Confusing Mode With Exophoric Reference

Doran, Martin & Herrington (2024: 197):

Finally, mode offers resources for distributing information across a text, via a system called DISTRIBUTION. The basic distinction is between an instance of language that indicates that there is further information needed to understand what is being said (i.e. that the information is in some sense distributed) or that all the information is given in the immediate instance. 

Distribution of information occurs throughout the classroom example we have been looking at, where the teacher refers across modalities to the slides they are using (in bold below):

I have this image here of the cell undergoing mitosis for two replicated daughter cells. You’ve got here DNA replication with the cell cycle – what part is that called?

In this example, the teacher is specifying that the information needed is distributed between the spoken language and the slide they are looking at. She does this by drawing on exophoric reference to the infographic (Halliday and Hasan 1976; Martin 1992).

Reviewer Comments:

This simply confuses the contextual parameter of mode, 'the part played by language' in terms of the culture, with a linguistic system two strata below: the lexicogrammatical system of exophoric reference (Halliday and Hasan 1976).