Callosal transfer in different subtypes of developmental dyslexia

F. Fabbro, S. Pesenti, A. Facoetti, M. Bonanomi, L. Libera, M. L. Lorusso

Research output: Contribution to journalArticlepeer-review

Abstract

Sixteen controls (age 6-13) and 20 native Italian children with developmental dyslexia (age 7-15) received a test of callosal transfer of tactile information. Among the dyslexic children, 7 had a diagnosis of L-type, 7 of P-type and 6 of M-type dyslexia according to Bakker's classification. Both control children and children with dyslexia made a significantly larger number of errors in the crossed localization condition (implying callosal transfer of tactile information) vs. the uncrossed condition. In the same condition, children with dyslexia made a significantly larger number of errors than controls. In the crossed localization condition L-types and M-types made a significantly larger number of errors than P-type and controls, while there was no significant difference in performance between P-types and controls. These findings are discussed in terms of defective callosal transfer or deficient somatosensory representation in children with L- and M-dyslexia.

Original languageEnglish
Pages (from-to)65-73
Number of pages9
JournalCortex
Volume37
Issue number1
Publication statusPublished - 2001

Keywords

  • Callosal transfer
  • Corpus callosum
  • Subtypes of developmental dyslexia
  • Tactile information

ASJC Scopus subject areas

  • Experimental and Cognitive Psychology
  • Neuropsychology and Physiological Psychology
  • Cognitive Neuroscience
  • Neuroscience(all)

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