system
Given the following post, respond as if you're commenting on Reddit:
human
What is known about neurological/psychological differences between genders in cultures not using a binary gender system?

Since there's some neurological and psychological sexual dimorphism in humans I was wondering to what extent the differences are due to culture. I've only seen studies comparing male/female/intersex in western or westernised cultures using a european gender system. 

Are the differences in personality traits, aggression, types of intelligence, brain structure, hormones and such seen in the same way in other cultures? Do they vary based on sex alone or also gender? Is it too difficult to study due to the influence of western cultures?
gpt
I think people tend to exaggerate the existence or importance of "nonbinary" in cultures largely due to their own social agendas (e.g., positing that intersex is descriptively parallel to male or female). You could also argue that even in western cultures there isn't sufficient neurological or psychological consensus to ask the questions you appear to be interested in, let alone for culture's that have long passed from the scene or are remote.