Oral Vibrotactile Sensation: An Evaluation of Normal and Defective Speakers

Fucci, Donald

doi:10.1044/jshr.1501.179

Cited by 43 publications

(22 citation statements)

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“…Agreement among the studies as to the effect of vibration frequency has often been lacking. Supporting Verrillo's finding of a flat threshold function was an experiment reported by Fucci (1972) that compared the sensitivities of the tongue, palm, and lip when a rigid surround was used. The sensitivity of both oral structures remained constant between 60 and 900 Hz.…”

Section: Barry G Green Monell Chemical Senses Center Philadelphia mentioning

confidence: 68%

“…This observation failed to explain why Fucci (1972) had originally obtained a flat threshold function while using the clamping procedure, or why Fucci and Petrosino (1982) found a very large (15-20 dB) effect of frequency on perceived intensity without using the clamping procedure. Clearly, the conditions under which frequency affects the sensitivity of the tongue to vibration have yet to be established.…”

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confidence: 67%

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The effect of cooling on the vibrotactile sensitivity of the tongue

Green

1987

Perception & Psychophysics

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Two experiments were carried out to investigate the effect of cooling on the sensitivity of the tongue to vibration. In the first experiment the temperature of the tongue was held at 36 0 , 28 0 , or 20 0 C while the thresholds for detecting 30-and 250-Hz vibrations were measured using a twoalternative forced-choice paradigm. Cooling the tongue to 20 0 reduced the sensitivity to 250-Hz vibration but did not disturb the sensitivity to 30-Hz vibration. The second experiment established that cooling continued to reduce the sensitivity to the 250-Hz stimulus even when intensity levels were raised to 30 dB SL. The results are discussed in relation to (1) which types of mechanoreceptors mediate the perception of vibration on the dorsal surface of the tongue, (2) the effect of a rigid surround on lingual vibrotactile sensitivity, and (3)the possible impact of temperature on perception of the mechanical characteristics of foods.Tactile information from the tongue is important for both the manipulation and the sensory assessment of ingested foods. In recognition of this fact and because of the presumed importance of tactile feedback from the tongue during speech production, a relatively large literature has developed on lingual mechanical sensitivity.

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Section: Barry G Green Monell Chemical Senses Center Philadelphia mentioning

confidence: 68%

mentioning

confidence: 67%

The effect of cooling on the vibrotactile sensitivity of the tongue

Green

1987

Perception & Psychophysics

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“…The apparatus used in the present experiment has been described in detail in a previous publication (Fucci, 1972). The stimulus unit included a sine wave generator, frequency counter, electronic switch (designed to maintain a sine wave configuration), interval timer, amplifier, variable attenuator, and electromagnetic vibrator.…”

Section: Methonmentioning

confidence: 99%

“…In comparing the vibrotactile thresholds obtained from the lip and tongue, Fucci (1972) reported that speech-defective Ss were less sensitive to vibrotactile stimulation than were unaffected speakers. The implication of this study suggested that poor oral vibrotactile sensitivity represented an interruption of the sensory control unit necessary for proper coordination of the articulators.…”

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confidence: 99%

The effects of pulsed and continuous stimulation on vibrotactile thresholds obtained from the tongue

1972

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Vibrotactile thresholds were obtained from the anterior midline surface of the tongue on two groups of normal-speaking young adults by using ascending-pulsed, ascending-continuous, and descending-continuous stimulation. The t test comparisons of the data showed no significant differences between ascending-pulsed and continuous thresholds; however, significant t tests were obtained when comparing ascending-continuous and descending-continuous data. These results suggested that descending-continuous vibrotactile thresholds were significantly poorer than either ascending-pulsed or continuous thresholds.

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“…Continuous closed -loop tracking of speech sounds is not only reflected in the sound patterns of speech , but also related to specific somesthetic processes associated with normal articulatory movements (Smith & Henry, 1967). Fucci (1972) reported differences between normal speaking and "functional" speech-defective adults when comparing vibrotactile thresholds obtained from the lip and tongue. Speech-defective Ss were found to be less sensitive for oral vibrotactile stimulation than unaffected speakers.…”

mentioning

confidence: 99%