Abstract
Developmental dyslexia (specific reading and specific spelling disorder) is thought to stem from specific features in cognitive processing strongly related to biological maturation of the central nervous system which interact with non-biological learning conditions. The specific learning disorder should not be accounted for by mental age, gross neurological deficits, emotional disturbances or inadequate schooling. As a clinical guideline, the child’s level in reading and spelling must be significantly below that expected for the population of children of the same mental age. The persistence rate is high and dyslexia is often associated with psychiatric problems. The etiology is not known. From the biological point of view, dyslexia is supposed to have a neurological basis. Neuroanatomical, neurophysiological, and neuropsychological correlates have been studied by means of autopsy, brain imaging, neurophysiological and neuropsychological methods. There is good evidence that dyslexia is determined by heritable cognitive components of reading and spelling processing. Experimental research focuses on characteristics of brain structure and cognitive skills related to the central nervous systems of auditory-phonological and visual information processing.
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References
American Psychiatric Association (1994) DSM-IV, Diagnostic and Statistical Manual of Mental Disorders. IVth edn. American Psychiatric Press. Washington D.C.
Barnard N, Crewther SG, Crewther DP (1998) Development of a magnocellular function in good and poor primary school-age readers. Optometry and Vision Science 75: 62–68
Bishop DVM (1989) Unstable vergence control and dyslexia. A critique. British Journal of Ophthalmology 73:223–235
Bouma H, Legein CHP (1980) Dyslexia: A specific recoding deficit? An analysis of response latencies for letters and words in dyslectics and in average readers. Neuropsychologia 18:285–298
Brandeis D, Vitacco D, Steinhausen HC (1994) Mapping brain electric micro-states in dyslexic children during reading. Acta Paedopsychiatrica 56:239–247
Brecelj J, Strucl M, Raic V (1996) Do visual neurophysiological tests reflect magnocellular deficit in dyslexic children? Pflügers Archiv 431 Suppl. R299-R300
Brown B, Haegerstrom-Portnoy G, Adams AJ, Yingling CHD, Galin D, Herron J, Marcus M (1983) Predictive eye movements do not discriminate between dyslexic and control children. Neuropsychologia 21: 121–128
Bryant PE, Goswami U (1990) Comparisons between backward and normal readers — a risky business. British Psychological Society Education Review 14:3–29
Cardon LR, Smith SD, Fulker DW, Kimberling WJ, Pennington BF, De Fries JC (1994) Quantitative trait locus for reading disability on chromosome 6. Science 266: 276–279
DeFries JC, Fulker DW, LaBuda MC (1987) Evidence for a genetic etiology in reading disability of twins. Nature 329:537–539
DeFries JC, Stevenson J, Gillis, JJ, Wadsworth SJ (1991) Genetic etiology of spelling deficits in the colorado and London twin studies of reading disability. Read Writ Interdisc J 3:271–283
Demb JB, Boynton GM, Best M, Heeger DJ (1998) Psychophysical evidence for a magnocellular pathway deficit in dyslexia. Vision Research 38:1555–1559
Duara R, Kushch A, Gross-Glenn K, Barker WW, Jallad B, Pascal S, Loewenstein DA, Sheldon J, Rabin M, Levin B, Lubs H (1991) Neuroanatomic differences between dyslexic and normal readers on magnetic resonance imaging scans. Archives of Neurology 48:410–416
Eden GF, Van Meter JW, Rumsey JM, Maisog JM, Woods RP, Zeffiro TA (1996) Abnormal processing of visual motion in dyslexia revealed by functional brain imaging. Nature 382:66–69
Esser G (1991) Was wird aus Kindern mit Teilleistungsschwächen? Enke, Stuttgart
Esser G, Schmidt M (1994) Children with specific reading retardation — early determinants and long-term outcome. Acta Paedopsychiatrica 56: 229–237
Farmer ME, Klein RM (1995) The evidence for a temporal processing deficit linked to dyslexia. A review Psychonomic Bulletin & Review 2: 460–493
