Accepting The Biological Nature Of Vocal And Facial Expressions Of Emotion

Ngo, Hood, Martin, Painter, Smith & Zappavigna (2022: 139):

If we accept that natural (i.e. not performed) vocal and facial expressions of emotion are biological in nature (Darwin, 1872; Barlow, 2002), this would suggest resonance across the systems of FACIAL AFFECT and VOICE AFFECT (in the absence of intentional divergence such as in expressions of sarcasm).

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[1] To be clear, the biological nature of vocal and facial expressions of emotion, whether natural or performed, lies in the fact that the organs of organisms are their material basis. Moreover, the fact that the vocal and facial expressions of emotion are not restricted to humans (Darwin 1872) demonstrates that these semiotic systems do not require the prior evolution and development of language, and so are (personal) protolinguistic systems, rather than (interpersonal) AFFECT systems of language.

[2] For amusement, the following illustrates the divergence between the expressed content of protolanguage and the unexpressed content of language.