"Has anyone specifically tried to RV a dream??"
Of course. I know of german remote viewers who looked into a dream, in which the dreamer is going through a door and then waking up every time. The dreamer wanted to know what's behind the door. The remote viewers went into that dream and saw her going through that door, so they followed her. They then saw her talking to a group of people, with a city in the background. They concluded that the group of people and the city were a memory of her past, and eventually found out that she didn't allow herself to remember it, so she can't remember everything behind the door after waking up.
The german remote viewers say that it's possible to distinguish reality from dreams, because dreams look like a bubble with nothing around it. In another case, the dreamer had a recurring dream in which she was talking to a strange being. The remote viewers were able to see that being, and that it was living in its own bubble. The dreamer tried to enter that other bubble without permission, so the being banned her, leading to her waking up.
"I'm more interested in looking at how bias can creep into session"
Bias is hold in what I call the "thought realm", which is the same realm that holds the bubbles where dreams take place. Every bias is an idea of how something should be, not how it is in reality. The problem is: While in a certain bubble, everything looks real. That's because everything actually is emerging from the thought realm. Our universe also is a bubble within that realm, but with the difference that it's a shared experience. For an experience to be able to share, there must be rules. We call these rules physical law. The law connects everything inside a bubble.
My intuition says: If you want to know wether a perceived image is an AOL (bias from the other side of the hippocampus), you must look for bubble boundaries that should not be there. But I don't know how to do that. Maybe remote viewing dreams and learning how to spot the differences is what is needed.