Article

Pig vocalizations contain shared acoustic structure for humans and machines, but limited evidence for presumed affective valence

2026-07-09

Abstract excerpt

Vocalizations are increasingly proposed as indicators of affective state in animal welfare research. Yet many studies assign context-derived affective valence to vocalizations and then classify these using machine learning according to those context-derived labels. This circular dependence makes it unclear whether successful classification reflects affective state itself, broader contextual or acoustic differences...

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Literature Corpus work: 6a204b0c-9c0c-5c7e-a359-455e5e4614da
DOI: 10.64898/2026.07.06.736900

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