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Impaired balancing ability in dyslexic children

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Abstract

Children with developmental dyslexia struggle to learn to read and spell despite adequate intelligence and educational opportunity. Several lines of research are attempting to establish the neurobiological basis of dyslexia, and low-level sensory and motor deficits have been found in dyslexic populations; furthermore, behavioural and imaging data point to cerebellar dysfunction in dyslexia. To investigate this, normal readers (n=19) and children with developmental dyslexia (n=16) were asked to perform various cognitive, literacy, and balancing tasks. Children balanced on the left or right foot, with eyes open or closed, for a period of 10 s during which their movements were recorded with a motion-tracking system. Dyslexic children were less stable than the control children in both eyes-open conditions (left foot P=0.02, right foot P=0.012). While there were no group differences during the eyes-closed conditions, the dyslexic children dropped a foot to correct balance significantly more often than control children (P<0.05). Incidence analysis showed that 50% of the dyslexic group fell into the ‘impaired’ category on the eyes-open balancing tasks; when the mean balancing scores and the foot drops were considered, only three of our dyslexic children showed no evidence of balancing difficulties. There were strong correlations between reading and spelling scores and the mean eyes-open balancing score (r=0.52 and 0.44, respectively). Thus, while not all children with developmental dyslexia show impaired balancing skills, low-level motor dysfunction may be associated with impaired literacy development. This could be due to several factors, including the involvement of the cerebellum, the magnocellular system, or more general developmental immaturity.

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References

  • Allen G, Courchesne E (2003) Differential effects of developmental cerebellar abnormality on cognitive and motor functions in the cerebellum: an fMRI study of autism. Am J Psychiatry 160:262–273

    Article  PubMed  Google Scholar 

  • Berquin PC, Giedd JN, Jacobsen LK, Hamburger SD, Krain AL, Rapoport JL, Castellanos FX (1998) Cerebellum in attention-deficit hyperactivity disorder: a morphometric MRI study. Neurology 50:1087–1093

    PubMed  CAS  Google Scholar 

  • Berry EL, Jenkins IH, Nicolson RI, Fawcett AJ, Dean P, Brooks DJ (1998) Cerebellar function is impaired in dyslexia: a PET activation study. Neurology 50:1005

    Google Scholar 

  • Bishop DVM (2002) Cerebellar abnormalities in developmental dyslexia: cause, correlate or consequence? Cortex 38:491–498

    PubMed  Google Scholar 

  • Brown WE, Eliez S, Menon V, Rumsey JM, White CD, Reiss A (2001) Preliminary evidence of widespread morphological variations in the brain in dyslexia. Neurology 56:781–783

    PubMed  CAS  Google Scholar 

  • Durston S, Hulshoff Pol HE, Schnack HG, Buitelaar JK, Steenhuis MP, Minderaa RB, Kahn RS, van Engeland H (2004) Magnetic resonance imaging of boys with attention-deficit/hyperactivity disorder and their unaffected siblings. J Am Acad Child Adol Psychiatry 43:332–340

    Article  Google Scholar 

  • Eckert MA, Leonard CM, Richards TL, Aylward EH, Thomson J, Berninger VW (2003) Anatomical correlates of dyslexia: frontal and cerebellar findings. Brain 126:482–494

    Article  PubMed  Google Scholar 

  • Fawcett AJ, Nicolson RI (1999) Performance of dyslexic children on cerebellar and cognitive tests. J Motor Behav 31:68–78

    Article  Google Scholar 

  • Fawcett AJ, Nicolson RI, Dean P (1996) Impaired performance of children with dyslexia on a range of cerebellar tasks. Ann Dyslexia 46:259–283

    Article  Google Scholar 

  • Fiez JA, Petersen SE (1998) Neuroimaging studies of word reading. PNAS 95:914–921

    Article  PubMed  CAS  Google Scholar 

  • Fiez JA, Petersen SE, Cheney MK, Raichle ME (1992) Impaired non-motor learning and error detection associated with cerebellar damage: a single case study. Brain 115:155–178

    Article  PubMed  Google Scholar 

  • Finch AJ, Nicolson RI, Fawcett AJ (2002) Evidence for a neuroanatomical difference within the olivo-cerebellar pathway of adults with dyslexia. Cortex 38:529–539

    PubMed  Google Scholar 

  • Francks C, MacPhie IL, Monaco AP (2002) The genetic basis of dyslexia. Lancet Neurol 1:483–490

    Article  PubMed  CAS  Google Scholar 

  • Gasparini M, DiPieroV, Ciccarelli O, Cacioppo MM, Pantano P, Lenzi GL (1999) Linguistic impairment after right cerebellar stroke: a case report. Eur J Neurol 6:353–356

