Oh definitely this has been fairly well established for a while now. THC is pro-psychotic/anxiogenic in high enough doses and CBD is anti-psychotic/anxiolytic in high enough doses. The balance is crucial. And yes this has been backed up by studies showing that people smoking weed with higher THC/CBD ratio are more prone to psychotic break, and others showing that CBD can actually alleviate psychotic symptoms. CBD is even used in very large doses (~1 gram!) to treat schizophrenia.

https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4604190/ https://www.sciencedirect.com/science/article/pii/S092099641...

The balance is really important and there are a lot of individual factors.