Regarding correlation, note I said "poker and trading", by this meaning the mechanical, system-type trading approach, not "poker and investing" per se.
I have not seen a single study on this poker:trading correlation, so my assertion is pure theory and in fact "science fiction" at this time. I do believe my assertion to be correct.
Once place where poker, trading and investing intersect heavily is
Behavioral Finance
Take a look at the "Self Attribution Bias", which for most people is applied to every win and every loss they experience:
The Self-Attribution Bias