The Effect of Mandibular Nerve Block Upon the Speech of Four-Year-Old Boys

Abstract

The effects of bilateral mandibular nerve blocks on the speech of seven four-year-old boys were judged by transcribers. The children repeated 66 sentences heavily weighted with consonant clusters known to be vulnerable to nerve block distortion. Although all the children reported loss of sensation, there was variation in speech effect. The effect was limited to less than 20% of the utterances but the distortions were further from target than those of adults previously studied. It is hypothesized that the nerve block interrupts the sensation of touch, a sensation that arises in time after the speech motor commands and has little importance in on-going monitoring of learned speech patterns. The slurring of speech which does result from the block is attributed to absorption of the anaesthetic by the blood stream.

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References

Adatia, A.K. and Gehring, E.N. ( 1971). Proprioceptive innervation of the tongue. J. Anat. 110, 215.

Borden, G.J. ( 1971). Some effects of oral anesthesia on speech: A perceptual and electromyographic analysis. Doctoral Dissertation, City Univ. New York.

Borden, G.J. , Harris, K.S. and Catena, L. ( 1973. Oral Feedback: II. An electromyographic study of speech under nerve-block anesthesia. J. Phonetics, 1, 297.

Borden, G.J. , Harris, K.S. and Oliver, W (1973). Oral feedback I: Variability of the effects of nerve-block anesthesia upon speech. J .Phonetics, 1 289.

Bowman, J.P. ( 1971). The Muscle Spindle and Neural Control of the Tongue ( Springfield, Ill.).

Bowman, J.P. and Combs, C.M. ( 1968). The discharge patterns of lingual spindle afferent fibers in the hypoglossal nerve of the rhesus monkey. Exp. Neurol , 21, 105.

Gammon, S.A. , Smith, P.J. , Daniloff, R.G. and Kim, C.W. ( 1971). Articulation and stress/juncture production under oral anesthetization and masking. J. Speech Hear. Res., 14, 271.

Mccroskey, R.L. ( 1958). The relative contribution of auditory and tactile cues to certain aspects of speech. Southern Speech J., 24, 84.

Ringel, R.L. and Steer, M.D. ( 1963). Some effects of tactile and auditory alterations on speech output. J. Speech Hear. Res., 6, 369.

10.

Scott, C. ( 1970. A phonetic analysis of the effects of oral sensory deprivation. Doctoral dissertation, Purdue Univ.

11.

Scott, C. and Ringel, R.L. ( 1971). The effects of motor and sensory disruptions on speech: A description of articulation. J. Speech Hear. Res. , 14, 819.