I am studying questions related to brain, sex and gender, using various analytical methods to analyze diverse datasets, from large collections of brain scans to information obtained with self-report questionnaires. My studies challenged the sex/gender binary and described and tested the ‘mosaic’ hypothesis – most humans and brains comprise of unique ‘mosaics’ of both features that are more common in women and features that are more common in men. Ongoing studies characterize the relations between different aspects of gender cross-culturally.