Sex differences in verbal fluency during adolescence : a functional magnetic resonance imaging study in gender dysphoric and control boys and girls. CD was associated with cortical thinning and higher gyrification in ventromedial prefrontal cortex in both sexes. A combination of factors across the individual, relationship, and community level were significantly associated with SV perpetration and there were both shared and unique factors across the relationship types.
Other marijuana use variables e. Sex selection: treating different cases differently.
The findings suggest that the window of heightened vulnerability to risk-taking during adolescence may be greater in magnitude and more protracted for males than for females. Not only do the differences between the ovarian and testicular hormonal milieu contribute to this sexual dimorphism in blood pressure, the sex chromosomes also play a role in and of themselves.
The possible neuroendocrine mechanisms mediating these sex differences are discussed. Although boys have historically had a higher prevalence of marijuana use, results indicate that male-female differences in marijuana use decreased over time.
We then integrate these recent findings into models of adolescent vulnerability to substance use that have previously not addressed sex differences. To the best of our knowledge, this is the first functional magnetic resonance imaging fMRI study with a large sample addressing putative sex differences in MDD during adolescencea period when one of the most robust findings in psychiatric epidemiology emerges; that females are twice as likely to suffer from MDD than males.
Recurrence risk for autism spectrum disorders: a Baby Siblings Research Consortium study. As ND, by definition, manifest early, and are male-biased, fetal testosterone is a strong candidate for male bias in ASD discussed below. Lewis, M.
Transcriptomic analysis of autistic brain reveals convergent molecular pathology.
Potential risk factors and underlying brain mechanisms are also examined, with particular emphasis given to the role of sex hormones in modulating addictive behaviours. Sexual selection theory suggests that the sex with a higher potential reproductive rate will compete more strongly for access to mates.
Gender also shapes the patterns of behaviour and determines the character of environmental exposures which differs between sexes. Suicide among children and adolescents in Canada: trends and sex differences , E-cigarette use is not only prevalent among adolescents but is growing at an alarming rate.