    Article  PubMed  CAS  Google Scholar 

  • Goswami U (2003) Why theories about developmental dyslexia require developmental designs. TICS 7:534–540

    Google Scholar 

  • Hill DE, Yeo RA, Campbell RA, Hart B, Vigil J, Brooks W (2003) Magnetic resonance imaging correlates of attention-deficit/hyperactivity disorder in children. Neuropsychology 17:496–506

    Article  PubMed  Google Scholar 

  • Holmes G (1939) The cerebellum of man. Brain 62:1–30

    Article  Google Scholar 

  • Ito M (1984) The cerebellum and neural control. Raven Press, Baltimore

    Google Scholar 

  • Ivry RB, Justus TC (2001) A neural instantiation of the motor theory of speech perception. TINS 24:513–515

    PubMed  CAS  Google Scholar 

  • Johnsen S, Tarby T, Lewis K, Bird R, Prenger E (2002) Cerebellar infarction: an unrecognized complication of very low birthweight. J Child Neurol 17:320–324

    PubMed  Google Scholar 

  • Jones W, Hesselink J, Courchesne E, Duncan T, Matsuda K, Bellugi U (2002) Cerebellar abnormalities in infants and toddlers with Williams syndrome. Dev Med Child Neurol 44:688–694

    Article  PubMed  Google Scholar 

  • Kern JK (2003) Purkinje cell vulnerability and autism: a possible etiological connection. Brain Devel 25:377–382

    Article  Google Scholar 

  • Leggio MG, Silveri MC, Petrosini L, Molinari M (2000) Phonological grouping is specifically affected in cerebellar patients: a verbal fluency study. J Neurol Neurosurg Psychiatry 69:102–106

    Article  PubMed  CAS  Google Scholar 

  • Leonard CM, Eckert MA, Lombardino LJ, Oakland T, Kranzler J, Mohr CM, King WM, Freeman A (2001) Anatomical risk factors for phonological dyslexia. Cereb Cortex 11:148–157

    Article  PubMed  CAS  Google Scholar 

  • Moe-Nilssen R, Helbostad JL, Talcott JB, Toennessen FE (2003) Balance and gait in children with dyslexia. Exp Brain Res 150:237–244

    PubMed  Google Scholar 

  • Moretti R, Bava A, Torre P, Antonello RM, Cazzato G (2002) Reading errors in patients with cerebellar vermis lesions. J Neurol 249:461–468

    Article  PubMed  Google Scholar 

  • Mostofsky SH, Reiss AL, Lockhart P, Denckla MB (1998) Evaluation of cerebellar size in attention-deficit/hyperactivity disorder. J Child Neurol 13:434–439

    PubMed  CAS  Google Scholar 

  • Nicolson RI, Fawcett AJ (1990) Automaticity: a new framework for dyslexia research?. Cognition 35:159–182

    Article  PubMed  CAS  Google Scholar 

  • Nicolson RI, Fawcett AJ (1994) Reaction times and dyslexia. Q J Exp Psych 47A:29–48

    CAS  Google Scholar 

  • Nicolson RI, Fawcett AJ, Dean P (1995) Time estimation deficits in developmental dyslexia: evidence for cerebellar involvement. Proc R Soc Lond B Biol Sci 259:43–47

    Article  CAS  Google Scholar 

  • Nicolson RI, Fawcett AJ, Berry EL, Jenkins IH, Dean P, Brooks DJ (1999) Association of abnormal cerebellar activation with motor learning difficulties in dyslexic adults. Lancet 353:1662–1667

    Article  PubMed  CAS  Google Scholar 

  • Nicolson RI, Fawcett AJ, Dean P (2001) Developmental dyslexia: the cerebellar deficit hypothesis. TINS 24:508–511

    PubMed  CAS  Google Scholar 

  • Olson R, Forsberg H, Wise B, Rack J (1994) Measurement of word recognition, orthographic, and phonological skills. In: Lyon G (ed) Frames of reference for the assessment of learning disabilities: new views on measurement issues. Paul H. Brookes Publishing Co, Baltimore, pp 243–277

    Google Scholar 

  • Pennington BF, Gilger JW, Pauls D, Smith SA, Smith SD, DeFries JC (1991) Evidence for major gene transmission of developmental dyslexia. JAMA 266:1527–1534

    Article  PubMed  CAS  Google Scholar 

  • Raberger T, Wimmer H (2003) On the automaticity/cerebellar deficit hypothesis of dyslexia: balancing and continuous rapid naming in dyslexics and ADHD children. Neuropsychologia 41:1493–1497

