Double dissociation in optokinetic stimulation sensitivity between omission and substitution reading errors in neglect dyslexia (Articolo in rivista)

Type
Label
  • Double dissociation in optokinetic stimulation sensitivity between omission and substitution reading errors in neglect dyslexia (Articolo in rivista) (literal)
Anno
  • 2013-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.3389/fnhum.2013.00581 (literal)
Alternative label
  • Daini R, Albonico A, Malaspina M, Martelli M, Primativo S & Arduino LS (2013)
    Double dissociation in optokinetic stimulation sensitivity between omission and substitution reading errors in neglect dyslexia
    in Frontiers in human neuroscience
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Daini R, Albonico A, Malaspina M, Martelli M, Primativo S & Arduino LS (literal)
Pagina inizio
  • 1-10 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 7 (literal)
Rivista
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#pagineTotali
  • 10 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • Università Milano-Bicocca, La Sapienza Roma, Lumsa Università, ISTC-CNR (literal)
Titolo
  • Double dissociation in optokinetic stimulation sensitivity between omission and substitution reading errors in neglect dyslexia (literal)
Abstract
  • Although omission and substitution errors in neglect dyslexia (ND) patients have always been considered as different manifestations of the same acquired reading disorder, recently, we proposed a new dual mechanism model. While omissions are related to the exploratory disorder which characterizes unilateral spatial neglect (USN), substitutions are due to a perceptual integration mechanism. A consequence of this hypothesis is that specific training for omission-typeNDpatientswould aim at restoring the oculo-motor scanning and should not improve reading in substitution-type ND.With this aim we administered an optokinetic stimulation (OKS) to two brain-damaged patients with both USN and ND, MA and EP, who showed ND mainly characterized by omissions and substitutions, respectively. MA also showed an impairment in oculo-motor behavior with a non-reading task, while EP did not.The two patients presented a dissociation with respect to their sensitivity to OKS, so that, as expected, MA was positively affected, while EP was not. Our results confirm a dissociation between the two mechanisms underlying omission and substitution reading errors in ND patients. Moreover, they suggest that such a dissociation could possibly be extended to the effectiveness of rehabilitative procedures, and that patients who mainly omit contralesional-sided letters would benefit from OKS. (literal)
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