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Developmental surface dysgraphia without surface dyslexia.

J Richard Hanley1, Andreas Sotiropoulos1

  • 1a Department of Psychology , University of Essex , Colchester , UK.

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Summary
This summary is machine-generated.

This study details a case of developmental spelling impairment (dysgraphia) with intact reading skills. The findings highlight a specific difficulty with irregular words, supporting a dissociation between reading and spelling abilities.

Keywords:
Dysgraphia without dyslexiasurface dysgraphiasurface dyslexia

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Area of Science:

  • Neuroscience
  • Developmental Psychology
  • Linguistics

Background:

  • Examining developmental literacy problems requires understanding dissociations between reading and spelling.
  • Case studies offer valuable insights into specific cognitive impairments.

Observation:

  • An individual (N.K.) presented with developmental spelling impairment (dysgraphia) but no reading deficits.
  • This dissociation was evident in both his first (Greek) and second (English) languages.

Findings:

  • N.K. exhibited normal spelling for regular words and nonwords but struggled with words having atypical sound-letter associations.
  • Despite reading difficulties with irregular words, comprehension and oral reading remained intact.
  • The impairment appears selective, affecting access from phonology/semantics to orthography.

Implications:

  • Supports models of reading and spelling that posit distinct pathways for processing different word types.
  • Suggests specific developmental impairments can affect orthographic processing independently of reading abilities.
  • Provides evidence for the dual-route and triangle models of spelling in explaining literacy impairments.