I am NOT asking whether people can experience two inconsistent emotions "at the same time". Clearly this can happen, e.g. when people have "mixed feelings" about something.
What I'm interested in, is whether emotions are strictly and purely a "global" phenomenon, or a "local" one.
hypothesis 1: emotions are global. Whenever any single brain experiences a set of emotions $X$ at time $t$, then for every region of the brain, that region is influenced by all emotions in $X$ (insofar as that region can be influenced by that emotion at all).
hypothesis 2: emotions can be local. Whenever any single brain experiences a set of emotions $X$ at time $t$, then it may sometimes be that one brain region is only influenced by a subset of emotions in $X$, and another region only influenced by a different subset.
A very extreme example would be that the left hemisphere experiences fear and grief, while the right hemisphere experiences joy and relief.
This particular example seems way too extreme to me, but I am wondering whether a far less extreme version of this might be possible. Can two different brain regions receive two different emotional signals at any point in time?
ps. I am obviously not a neuroscientist and I probably am making conceptual and terminological errors. Please be charitable, and address the question I intended to ask.