Field LL, Kaplan BJ (1998) Absence of linkage of phonological coding dyslexia to chromosome 6p23-p21.3 in a large family data set. Am J Hum Genet 63:1448–1456
Fischer B, Bisealdi M, Hartnegg K (1998) Die Bedeutung der Blicksteuerung bei der Lese-Rechtschreibschwäche. Sprache, Stimme, Gehör 22:18–24
Fisher SE, Marlow AJ, Lamb J, Maestrini E, Williams DF, Richardson AJ, Weeks DE, Stein JF, Monaco AP (1999) A quantitative-trait locus on chromosome 6p influences different aspects of developmental dyslexia. Am J Hum Genet 64:146–156
Flowers DL, Wood, FB, Naylor CE (1991) Regional cerebral blood flow correlates of language processes in reading disability. Archives of Neurology 48:637–643
Frith C, Frith U (1996) A biological marker for dyslexia. Nature 382: 19–20
Froster U, Schulte-Körne G, Hebebrand H, Remschmidt H (1993) Cosegregation of balanced translocation with retarded speech development and dyslexia. Lancet 342: 178–179
Galaburda AM, Sherman GF, Rosen GD, Aboitiz F, Geschwind N (1985) Developmental dyslexia: Four consecutive patients with cortical anomalies. Annual Neurology 18:222–233
Galaburda AM (1989) Ordinary and extraordinary brain development: Anatomical variation in developmental dyslexia. Annals of Dyslexia 39:67–80
Galaburda A, Livingstone M (1993) Evidence for a magnocellular defect in developmental dyslexia. In: Tallal P, Galaburda AM, Llinás RR, von Euler C (eds) Temporal Information Processing in the Nervous System: Special Reference to Dyslexia and Dysphasia. Annals of the New York Academy of Sciences, New York 682:70–82
Gayan J, Smith SD, Cherny SS, Cardon LR, Fulker DW, Brower M, Olson RK, Pennington BF, De Fries JC (1999) Quantitative-trait locus for specific language and reading deficits on chromosome 6p. Am J Hum Genet 64:157–164
Geschwind N (1974) The development of the brain and the evolution of language. In: Geschwind, N (ed) Selected Papers on Language and the Brain. Reidel, Dordrecht pp 89–104
Geschwind N, Galaburda A (1985) Cerebral lateralization: Biological mechanisms, associations and pathology. Part I. A hypothesis and program for research. Archives of Neurology 42:428–459
Geyger G, Lettvin JY (1987) Peripheral vision in person with dyslexia. The New England Journal of Medicine 31:1238–1243
Grigorenko EL, Wood FB, Meyer MS, Hart LA, Speed WC, Shuster A, Pauls DL (1997) Suspectibility loci for distinct components of developmental dyslexia on chromosome 6 and 15. American Journal of Human Genetics 60:27–39
Grimm T, Noethen M, Schulte-Körne G (1998) Zur Genetik der Legasthenie. Sprache, Stimme, Gehör 22:8–12
Gross-Glenn K, Duara, R, Barker W., Loewenstein D, Chang J, Yoshii F, Apicella A, Pascal S, Boother T, Sevush S, Jallad B, Novoa L, Lubs H (1991) Positron emission tomographic studies during serial word-reading by normal and dyslexic adults. J Clin and Experimental Neuropsychology 13:531–544
Haffner J, Zerahn-Harting C, Pfüller U, Parzer P, Strehlow U, Resch F (1998) Auswirkungen und Bedeutung spezifischer Rechtschreibprobleme bei jungen Erwachsenen — empirische Befunde in einer epidemiologischen Stichprobe. Zeitschrift für Kinderund Jugendpsychiatrie und Psychotherapie 26:124–135
Hennighausen K; Remschmidt H, Warnke A (1994) Visually evoked potentials in boys with developmental dyslexia. European Child and Adolescent Psychiatry 3:72–18
Hennighausen K, Warnke A, Remschmidt H (1998) Electrophysiological correlates of semantic discrimination processes in dyslexic children. 14th International Congress of the International Association for Child and Adolescent Psychiatry and Allied Professions, Aug. 2–6, 98, Stockholm
Hinshelwood J (1904) A case of congenital word-blindness. British Medical Journal 2:1303–1304
Hinshelwood J (1917) Congenital Word-Blindness. Lewis, London
Horwitz B, Rumsey JM, Donohue BC (1998) Functional connectivity of the angular gyrus in normal reading and dyslexia. Proceedings of the National Academy of Sciences of the United States of America 95:8939–8944
Hynd GW, Semrúd-Cukeman M, Lorys AR, Novey ES, Euopulos D (1990): Brain morphology in developmental dyslexia and attention deficit disorder/hyperactivity. Archives of Neurology 47:9191–926
