However diagnostic criteria and practice is weak and varied, and has been based on a mental model where its a physical difference in rear brain mass and shape. This article highlights the complexity:
The research is coming hot and heavy with new brain scans, DNA, and physical diagnosis rather than mental. We will see a new diagnosis class within the next 5 years. Females, "normalish"-passing, and limited health access have only recently started to influence the data. We're in the midst of a revolution around how this is understood, and an emerging community of people that never could connect before because of social difficulties. Heady times, friends.
Neurodivergent, as far as I know, is not a medical term.
Did this study use that term?