Taking Steps To Realise Marked New

Ngo, Hood, Martin, Painter, Smith & Zappavigna (2022: 187, 189-90):

To what extent does the regularity in this sequence synchronise with PARALINGUISTIC PERIODICITY? The lecturer’s movement is schematised in Figure 6.5 (adopting the perspective of the students). 

The vertical lines to left and right denote the peripheries of the space, and the black rectangle denotes a centrally located desk towards the back of the space. The arrows show direction of movement; and the orientation of the foot indicates whether the lecturer is stepping forward or backwards in a given direction (it is always forward in (19'')). The figures and movement in Figure 6.5 are correlated as follows:

The movement in Figure 6.5 involves a regular three-step rhythm synchronous with each figure. The first step always falls on the intermodally prominent entity that construes the nutrient (i.e. glucose, vitamins, amino acids or water).

Blogger Comments:

[1] To be clear, in comparing textual paralanguages, it is the textual metafunction that is relevant, not the ideational. So, the relevant textual structure for description that is building on the rhythm and tonicity of gestures, is the Given-New structure of information unit realised by tone groups. 

[2] To be clear, the first step of each movement coincides with the tonic that realises the Focus of marked New information.

So here the authors are positing a systematic relation between stepping and language. For Halliday and Cléirigh, that categorises the function of this movement as linguistic, or "sonovergent" in the authors' terms.