What are the verbal signs of subjectivity?
I am doing research about the linguistic content of media (debates, talk-show, sport comments). It occurs that once the participant gets nervous or excited, the grammatical structure of the sentences and word choice (growing amount of modal verbs, judgmental adjectives, not politically correct nouns, dynamic verbs) can change.
That is why I am looking for sources that give me some research results about how emotions affect our verbal expressions (e.g., sentence structure, word usage, etc).
My research is in Polish and Dutch.