Board Thread:Off Topic/@comment-24993958-20161230201819/@comment-27618538-20170204154417

I would say also generalize it; positive emotions usually grant boosts, negative ones, usually cripple.

That said, I think it should work like- particular negative ones, though capable of boosting, come at a cost. For instance, when you put fear boosting reaction/perception, I'd say that would also boost speed (flight response) but also decrease strength, since all energy is being focused on getting the heck out of there.

Positive emotions would probably just boost overall with no negative drawbacks.