14th International Congress of Phonetic Sciences (ICPhS-14)
San Francisco, CA, USA
The detailed front tongue gestures of [tdlnsr] differ intralingually,
according to an interlingually widespread pattern. This
pattern reflects general, sound-specific production conditions,
such as: [s] demands a high mandibular position, a laminar
groove, and an air-jet hitting the front incisors; [r] demands a
well-balanced interplay of aerodynamic and organic factors,
including absence of laminar tension; [l] has a transverse
tongue compression and a lower mandibular position.
Swedish EPG data on [l] and other front coronals are presented and discussed partly in relation to the three-dimensional physiological tongue models of Stone and Wilhelms- Tricarico. Such models need empiric data like ours to develop. Also, detailed data will eventually be explained by such models.
We hypothesise: the [l] tendency to be apical more often than other coronals is due to its low mandibular position; this low position is due to its vertical tongue thickening and a strategy to avoid velarisation.
Bibliographic reference. Lindblad, Per / Lundqvist, Sture (1999): "How and why do the tongue gestures of [t], [d], [l], [n], [s], and [r] differ?", In ICPhS-14, 417-420.