Long lasting musical training modifies language processing: a Dichotic Fused Word Test study.

L. Sebastiani, E. Castellani

Abstract


Musical training modifies neural areas associated with both music and language and enhances speech perception and discrimination by engaging the right hemisphere regions classically associated with music processing. On these bases we hypothesized that participants with extended musical training could have reduced left-hemisphere dominance for speech. In order to verify this hypothesis, two groups of right-handed individuals, one with long-term musical training and one with no musical training, participated to a Dichotic Fused Word Test consisting in the simultaneous presentation of different pairs of rhyming words and pseudo-words, one to the left ear and one to the right one. Participants typically show a greater number of reports of the right ear input than of the left one. This effect, called right ear advantage (REA), reflects left-hemisphere dominance for speech processing. In our study, we expected that musicians had a reduced dichotic listening REA for linguistic stimuli. The main result of this study was the attenuation, and in some cases the complete suppression, of the dichotic effect in musicians, since most of them perceived both words, simultaneously. This finding suggests that both hemispheres may have similar verbal competence and contribute to speech processing in parallel. This contrasts with the normal brain organization in which hemispheres cooperate but are engaged in different analysis of speech. The “two words” perception also extended to pseudo-words. Thus, musical training, by shaping the language circuits, could produce the enhancement of bilateral processing of stimuli with linguistic characteristics (i.e. phonetics) independently of semantics.

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Amunts K., Schlaug G., Jaencke L., Steinmetz H., Schleicher A., Dabringhaus A., Zilles K. Motor cortex and hand motor skills: Structural compliance in the human brain. Hum. Brain Mapp., 5: 206- 215, 1997.

Bamiou D.E., Musiek F.E., Sisodiya S.M., Luxon L.M. The role of interhemispheric pathways in hearing. Brain Res. Rev., 56: 170-182, 2007.

Bever T.G., Chiarello R. Cerebral dominance in musicians and non musicians. J. Neuropsychiatry Clin. Neurosci., 21: 94-97, 2009.

Bengtsson S.L., Nagy Z., Skare S., Forsman L., Forssberg H., Ullen F. Extensive piano practicing has regionally specific effects on white matter development. Nat. Neurosci., 8: 1148-1150, 2005.

Berman S.M., Mandelkern M.A., Phan H., Zaidel E. Complementary hemispheric specialization for word and accent detection. NeuroImage, 19: 319- 331, 2003.

Besson M., Schön D., Moreno S., Santos A., Magne C. Influence of musical expertise and musical training on pitch processing in music and language. Restor. Neurol. Neurosci., 25: 399-410, 2007.

Brochard R., Dufour A., Despres O. Effect of musical expertise on visuospatial abilities: Evidence from reaction times and mental imagery. Brain Cogn., 54: 103-109, 2004.

Bryden M.P., Bulman-Fleming M.B. Laterality effects in normal subjects: evidence for inter-hemispheric interactions. Behav. Brain Res., 64: 119-129, 1994.

Bryden M.P., Sprott D.A. Statistical determination of degree of laterality. Neuropsychologia, 19: 571- 581, 1981.

De Mauro T., Mancini F., Vedovelli M., Voghera M. Lessico di frequenza dell’italiano parlato-LIP, Milano, Etas Libri, 1993.

Di Stefano M., Marano E., Viti M. Stimulus- dominance effects and lateral asymmetries for language in normal subjects and in patients with a single functional hemisphere. Brain Cogn., 56: 55-62, 2004.

Dobel C., Pulvermuller F., Harle M., Cohen R., Kobbel P., Schonle P.W. Rockstroh B. Syntactic and semantic processing in the healthy and aphasic human brain. Exp. Brain Res., 140: 77-85, 2001.

Elbert T., Pantev C., Wienbruch C., Rockstroh B., Taub E. Increased cortical representation of the fingers of the left hand in string players. Science, 270: 305-307, 1995.

Habib M., Gayraud D., Oliva A., Regis J., Salamon G., Khalil R. Effects of handedness and sex on the morphology of the corpus callosum: A study with brain magnetic resonance imaging. Brain Cogn., 16: 41-61, 1991.

Hellige J.B., Taylor K.B., Lesmes L., Peterson S. Relationships between brain morphology and behavioral measures of hemispheric asymmetry and interhemispheric interaction. Brain Cogn., 36: 158-192, 1998.

Hugdahl K. Attentional modulation of inter-hemispheric transfer: a two channel threshold model. In: Zaidel E., Iacoboni M. (Eds.), The Parallel Brain: The Cognitive Neuroscience of the Corpus Callosum. MIT Press, Cambridge, pp. 307-318, 2003.

Jantzen M.G., Howe B.M., Jantzen K.J. Neurophysiological evidence that musical training influences the recruitment of right hemispheric homologues for specch perception. Front. Psychol., 5: 1-8, 2014.

