[tense]

Counterpart

[lax]

Feature System

Jakobsonian

Definition

Sounds produced with greater muscular tension, especially in the pharyngeal walls, resulting in higher intensity, longer duration, more distinct formant structure, and less acoustic damping compared to [lax] counterparts. A similar deviation may be presumed for the spectrum of tense consonants.

Purpose

Allows for lexical distinctions (e.g., English beat vs. bit) and reinforcing phonological contrasts at both segmental and prosodic levels.

History

Jakobson and Lotz (1949) discuss the feature [tense] to describe a type of vocalic and consonantal complexity involving muscular effort and duration. The tense vowels [i], [u], and [y] are distinguished from their [non-tense] counterparts, the glides consonants [j], [w], and [ɥ], by their greater vocalic stability and syllabic role. Tense vowels and consonants are distinguished from their lax ones, linking tenseness to greater articulatory strength and airflow. Jakobson emphasized that tenseness must exist in contrast with laxness. Jakobson, Fant & Halle 1952, in Preliminaries to speech analysis use [tense] to contrast stop pairs. This concept was formalized in Chomsky and Halle’s (1968) The sound pattern of English (SPE), where tense sounds are described as involving greater articulatory precision, muscular tension, and longer duration. Perkell (1965) supports these claims with physiological data, showing that tense vowels maintain more stable vocal tract configurations than [lax] vowels. Later, Halle and Stevens (1969) proposed Advanced Tongue Root [ATR] as a more articulatorily grounded alternative to [tense], replacing both [tense] and the earlier feature proposed by Chompsky [covered]. Clements and Halle (1983) discussed both [tense] and [ATR] and suggested they may be variant implementations of the same underlying contrast, as they are not contrastive in any known language.

However, Lindau (1978, 1979) argued they are phonetically distinct: [tense] relates to tongue height, while [ATR] involves pharyngeal expansion and overall vocal tract shape. To clarify, she relabeled [ATR] as [expanded/constricted pharynx]. She also cited languages with both [ATR] harmony and tenseness-based vowel reduction, demonstrating that both features may coexist functionally in different phonological domains. Keating (1988) reviewed efforts to unify [tense] and [ATR] but noted ongoing disagreements. While [ATR] has become the preferred label in many phonological systems, due to its clear articulatory target, some researchers, like Anderson (2021), maintain that [tense] helps explain vowel height distinctions in some systems. This is an open-ended research question that is still being discussed today.

References

Anderson, Stephen R. 2021. Phonology in the twentieth century: Second edition, revised and expanded. Vol. 5. Berlin: Language Science Press.

Chomsky, Noam & Morris Halle. 1968. The sound pattern of English. New York: Harper & Row.

Halle, Morris, Roman Jakobson & Gunnar Fant. 1952. Preliminaries to speech analysis: The distinctive features and their correlates. Cambridge, MA: MIT Press.

Keating, Patricia A. 1988. Underspecification in phonetics. Phonology 5(2). 275–292. https://doi.org/10.1017/S0952675700002395

Lindau, Mona. 1978. Vowel features. Language 54(3). 541–563. https://doi.org/10.1353/lan.1978.0066.

Lindau, Mona. 1979. The feature expanded. Journal of Phonetics 7(2). 163–176. https://doi.org/10.1016/S0095-4470(19)31047-2.

Author

Bex Colley