The Cerebral Dominance and Laterality Preference in Adults with Persistent Developmental Stuttering
Abstract
Stuttering is reported to be the consequence of aberrant cerebral laterality in the processing and production of speech. The previous studies involving undirected attention to the stimuli during dichotic listening tests vary with their procedure and method, yielding inconclusive statements about the laterality of speech processing in persons with stuttering (PWS). This is also true with other laterality measures using imaging procedures, leading to equivocal results. Hence, there is a need to study the speech processing in PWS on a large sample using techniques that are more economical and simpler. The present study, a part of a large scale project, aimed to investigate the differences, if any, with respect to the handedness, footedness, ear and eye preference and the lateralization Index (LI) scores among PWS compared to persons with no stuttering (PWNS). Participants were 50 PWS and to PWNS in the age range of 18 to 30 years. All the participants were screened for hearing acuity and administered Modified Laterality Preference Schedule (MLPS) followed by Dichotic Consonant Vowel (CV) Test in Kannada Language. The statistical analysis showed no significant difference in the mean values of scores between PWS and PWNS on MLPS. However, the dichotic CV test results showed statistical significancant difference. The findings partially support observation by many authors that the left laterality of the speech motor system is incomplete in PWS where there is reduced left hemisphere activation, bilateral activation or widespread right hemisphere bias when listening to verbal information.
References
Asbjornsen, A. E., & Helland, T. (2006). Dichotic listening performance predicts language comprehension. Laterality, 11(3), 251-262.
Brady, J. P., & Berson, J. (1975). Stuttering, Dichotic Listening, and Cerebral Dominance. Archives of General Psychiatry, 32(11), 1449-1452.
Braun, A. R., Varga, M., Stager, S., Schulz, G., Selbie, S.,Maisog, J. M., Carson, R. E., & Ludlow, C. L. (1997).Altered patterns of cerebral activity during speech and language production in developmental stuttering: An H2(15)O positron emission tomography study. Brain, 120, 761-784.
Bryden, M. P., Munhall, K., & Allard, F. (1983). Attentional biases and the right ear eect in dichotic listening. Brain and Language, 18(2), 236-248.
Curry, F. W. & Gregory, H. H. (1969). The performance of stutterers on dichotic listening task thought to re
ect cerebral dominance. Journal of Speech Hearing Research, 12, 73-82.
Cykowski M. D., Kochunov P. V., Ingham R. J., Ingham J. C., Mangin J. F., Riviere D., et al. (2008). Perisylvian sulcal morphology and cerebral asymmetry patterns in adults who stutter. Cerebral Cortex, 18, 571-583.
Deepika, D., & Geetha, Y. V. (2012). Laterality in children with and without stuttering. (Unpublished Master's Dissertation submitted to the University of Mysore.
Dorman, M. F., & Porter, R. S. (1975). Hemispheric lateralization for speech perceptions in stutterers. Cortex, 11,181-185.
Foundas, A. L., Bollich, A. M., Corey, D. M., Hurley, M.,& Lemen, L, C., Heilman, K.M. (2001). Anomalous anatomy of speech-language areas in adults with persistent developmental stuttering. Neurology, 57, 207-215.
Foundas, A. L., Bollich, A. M., Feldman, J., Corey, D. M.,Hurley, M., Lemen, L, C., & Heilman, K. M. (2004).Aberrant auditory processing and atypical planum temporal in developmental stuttering. Neurology, 63, 1640-1646.
Foundas, A.L., Corey, D.M., Angeles, V., Bollich, A.M.,Crabtree-Hartman, E., & Heilman, K.M., (2003). Atypical cerebral laterality in adults with persistent developmental stuttering. Neurology, 61, 1378-1385.
Fox, P.T., Ingham, R. J., Ingham, J. C., Hirsch, T.B.,Downs, J.H., Martin, C., Jerabek, P., Glass, T., & Lancaster, J. L. (1996). A PET study of the neural systems of stuttering. Nature, 382, 158-161.
Fox, P. T., Ingham, R. J., Ingham, J. C., Zamarripa, F.,Xiong, J. H., & Lancaster, J. L. (2000). Brain correlates of stuttering and syllable production: a PET performance-correlation analysis. Brain, 123, 1985- 2004.
Jancke, L., Hanggi, J., & Steinmetz, H. (2004). Morphological brain dierences between adult stutterers and non-stutterers. Neurology, 23, 1-8.
Jones, R. K. (1966). Observations on stuttering after localized cerebral injury. Journal of Neurology, Neurosurgery and Psychiatry, 29, 192-195.
Kimura, D. (1961). Cerebral dominance and the perception of verbal stimuli. Canadian Journal of Psychology, 15, 166-171.
Orton, S, T. (1928). A physiological theory of reading diasbility and stuttering in children. Journal of Medicine,199, 1045-1052.
Paus, T., Petrides, M., Evans, A.C., & Meyer, E. (1993). Role of human anterior cingulate cortex in the control of oculomotor, manual and speech responses: a positron emission tomography study. Journal of Neurophysiology, 70, 453-469.
Records, M.A., Heimbuch, R. C., & Kidd, K. K. (1977). Handedness and stuttering: A dead horse. Journal of Fluency Disorders, 2, 271-282.
Riley, G. (1994). Stuttering Severity Instrument for children and adults (3rd Ed). Austin, Tx: Pro-ed.
Sowman, P. F., Crain S., Harrison, E., & Johnson, B. W. (2014). Lateralization of Brain Activation in Fluent and Non-Fluent Preschool Children: A Magnetoencephalographic Study of Picture-Naming. Frontiers of Human Neuroscience, 8, 354.
Sommer, M., Koch, M.A., Paulus, W.,Weiller, C., & Buchel,C. (2002). Disconnection of speech-relevant brain areas in persistent developmental stuttering. Lancet, 360, 380-383.
Stromsta, C. (1964). Preliminary nal report. P.H.S. Grant N.B.03541-03. Strub, R.L., Black, F.W., & Naeser, M.A. (1987). Anomalous dominance in sibling stutterers: evidence from CT scan asymmetries, dichotic listening, neuropsychological testing, and handedness. Brain and Language, 30, 338-350.
Travis, L.E. (1931). Speech Pathology. New York: D. Appleton.
Venkatesan, S. (1992). Analysis of neuropsychological functions in a group of mentally handicapped adults. Thesis submitted to Osmania University. Hyderabad.
Webster, W. G. & Poulos, M. (1987). Handedness distributions among adults who stutter. Cortex, 23, 705-708.
Yathiraj, A., & Maggu, A. R. (2013). Development of a screening test for APD. An unpublished ARF Project Report, AIISH. Mysore.