Johannes S, Kussmaul CL, Münte Th F, Magnun, G (1996) Developmental dyslexia: Passive visual stimulation provides no evidence for a magnocellular processing defect. Neuropsychologia 34:1123–1127
Klicpera C, Gasteiger-Klicpera B (1993) Lesen und Schreiben — Entwicklung und Schwierigkeiten: die Wiener Längsschnittuntersuchungen über die Entwicklung, den Verlauf und die Ursachen von Lese- und Schreibschwierigkeiten in der Pflichtschulzeit. Huber, Bern
Kubová Z, Kuba M, Peregrin J, Nováková V (1995) Visual evoked potential evidence for magnocellular system deficti in dyslexia. Physiological Research 44:87–89
Küspert P (1998) Phonologische Bewußtheit und Schriftspracherwerb: zu den Effekten vorschulischer Förderung der phonologischen Bewußtheit auf den Erwerb des Lesens und Rechtschreibens. Lang, Frankfurt
Kushch A, Gross-Glenn K, Jallad B (1993) Temporal lobe surface area measurements on MRT in normal and dyslexic readers. Neuropsychologia 31:811–821
Landerl K, Wimmer H, Frith U (1997) The impact of orthographic consistency on dyslexia. A German-English comparison. Cognition 63, 315–334
Leonhard CM, Voeller KKS, Lombardino LJ, Morris MK, Hynd GW, Alexander AW, Andersen HG, Garofalakis M, Honcyman, JC, Mao J, Agee F, Staab EV (1993) Anomalous cerebral structure in dyslexia revealed with magnetic resonance imaging. Archives of Neurology 50:461–469
Livingstone MS, Rosen CD, Dislane FW, Galaburda AM (1991) Physiological and anatomical evidence for a magnocellular defect in developmental dyslexia. Proc Natl Acad Sci USA 88:7943–7947
Lovegrove W (1993) Weakness in the transient visual system: a causal factor in dyslexia. In: Tallal P, Galaburda AM, Llinás RR, von Euler C (eds) Temporal information processing in the nervous system: Special reference to dyslexia and dysphasia. Annals of the New York Academy of Sciences, New York 682:70–82
Lovegrove W, Williams MC (1993) Visual temporal processing deficits in specific reading disability. In: Willows DM, Kruk RS, Corcos E (eds) Visual processes in reading and reading disabilities. Erlbaum L, Hillsdale, New York
Martos FJ, Vila J (1990) Difference in eye movements control among dyslexic, retarded readers and normal readers in the Spanish population. Reading and Writing: An Interdisciplinary Journal 2:175–188
Martos FJ, Marmolejo A (1993) Visible persistence and Dyslexia. In: Tallal P, Galaburda M, Llinás RR, von Euler C (eds) Temporal Information Processing in the Nervous System. Annals of New York Academy of Sciences, New York, 682:383–386
Mattis S, French JH, Rapin I (1975) Dyslexia in children and young adults: Three independent neuropsychological syndromes. Developmental Medicine and Child Neurology 17: 150–163
Maugham B, Gray G, Rutter M (1985) Reading retardation and antisocial behaviour: A follow-up into employment. Journal of Child Psychology and Psychiatry 26:741–758
Maughan B, Yule W (1995) Reading and other learning disabilities. In: Rutter M, Taylor E, Hersov L (eds) Child and Adolescent Psychiatry. Blackwell, Oxford, pp 647–665
Maugham B (1995) Annotation: Long-term outcomes of developmental reading problems. Journal of Child Psychology and Psychiatry 36: 357–371
Mayringer H, Wimmer H, Landerl K (1998) Die Vorhersage früher Lese- und Rechtschreibschwierigkeiten: Phonologische Schwächen als Prädiktoren. Zeitschrift für Entwicklungspsychologie und Pädagogische Psychologie 2:57–69
McGee R, Williams S, Share DL, Anderson J, Silva PA (1986) The relationsship between specific reading retardation, general reading backwardness and behavioural problems in a large sample of Dunedin boys: A longitudinal study from five to eleven years. J. Child Psychol. Psychiat. 27:597–610
McGee R, Share D, Moffitt TE, Williams S, Silva PA (1988) Reading disability, behaviour problems and juvenile delinquency. In: Saklofske DH, Eysenck SBG (eds) Individual Differences in Children and Adolescents: International perspectiveness. Holder & Stoughton, London, pp 150–172