Kimura D. Cerebral dominance and the perception of verbal stimuli. Can. J. Psychol., 15: 166-171, 1961.

Kimura D. Functional asymmetry of the brain in dichotic listening. Cortex, 3: 163-168, 1967.

Kinsbourne M. The cerebral basis of lateral asymmetries in attention. Acta Psychol., 33: 193- 201, 1970a.

Kinsbourne M. A model for the mechanism of unilateral neglect of space. Trans Am. Neurol. Assoc., 95: 143-146, 1970b.

Liederman J. A plan for the empirical evaluation of the coactivation/ equilibration model of callosal function. In: Zaidel E., Iacoboni M. (Eds.), The Parallel Brain: The Cognitive Neuroscience of the Corpus Callosum. MIT Press, Cambridge, pp. 282-286, 2003.

Lotze M., Scheler G., Tan H.-R.M., Braun C., Birbaumer N. The musician’s brain: functional imaging of amateurs and professionals during performance and imagery. NeuroImage, 20: 1817-1829, 2003.

Patston L.L., Hogg S.L., Tippett L.J., Attention in musicians is more bilateral than in non-musicians, Laterality, 12: 262-272, 2007.

Milner B., Branch C., Rasmussen T. Evidence for bilateral speech representation in some non-right handers. Trans. Am. Neurol. Assoc., 91: 306-308, 1966.

Morton B. Large individual differences in minor ear output during dichotic listening. Brain Cogn., 45: 229-237, 2001.

Oldfield R.C. The assessment and analysis of handedness: The Edinburgh inventory. Neuropsychologia, 9: 97-113, 1971.

Repp B. Measuring laterality effects in dichotic listening. J. Acoust. Soc. Am., 62: 720-737, 1977.

Rogalsky C., Rong F., Saberi K., Hickok G. Functional anatomy of language and music perception: temporal and structural factors investigated using functional magnetic resonance imaging. J Neurosci., 31: 3843-3852, 2011.

Roux F.E., Durand J.B., Jucla M, Réhault E., Reddy M., Démonet J.F. Segregation of lexical and sub- lexical reading processes in the left perisylvian cortex. PLoS One., 7: e50665, 2012.

Schellenberg E.G., Weiss M.W. Music and cognitive abilities. In D. Deutsch (Ed.), The psychology of music (3rd ed., pp. 499-550). Amsterdam: Elsevier. 2013.

Schlaug G., Jancke L., Yanxiong H., Staiger J.F., Steinmetz H. Increased corpus callosum size in musicians. Neuropsychologia, 33: 1047-1055, 1995.

Schön D., Magne C., Besson M. The music of speech: music training facilitate spitch processing in both music and language. Psychophysiology, 41: 341-349, 2004.

Shahin A.J. Neurophysiological influence of musical training on speech perception. Front. Psychol., 2: 126, 2011.

Spajdel M., Jariabková K., Riecanský I. The influence of musical experience on lateralisation of auditory processing. Laterality, 12: 487-99, 2007.

Sparks R., Geschwind N. Dichotic Listening in man after section of neocortical commissures. Cortex, 4: 3-16, 1968.

Speaks C., Niccum N. Variability of the ear advantage in dichotic listening. J. Am. Aud. Soc., 3: 52-57, 1977.

Specht K., Holtel C., Zahn R, Herzog H., Krause B.J., Mottaghy F.M., Irmgard Radermacher I., Schmidt D., Tellmann L., Weis S., Willmes K., Huber W., Lexical decision of nonwords and pseudowords in humans: a positron emission tomography study, Neurosci. Lett., 345: 177-181, 2003.

Studdert-Kennedy M., Shankweiler D. Hemispheric specialization for speech perception. J. Acoust. Soc. Am., 48: 579-594, 1970.

Xu B., Grafman J., Gaillard W.D., Ishii K., Vega- Bermudez F., Pietrini P., Reeves-Tyer P., Di Camillo P., Theodore W. Conjoint and extended neural networks for the computation of speech codes: the neural basis of selective impairment in reading words and pseudowords. Cereb. Cortex, 11: 267-77, 2001.

Witelson S.F. The brain connection: The corpus callosum is larger in left-handers. Science, 229: 665-668, 1985.

Woelfle R., Grahn J.A. Auditory and visual interhemispheric communication in musicians and non-musicians. PLoS One, 27: 8: e84446, 2013.

Zatorre R.J. Perceptual asymmetry on the dichotic fused word test and cerebral speech lateralization determined by carotid sodium amytal test. Neuropsychologia, 27: 1207-1219, 1989.

Zatorre R.J., Belin P., Penhune V.B. Structure and function of Auditory cortex: music and speech. Trends Cogn. Sci., 6: 37-46, 2002.




DOI: https://doi.org/10.4449/aib.v154i2/3.4545

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