Neglect dyslexia (ND) is reviewed, based on published single-patient and group studies. ND is frequently associated with right hemispheric damage and unilateral spatial neglect (USN), and typically involves the left side of the letter string. Left-brain-damaged patients showing ND, ipsilateral (left) or contralateral (right) to the side of the left-sided hemispheric lesion, have also been reported, as well as a few patients with bilateral damage, with more frequently left than right ND. As USN, ND is temporarily ameliorated by lateralized stimulations (vestibular caloric, visual prism adaptation). ND may occur independent of USN, suggesting the damage to specific visuospatial representational/attentional systems, supporting reading. ND errors comprise omission, substitution, and, less frequently, addition of letters on one side of the stimulus, resulting in words or nonwords, also with reference to the stimulus' linguistic features. Patients with ND may show preserved lexical-morphological effects and implicit processing, up to the semantic level, of the misread string. This preserved processing is a feature of ND, shared with the USN syndrome. The mechanisms modulating error type and lexical-morphological effects are partly independent of each other. Different levels of representation of the letter string may be affected, giving rise to egocentric, stimulus-centred, and word-centred patterns of impairment. The anatomical correlates of ND include the temporo-parieto-occipital regions. © 2010 Springer-Verlag.

Vallar, G., Burani, C., Arduino, L. (2010). Neglect dyslexia: A review of the neuropsychological literature. EXPERIMENTAL BRAIN RESEARCH, 206(2), 219-235 [10.1007/s00221-010-2386-0].

Neglect dyslexia: A review of the neuropsychological literature

VALLAR, GIUSEPPE
;
2010

Abstract

Neglect dyslexia (ND) is reviewed, based on published single-patient and group studies. ND is frequently associated with right hemispheric damage and unilateral spatial neglect (USN), and typically involves the left side of the letter string. Left-brain-damaged patients showing ND, ipsilateral (left) or contralateral (right) to the side of the left-sided hemispheric lesion, have also been reported, as well as a few patients with bilateral damage, with more frequently left than right ND. As USN, ND is temporarily ameliorated by lateralized stimulations (vestibular caloric, visual prism adaptation). ND may occur independent of USN, suggesting the damage to specific visuospatial representational/attentional systems, supporting reading. ND errors comprise omission, substitution, and, less frequently, addition of letters on one side of the stimulus, resulting in words or nonwords, also with reference to the stimulus' linguistic features. Patients with ND may show preserved lexical-morphological effects and implicit processing, up to the semantic level, of the misread string. This preserved processing is a feature of ND, shared with the USN syndrome. The mechanisms modulating error type and lexical-morphological effects are partly independent of each other. Different levels of representation of the letter string may be affected, giving rise to egocentric, stimulus-centred, and word-centred patterns of impairment. The anatomical correlates of ND include the temporo-parieto-occipital regions. © 2010 Springer-Verlag.
Articolo in rivista - Articolo scientifico
Male; Aged, 80 and over; Middle Aged; Perceptual Disorders; Female; Neuropsychological Tests; Functional Laterality; Aged; Reading; Dyslexia; Humans;
English
2010
206
2
219
235
none
Vallar, G., Burani, C., Arduino, L. (2010). Neglect dyslexia: A review of the neuropsychological literature. EXPERIMENTAL BRAIN RESEARCH, 206(2), 219-235 [10.1007/s00221-010-2386-0].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10281/21916
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