2013
https://medicalxpress.com/news/2013-05-boys-asia.html
In the United States, girls had higher levels of self-regulation than boys. Self-regulation is defined as children's ability to control their behavior and impulses, follow directions, and persist on a task. It has been linked to academic performance and college completion, in past studies by Oregon State University researchers.
In three Asian countries, the gender gap in the United States was not found when researchers directly assessed the self-regulation of 3-6 year olds. The results appear in the new issue of the journal Early Childhood Research Quarterly....
comment- In line with a bunch of other stuff. Can languge-culture before 10 (+/-) play a slight but determinate role in wiring to equilibrium, with most asian (male to male maybe relatively more) resulting in more context-directed and then influenced relative to abstract-directed, and then influenced?