    Article  PubMed  Google Scholar 

  • Rae C, Harasty JA, Dzendrowskyj TE, Talcott JB, Simpson JM, Blamire AM, Dixon RM, Lee MA, Thompson CH, Styles P, Richardson AJ, Stein JF (2002) Cerebellar morphology in developmental dyslexia. Neuropsychologia 40:1285–1292

    Article  PubMed  Google Scholar 

  • Ramus F, Pidgeon E, Frith U (2003) The relationship between motor control and phonology in dyslexic children. J Child Psych Psychiatry 44:712–722

    Article  Google Scholar 

  • Ramus F, Rosen S, Dakin SC, Day BL, Castellote JM, White S, Frith U (2003) Theories of developmental dyslexia: insights from a multiple case study of dyslexic adults. Brain 126:841–865

    Article  PubMed  Google Scholar 

  • Rutter M, Yule W (1975) The concept of specific reading retardation. J Child Psych Psychiatry 16:181–197

    Article  CAS  Google Scholar 

  • Schmahmann J (1997) The cerebellum and cognition. Academic, San Diego

    Google Scholar 

  • Schmahmann JD, Sherman JC (1997) Cerebellar cognitive affective syndrome. Intl Rev Neurobiol 41:433–440

    Article  CAS  Google Scholar 

  • Scott RB, Stoodley CJ, Anslow P, Paul C, Stein JF, Sugden EM, Mitchell CD (2001) Lateralized cognitive deficits in children following cerebellar lesions. Dev Med Child Neurol 43:685–691

    Article  PubMed  CAS  Google Scholar 

  • Silveri MC, Leggio MG, Molinari M (1994) The cerebellum contributes to linguistic production: a case of agrammatic speech following a right cerebellar lesion. Neurology 44:2047–2050

    PubMed  CAS  Google Scholar 

  • Spyers A, Stokes M, Bain P, Roberts S (1999) Classification of normal and pathological tremors using a multidimensional electromagnetic system. Med Eng Phys 21:713–723

    Article  PubMed  Google Scholar 

  • Stein J, Walsh V (1997) To see but not to read: the magnocellular theory of dyslexia. TINS 20:147–152

    PubMed  CAS  Google Scholar 

  • Stein JF, Talcott JB, Witton C (2001) The sensorimotor basis of developmental dyslexia. In: Fawcett A (ed) Dyslexia: theory and good practice. Whurr Publishers, London, pp 65–88

    Google Scholar 

  • Talcott JB, Witton C (2002) A sensory linguistic approach to the development of normal and dysfunctional reading skills. In: Witruk E, Friederici A, Lachmann T (eds) Basic functions of language, reading and reading disability. Kluwer, Boston, pp 213–240

    Google Scholar 

  • Talcott JB, Witton C, McLean MF, Hansen PC, Rees A, Green GG, Stein JF (2000) Dynamic sensory sensitivity and children’s word decoding skills. PNAS 97:2952–2957

    Article  PubMed  CAS  Google Scholar 

  • Vicari S, Marotta L, Menghini D, Molinari M, Petrosini L (2003) Implicit learning deficit in children with developmental dyslexia. Neuropsychologia 41:108–114

    Article  PubMed  Google Scholar 

  • Wimmer H, Mayringer H, Raberger T (1999) Reading and Dual-Task Balancing: evidence against the automatization deficit explanation of developmental dyslexia. J Learn Disabil 32:473–478

    Article  PubMed  CAS  Google Scholar 

  • Wolf M (1991) Letter naming, reading and the contribution of the cognitive neurosciences. Read Res Q 26:123–141

    Article  Google Scholar 

  • Wolf M, Obregon M (1992) Early naming deficits, developmental dyslexia, and a specific deficit hypothesis. Brain Lang 42:219–247

    Article  PubMed  CAS  Google Scholar 

  • Yap RL, van der Leij A (1994) Testing the automatization deficit hypothesis of dyslexia via a dual-task paradigm. J Learn Disabil 27:660–665

    PubMed  CAS  Google Scholar 

  • Zeffiro T, Eden G (2001) The cerebellum and dyslexia: perpetrator or innocent bystander?. TINS 24:512–513

    PubMed  CAS  Google Scholar 

Download references

Acknowledgement

C.J. Stoodley was funded by the Goodger Scholarship / Schorstein Research Fellowship from the University of Oxford. We would like to thank Prof. Chris Miall for assistance with the Polhemus system.

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Correspondence to Catherine J. Stoodley.

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Stoodley, C.J., Fawcett, A.J., Nicolson, R.I. et al. Impaired balancing ability in dyslexic children. Exp Brain Res 167, 370–380 (2005). https://doi.org/10.1007/s00221-005-0042-x

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