Articulatory Measurements on Voiced, Voiceless and Nasal Consonants

Slis, I.H.

doi:10.1159/000259302

Cited by 27 publications

(11 citation statements)

References 1 publication

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“…Behavioral studies have shown that voiced consonants are generated with the vocal folds vibrating, while voiceless ones without (Tabain et al, 2002; Slis, 2009). There is only minimal difference in locations of oral structures such as lip and tongue between the corresponding voiced and voiceless consonants.…”

Section: Discussionmentioning

confidence: 99%

Electrocorticographic correlates of overt articulation of 44 English phonemes: Intracranial recording in children with focal epilepsy

Toyoda

Brown

Matsuzaki

et al. 2014

Clinical Neurophysiology

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Objective We determined the temporal-spatial patterns of electrocorticography (ECoG) signal modulation during overt articulation of 44 American English phonemes. Methods We studied two children with focal epilepsy who underwent extraoperative ECoG recording. Using animation movies, we delineated ‘when’ and ‘where’ gamma- (70–110 Hz) and low-frequency-band activities (10–30 Hz) were modulated during self-paced articulation. Results Regardless of the classes of phoneme articulated, gamma-augmentation initially involved a common site within the left inferior Rolandic area. Subsequently, gamma-augmentation and/or attenuation involved distinct sites within the left oral-sensorimotor area with a timing variable across phonemes. Finally, gamma-augmentation in a larynx-sensorimotor area took place uniformly at the onset of sound generation, and effectively distinguished voiced and voiceless phonemes. Gamma-attenuation involved the left inferior-frontal and superior-temporal regions simultaneously during articulation. Low-frequency band attenuation involved widespread regions including the frontal, temporal, and parietal regions. Conclusions Our preliminary results support the notion that articulation of distinct phonemes recruits specific sensori-motor activation and deactivation. Gamma attenuation in the left inferior-frontal and superior-temporal regions may reflect transient functional suppression in these cortical regions during automatic, self-paced vocalization of phonemes containing no semantic or syntactic information. Significance Further studies are warranted to determine if measurement of event-related modulations of gamma-band activity, compared to that of the low-frequency-band, is more useful for decoding the underlying articulatory functions.

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Section: Discussionmentioning

confidence: 99%

Electrocorticographic correlates of overt articulation of 44 English phonemes: Intracranial recording in children with focal epilepsy

Toyoda

Brown

Matsuzaki

et al. 2014

Clinical Neurophysiology

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“…Kent and Moll (1969) have shown that voiced stop production is characterized by a larger supraglottal cavity associated with lowering of the hyoid bone and greater tongue-pharynx width. This enlargement has been shown to be more marked for labial in comparison to lingual stops (Slis, 1970;Slis andCohen, 1969a, 1969b). The former is also associated with less mechanical pressure (Malecot, 1966a(Malecot, , 1966b.…”

Section: There Appears To Be Some Disparity In the 50% Crossover Poinmentioning

confidence: 94%

Voicing contrast: perceptual and productive voice onset time characteristics of adults

Zlatin

1974

The Journal of the Acoustical Society of America

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This study was designed to examine the status of voice onset time (VOT) in identification and production of word-initial voiced and voiceless labial, apical, and velar stop consonants for 20 English-speaking adults. Synthetic speech stimuli were constructed for four continua including BEES/PEAS, BEAR/PEAR, DIME/TIME, and GOAT/COAT. VOT values for 30 productions of the same words examined in the identification task were determined from spectrographic measurements. Analyses of the perceptual data revealed significant differences among labial, apical, and velar stops for the VOT 50% crossover and lower and upper limits of the phoneme boundary, but not for boundary width. In production of voiced and voiceless stops, reliable differences for mean VOT were shown between all cognates and among places of articulatory constriction within voicing category. The latter finding was primarily related to the labial/velar comparisons. Variability among individual speakers was demonstrated in the percentage of voiced stops associated with VOT values in the lead portion of the continuum, whereas all subjects evidenced productions in the short lag range. Comparisons between identification and production demonstrated high consistency for VOT characteristics in that few productions coincided with the perceptual phoneme boundary or contrasting voicing category.

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“…The speed and the extent of arti culatory movement follow from different time courses of muscular activity [Ôhman et al, 1965, 1966Slis. 1970;Kohler.…”

Section: The Articulatory Power In Oral Stricture Formationmentioning

confidence: 99%

Phonetic Explanation in Phonology: The Feature Fortis/Lenis

Köhler¹

1984

Phonetica

119

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This paper examines the wide spectrum of phonetic properties associated with the phonological distinctions between consonant classes such as /p, t, k/ and /b, d, g/ in a great variety of languages (including languages with multivalued contrasts) and evaluates their relationship to the features [ ± voiced], [ ± aspirated], [ ± fortis]. The discussion separates word-initial, word-medial and word-final positions according to their different production and signalling constraints. A power feature, realized in articulatory timing and/or phonatory power/tension, is set up as the essential differentiator, thus providing a phonetic basis for the fortis/lenis dichotomy. The incorporation of the time dimension into phonology is regarded as a necessary prerequisite to the solution of phonological problems in general and to an adequate treatment of the [ ± voiced] feature in particular, voice onset time being only one temporal aspect.

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Articulatory Measurements on Voiced, Voiceless and Nasal Consonants

Cited by 27 publications

References 1 publication

Electrocorticographic correlates of overt articulation of 44 English phonemes: Intracranial recording in children with focal epilepsy

Electrocorticographic correlates of overt articulation of 44 English phonemes: Intracranial recording in children with focal epilepsy

Voicing contrast: perceptual and productive voice onset time characteristics of adults

Phonetic Explanation in Phonology: The Feature Fortis/Lenis

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