Over 200 pages.
The importance of sex differences in the brain and behaviour is indisputable. It forms the basis for differences in risk across a range of neurological and psychiatric disorders, as well as gender roles within society. The classical approach to investigating sex differences primarily involves comparisons between males and females. While informative for characterizing the wide array of sexually dimorphic traits, straight comparisons are insufficient to elucidate specific molecular contributions due to the multiplicity of confounding factors. Discrete genetic polymorphisms can be used to investigate variance in these traits due to sex-related molecular factors independent of confounds of sex.
This thesis applies candidate genetics to understand the specific contributions of molecular components of the sex hormone pathways to sexual dimorphism in brain structure, personality and cognition. A cohort of 384 individuals were recruited to undergo MRI brain scans, cognitive and personality testing. They also provided blood…
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