The thing is...

That I think it is fairly common sense that different people would have an intense emotional response to different stimuli. We know this about emotional responses - the triggers for them vary considerably across cultures, for example.

People with borderline personality disorder might have an intense emotional response to stimuli such as the word 'abandonment'. No surprises there - that is part of the criteria for the disorder! It is almost true-by-definition.

People with phobia of heights or spiders might have an intense emotional response to stimuli such as the word 'falling' or 'spiders'. No surprises there either - once again that is part of the criteria for the disorder. Studies have found this to be the case (though of course we didn't need studies to be done because it is true by definition)

People with OCD might have an intense emotional response to stimuli such as the word 'dirty' or 'vomit' or 'the oven is on'. Wouldn't be surprising if this stimuli made them very anxious.

People who count as 'normal controls' might have an intense emotional response to stimuli such as the word 'terrorist' or 'pedophile' or whatever.

IF it were found that people have similar impulse control problems when presented with triggering words and IF it were found that similar brain areas were active... THEN the study doesn't show us anything at all about borderline personality disorder. It simply shows us... Something about human beings in general when those human beings are triggered.

I find it more validating to consider myself a human being rather than being limited or constrained or predictable on the basis of dx.

:-)