Morgan WP (1896) A case of congenital wordblindness. British Medical Journal 2:13–78
Morton J, Frith U (1995) A structural approach to developmental psychopathology. In: Cicchetti D, Cohen DJ (eds) Developmental Psychopathology, Vol 1. Wiley, New York, pp 357–390
Naylor CE, Felton RH, Wood FB (1990) Adult outcome in developmental dyslexia. In Pavlidis GT (ed) Perspectives on Dyslexia. Vol 2. Wiley, London, pp 215–229
Njiokiktjien C (1994) Dyslexia: a neuroscientific puzzle. Acta Paedopsychiatrica 56:157–167
Olson RK, Wise B, Conners F, Rack J (1990) Organization, heritability, and remediation of component word recognition and language skills in disabled readers. In: Carr T H, Levy B A (eds) Reading and its development: component skills approaches. Academic Press, New York, pp 261–322
Olson RK, Porsberg H, Wise B (1994) Genes, environment and the development of orthographic skills. In: Berninger VW (ed) The Varieties of Orthographic Knowledge 1: Theoretical and Developmental Issues. Kluwer Academic Publishers, Dordrecht, pp 27–71
Orton ST (1928) Specific reading disability — strephosymbolia. Journal of the American Medical Association 90:1095–1099
Paulesu E, Frith U, Snowling M, Gallagher A, Morton J, Frakkowiak R, Frith C (1996) Is developmental dyslexia a disconnection syndrome? Brain 119:143–157
Pavlidis GT (1986) The role of eye movements in the diagnosis of dyslexia. In: Pavlidis GT, Fischer D (eds) Dyslexia. Its Neuropsychology and Treatment. Wiley, Chichester
Pavlidis GT (1990) Perspectives on Dyslexia. Vol. I. Neurology, Neuropsychology and Genetics. John Wiley & Sons, Chichester
Pennington BF (1991) Overview: introduction to special edition on genetics, neurology and neuropsychology of reading disabilities. Reading and Writing. An Interdisciplinary Journal 3:191–201
Pennington BF, Gilger J, Pauls D, Smith SSA, Smith SD, DeFries JC (1991) Evidence for a major gene transmission of developmental dyslexia. Journal of American Medical Association 18:1527–1534
Pirozzolo FJ (1979) The neuropsychology of developmental reading disorders. Praeger, New York
Rabin M, Wen L, Hepburn M, Lubs HA, Feldman E, Duara R (1993) Suggestive linkage of developmental dyslexia to chromosome 1p34–p36. Lancet 342:178
Rae C, Lee MA, Dixon RM, Blamire AM, Thompson CH, Styles P, Talcott J, Richardson AJ, Stein JF (1998) Metabolic abnormalities in developmental dyslexia detected by magnetic resonance spectroscopy. The Lancet 351:1849–1852
Rayner K (1986) Eye movements and the perceptual span: Evidence for dyslexic topology. In: Pavlidis GT, Fisher DF (eds) Dyslexia: Its neuropsychology and treatment. John Wiley and Sons, Chichester
Remschmidt H, Warnke A (1992) Visual information processing and cerebral activation in dyslexic boys: Quantitative EEG analysis during discrimination reading tasks. European Child and Adolescent Psychiatry 1:42–53
Robichon F, Habib M (1998) Abnormal collosal morphology in male adult dyslexics: Relationship to handedness and phonological abilities. Brain and Language 62:127–146
Roth E (1999) Prävention von Lese- und Rechtschreibschwierigkeiten: Evaluation einer vorschulischen Förderung der phonologischen Bewußtheit und der Buchstabenkenntnis. Lang, Frankfurt
Rumsey JM, Andreason P, Zametkin AJ King AC, Hamburger T, Aquino A, Hanahan P, Pikus A, Cohen RM (1995) Right frontotemporal activation by tonal memory in dyslexia. Biological Psychiatry 35:171–180
Rumsey JM, Casanova M, Mannheim GB, Patronas N, De Vaughn N, Hamburger SD, Aquino T (1996) Corpus callosum morphology, as measured with MRI, in dyslexic men. Biological Psychiatry 39:769–775
Rumsey JM, Nace K, Donohue B, Wise D, Maisorg JM, Andreason P (1997) A positron emission tomographic study of impaired word recognition and phonological processing in dyslexic men. Arch. Neurol. 54:562–573
Rutter M, Tizard J, Whitmore K (eds) (1970) Education, Health and Behaviour. Longham, London
Rutter M, Yule W (1975) The concept of specific reading retardation. Journal of Child Psychology and Psychiatry 125:181–197
Rutter M, Tizard J, Yule W, Graham P, Whitmore K (1976) Isle of Wight studies 1964–1974. Psychological Medicine 6:313–332
