The Disadvantage Of Modelling Protolanguage From The Perspective Of Affect

 Ngo, Hood, Martin, Painter, Smith & Zappavigna (2022: 54):

While modelling protolanguage from the perspective of affect does not lend itself as readily to tracking the development of the system as protodialogue (involving calls, greetings, offers, refusals, acknowledgements, playful exchanges) and imaginative play, it has the advantage of emphasising the continuity with the earlier, emotion-charged forms of social communion and of allowing for a clearer focus on the origins of the verbal ATTITUDE system in the adult semantics of APPRAISAL (Martin and White, 2005).

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[1] As previously explained, a model of protolanguage from the perspective of emotion ("affect") is a model of the sensing that might accompany protolanguage — like a model of sensing that might accompany language — not a model of the meaning that is actually expressed. As previously explained, it is not a question of whether protolanguage is "emotion-charged", but of whether it is emotions that constitute the content of what is expressed.

[2] To be clear, it is Halliday's linear taxonomy of complexity that provides a means of understanding the developmental move from pre-semiotic social communion to protolanguage. Halliday & Matthiessen (1999: 509):

… a social system is a biological system with the added component of "value" … . A semiotic system, then, is a social system with the added component of "meaning".

On Halliday's model, an infant's pre-symbolic behaviour of 'social communion' is social; it is biological with the added component of value. Again, the value, in this model, can be understood in terms of Edelman's Theory of Neuronal Group Selection, which proposes that neural systems include inherited 'values', which bias the perceptual categorisation of experience toward categorisations that been naturally selected to be of adaptive value to the organism's ancestors.

In the case of the 'social communion' of a human infant, the infant's 'expression with no symbolic content' selects a perception of positive value in the neural system of an adult, thus biasing the behaviour of the adult towards the caregiving of the infant, and through that, the strengthening of a social structure: a social bond between infant and caregiver. It is when this value becomes symbolic value that the social system acquires the added component of meaning that makes it a semiotic system: protolanguage.

[3] To be clear, the 'clearer focus' that is allowed by modelling protolanguage from the perspective of emotion ("affect") is the important distinction between the protolanguage systems that are common to all social semiotic species and the language systems that are unique to humans.

Moreover, the ATTITUDE system of AFFECT is concerned with the interpersonal assessment by reference to emotion, not with emotion as experiential meaning. As Halliday (2008: 179-80) explains, as a system of interpersonal assessment, the system of ATTITUDE arises from the systemisation of POLARITY and MODALITY:

In terms of children’s early language development, the interpersonal metafunction provides the prototype of how meanings come to be grammaticalised. The two systems that were first grammaticalised by one small child (Nigel, aged 0;10) were:

POLARITY: positive / negative
MODALITY: VALUE: low / high

followed shortly by the two forms of “appreciation” in conjunction with the feature “positive”:

APPRECIATION (positive): impact (“that’s interesting”) / quality (“that tastes nice”)

Note that these were not yet mother tongue; they were protolanguage, realised by sounds and gestures. But they were systemic, or at least proto-systemic; and they provided the model for the linguistic systems of appraisal, where each lexical item realises the intersection of an appraisal feature with polarity and/or modality.