The paper presents an analysis of the body markers that speakers use to convey high certainty and obviousness of the beliefs communicated while exposing detailed knowledge falling into their professional expertise to an audience of peer hearers. In a corpus of 42 video abstracts where doctors and medical researchers orally illustrate their scientific findings, two signals of high certainty (headshake and eye-closure) and two of obviousness (Palm Up Open Hand and shoulder shrug) are analysed from a semantic and cognitive point of view. The differences and relationships among these body markers and their verbal concomitant markers, along with their semantic nuances, are illustrated in depth.
Proceedings of the 4th European and 7th Nordic Symposium on Multimodal Communication (MMSYM 2016), Copenhagen, 29-30 September 2016
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