Schäfer WD (1998) Visuelle Wahrnehmung bei Legasthenie. Sprache, Stimme, Gehör 22:13–16
Schneider W (1993) The early prediction of reading and spelling. European Journal of Psychology of Education 3:199–205
Schneider W, Näslund JC (1993) The impact of early metalinguistic competences and memory capacity on reading and spelling in elementary school: Results of the Munich longitudinal study of the genesis of individual competences (LOGIC). European Journal of Psychology of Education 3:273–289
Schneider W, Visé M, Reimers P, Blaesser B (1994) Auswirkungen eines Trainings der sprachlichen Bewußtheit auf den Schriftspracherwerb in der Schule. Zeitschrift für Pädagogische Psychologie 8: 177–188
Schneider W, Küspert P, Roth E, Visé M, Marx H (1997) Short- and long-term effects of training phonological awareness in kindergarten: Evidence from two German studies. Journal of Experimental Child Psychology 66:311–340
Schulte-Körne G, Remschmidt H, Hebebrand J (1993) Zur Genetik der Lese-Rechtschreibschwäche. Zeitschrift für Kinder- und Jugendpsychiatrie 21:242–252
Schulte-Körne G, Deimel W, Müller K, Gutenbrunner C, Remschmidt H (1996) Familial aggregation of spelling disability. Journal of Child Psychology and Psychiatry 37: 817–822
Schulte-Körne G, Deimel W, Bartling J, Remschmidt H (1998) Die Bedeutung der auditiven Wahrnehmung und der phonologischen Bewußtheit für die Lese-Rechtschreibschwäche. Sprache, Stimme, Gehör 22:25–30
Schulte-Körne G, Grimm T, Nöthen MM, Müller-Myhsok B, Cichon S, Vogt IR, Propping P, Remschmidt H (1998) Evidence for linkage of spelling disability to chromosome 15. American Journal of Human Genetics 63:279–282
Schulte-Körne G, Deimel W, Bartling J, Remschmidt H (1998) Auditory processing and dyslexia: Evidence for a specific speech deficit. Neuro-Report 9:337–340
Schultz RT, Cho NK, Staib LH, Kier LE, Fletcher JM (1994) Brain morphology in normal and dyslexic children: The influence of sex and age. Annals of Neurology 35:732–742
Shankweiler D, Crain S, Katz L, Fowler AE, Liberman AM, Brady SA, Thornton R, Lundquist E, Dreyer I, Fletscher JM, Stuebing KK, Shaywitz SE, Shaywitz BA (1995) Cognitive profiles of reading-disabled children: Comparison of language skills in phonology, morphology, and syntax. Psychological Science 6:149–156
Shaywitz SE, Shaywitz BA, Fletcher JM, Escobar MD (1990) Prevalence of reading disability in boys and girls: Results of the Connecticut Longitudinal study. Journal of the American Medical association 264:998–1002
Shaywitz SE, Escobar MD, Shaywitz BA, Fletcher JM, Makuch R (1992) Evidence that dyslexia may represent the lower tail of a normal distribution of reading ability. New England Journal of Medicine 326:145–150
Shaywitz SE (1997) Legasthenie — gestörte Lautverarbeitung. Spektrum der Wissenschaft 68–76
Smith SD, Kimberling WJ, Penington BF, Lubs HA (1983) Specific reading disability: Identification of an inherited form through linkage analysis. Science 219:1345–1347
Smith SD, Kimberling WJ, Pennington BF (1991) Screening for multiple genes influencing dyslexia. Reading and Writing: An Interdisciplinary Journal 3:285–298
Stanovich KE (1994) Annotation: Does dyslexia exist? Journal of Child Psychology and Psychiatry 35: 579–595
Stein JF, Fowler S (1985) Effect of monocular occlusion on visuomotor perception and reading in dyslexic children. The Lancet 13:69–73
Stein J (1993) Dyslexia — impaired temporal information processing? In: Tallal P, Galaburda AM, Llinás RR, von Euler C (eds) Temporal Information Processing in the Nervous System: Special Reference to Dyslexia and Dysphasia. Annals of the New York Academy of Sciences, New York pp 682:83–86
Stephenson S (1907) Six cases of congenital word-blindness affecting three generations of one family. Ophthalmoscope 5:482–484
Stevenson J, Graham P, Fredman G, McLoughlin V (1987) A twin study of genetic influences on reading and spelling ability and disability. Journal of Child Psychology and Psychiatry 28:229–247
Stevenson J (1988) Which aspects of reading ability show a “hump” in their distribution? Applied Cognitive Psychology 2:77–85
