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Updated: Oct 6, 2025

Ultrasound Images of the Tongue: A Tutorial for Assessment and Remediation of Speech Sound Errors
Published on: January 3, 2017
Trilled /r/ is associated with roughness, linking sound and touch across spoken languages
Bodo Winter1, Márton Sóskuthy2, Marcus Perlman3
1Department of English Language and Linguistics, University of Birmingham, Birmingham, UK. b.winter@bham.ac.uk.
Abstract:
Cross-modal integration between sound and texture is important to perception and action. Here we show this has repercussions for the structure of spoken languages. We present a new statistical universal linking speech with the evolutionarily ancient sense of touch. Words that express roughness-the primary perceptual dimension of texture-are highly likely to feature a trilled /r/, the most commonly occurring rhotic consonant. In four studies, we show the pattern to be extremely robust, being the first widespread pattern of iconicity documented not just across a large, diverse sample of the world's spoken languages, but also across numerous sensory words within languages. Our deep analysis of Indo-European languages and Proto-Indo-European roots indicates remarkable historical stability of the pattern, which appears to date back at least 6000 years.
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