The phrase "current theories" refers to the existing and most up-to-date explanations or ideas that scientists or experts have developed to understand a particular subject or phenomenon. Full definition
We bring together current theories on body, mind and brain, set in an analytic framework, to understand trauma and to train therapists in effective trauma treatment. (icpnyc.org)
This approach could also have implications for a better understanding of how ASD arises, particularly as current theory suggests a mixture of genetic and environmental factors are involved. (sciencedaily.com)