Stevenson J (1991) Which aspects of processing text mediate genetic effects? Reading and Writing: An Interdisciplinary Journal 249–269
Strehlow U, Kluge R, Müller H, Haffner J (1992) Der langfristige Verlauf der Legasthenie über die Schulzeit hinaus. Katamnesen aus einer kinderpsychiatrischen Ambulanz. Zeitschrift für Kinder- und Jugendpsychiatrie 20:254–265
Strehlow U (1994) Katamnestic studies on dyslexia. Acta Paedopsychiatrica 56, 3:219–228
Strehlow U (1998) Der Verlauf der umschriebenen Lese-Rechtschreibschwäche. Sprache, Stimme, Gehör 22:31–33
Suchodoletz von W (1999) 100 Jahre LRS-Forschung — was wissen wirheute? Zeitschrift für Kinder- und Jugendpsychiatrie und Psychotherapie 27:199–206
Tallal P, Curtiss S (1990) Neurological Basis of Developmental Language Disorders. In: Rothenberger A (ed) Brain and Behavior in Child Psychiatry. Springer, Berlin
Tallal P, Galaburda AM, Llinás RR, von Euler C (1993) Temporal Information Processing in the Nervous System. Vol 682. The New York Academy of Sciences, New York
Tallal P, Miller S, Fitch, RH (1993) Neurobiological basis of speech: a case for the preeminence of temporal processing. In: Tallal P, Galaburda AM, Llinás RR, von Euler C (eds) Temporal Information Processing in the Nervous System: Special Reference to Dyslexia and Dysphasia. New York, 682:27–47
Valtin r (1972) Empirische Untersuchungen zur Legasthenie. Schroedel, Hannover
Vanni S, Uusitalo MA, Kiesilä P, Hari R (1997) Visual motion activates V5 in dyslexics. Neuro Report 8: 1939–1942
Vellutino FR (1980) Dyslexia. Theory and Research. The MIT Press. Cambridge
Wagner RK, Torgesen JK, Rashotte CA (1994) Development of reading-related phonological processing abilities: New evidence of bidirectional causality from a latent variable longitudinal study. Developmental Psychology 30:73–87
Wagner RK, Torgesen JK, Rashotte, CA, Hecht SA, Barker TA, Burgess SR, Donahue J, Garon T (1997) Changing relations between phonological processing abilities and word-level reading as children develop from beginning to skilled readers: A 5-year longitudinal study. Developmental Psychology 33: 468–479
Warnke A (1990) Legasthenie und Hirnfunktion. Neuropsychologische Befunde zur visuellen Informationsverarbeitung. Huber, Bern
Warnke A, Remschmidt H (1992) Visual information processing in developmentally dyslexic boys: A neuropsychological study. In: Remschmidt H, Schmidt MH (eds) Developmental Psychopathology. Hogrefe & Huber, Toronto, Bern, Göttingen pp 117–130
Warnke A, Remschmidt H, Hennighausen K (1994) Verbal information processing in dyslexia — data from a follow-up-experiment of neuro-psychological aspects and EEG. Acta Paedopsychiatrica 56, 3:203–208
Willows DM, Kruk, RS, Corcos E (eds) (1993) Visual Processes in Reading and Reading Disabilities. Lawrence Erlbaum Associates, Hillsdale
Wimmer H, Goswami U (1994) The influence of orthographic consistency on reading development: Word recognition in English and German children. Cognition 51:91–103
Wimmer H, Mayringer H, Landerl K (1998) Poor reading: A deficit in skill-automatization or a phonological deficit? Scientific Studies of Reading 2, 4:321–340
Wolff PH (1993) Impaired temporal resolution in developmental dyslexia. In: Tallal P, Galaburda AM, Llinás RR, von Euler C (eds) Temporal Information Processing in the Nervous System: Special Reference to Dyslexia and Dysphasia. Annals of the New York Academy of Sciences, New York, 682:87–103
World Health Organization (1992) Tenth Revision of the International Classification of Diseases. Chapter V (F): Mental and Behavioural Disorders
Yopp HK (1988) The validity and reliability of phonemic awareness tests. Reading Research Quarterly 23:159–177
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Warnke, A. Reading and spelling disorders: Clinical features and causes. European Child & Adolescent Psychiatry 8 (Suppl 3), S2–S12 (1999). https://doi.org/10.1007/PL00010689
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DOI: https://doi.org/10.1007/PL00010689