The influence of emotion on articulatory precision was investigated in a newly established corpus of acted emotional utterances. The area of the vocalic triangle between the vowels /i/, /u/, and /a/ was measured and shown to be significantly affected by emotion. Furthermore, this area correlated significantly with the potency dimension of a large scale study of emotion words, reflecting the predictions of the component process model of emotion.
Bibliographic reference. Goudbeek, Martijn / Goldman, Jean Philippe / Scherer, Klaus R. (2008): "Emotions and articulatory precision", In INTERSPEECH-2008, 317.