ?

Sleep disturbances regularly co-occur with clinical psychotic disorders and dimensions of psychotic-like experiences (PLEs). One possible explanation for this, which has yet to be tested, is that similar genetic or environmental influences underlie sleep disturbances and vulnerability to PLEs. We conducted a twin study to test this possibility in relation to sleep disturbances and six specific ...

Association between stressful life events and psychotic experiences in adolescence: evidence for gene–environment correlations

BACKGROUND Stressful life events (SLEs) are associated with psychotic experiences. SLEs might act as an environmental risk factor, but may also share a genetic propensity with psychotic experiences. AIMS To estimate the extent to which genetic and environmental factors influence the relationship between SLEs and psychotic experiences. METHOD Self- and parent reports from a community-based t...

Cannabis and psychotic experiences 1 Psychotic experiences are linked to cannabis use in adolescents in the community because of common underlying environmental risk factors

Cannabis users are more likely to have psychotic experiences (PEs). The degree to which these associations are driven by genetic or environmental influences in adolescence is unknown. This study estimated the genetic and environmental contributions to the relationship between cannabis use and PEs. Specific PEs were measured in a community-based twin sample (4,830 16-year-old pairs) using self-r...

A longitudinal twin study of the association between childhood autistic traits and psychotic experiences in adolescence

BACKGROUND This twin study investigated whether autistic traits during childhood were associated with adolescent psychotic experiences. METHODS Data were collected from a community sample of approximately 5000 twin pairs, which included 32 individuals with diagnosed autism spectrum conditions (ASC). Parents rated autistic traits in the twins at four points between ages 8-16 years. Positive, n...