Emotions are a fundamental aspect of most, if not all, mammalian life on the planet. Useful or not, it all depends on the circumstances.. though I don't think anyone will deny the power emotion can hold over us. So yeah, I'd say it can impact your whole outlook, let alone an RV session.
For example, one of the most common forms of psi that I've seen posted about, is empathy. Perhaps this is because as a function, it is so collective and unchangeable (among humans), and therefore more recognisable & identifiable. Though what you're talking about appears to be, a projection of said emotion onto an external object, affecting your perception.
Maybe it would be classified under subjective-noise, as it is not an analytical function. Anyway I'm tired, gonna chill out. Hope you had a good weekend.
- Rob