Lexical effects in left neglect dyslexia: A study in Italian patients.
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| Title: | Lexical effects in left neglect dyslexia: A study in Italian patients. |
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| Authors: | Arduino, Lisa S., Burani, Cristina, Vallar, Giuseppe |
| Source: | Cognitive Neuropsychology. Jul2002, Vol. 19 Issue 5, p421-444. 24p. |
| Subjects: | Dyslexia, Reading, Unilateral neglect |
| Geographic Terms: | Italy |
| Abstract: | This study investigated whether and to what extent the reading performance of six Italian right-brain-damaged patients with left neglect dyslexia was affected by lexical variables. The lexicality of responses (either words or nonwords) and the distribution of substitution vs. omission neglect errors were measured. Patients were given the following tasks: (1) reading aloud monomorphemic words of different frequencies and nonwords with different degrees of similarity to real words (Experiment 1); (2) reading aloud morphologically complex (suffixed) derived words and morphologically complex (suffixed) nonwords (Experiment 2). Patients could be distinguished in terms of their sensitivity to the lexical status of the target. Four patients exhibited lexicality effects in their reading performance, while two patients did not. The dissociation is discussed in terms of the interaction between defective visuospatial analysis, which characterises neglect, and higher-order lexical knowledge. The suggestion is made that lexical effects in neglect dyslexia reflect a relative preservation of visuospatial processing of the left side of the letter string, its absence a more severe neglect disorder. This interpretation of the occurrence of lexical effects in left neglect dyslexia in terms of severity of the spatial disorder is specific to the domain of reading, however, and does not extend to other manifestations of unilateral spatial neglect. Finally, the relationship between error type (omissions vs. substitutions) and the absence vs. presence of lexical effects is considered. [ABSTRACT FROM AUTHOR] |
| Copyright of Cognitive Neuropsychology is the property of Taylor & Francis Ltd and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) | |
| Database: | Psychology and Behavioral Sciences Collection |
| FullText | Links: – Type: pdflink Text: Availability: 0 |
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| Header | DbId: pbh DbLabel: Psychology and Behavioral Sciences Collection An: 6933883 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: Lexical effects in left neglect dyslexia: A study in Italian patients. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Arduino%2C+Lisa+S%2E%22">Arduino, Lisa S.</searchLink><br /><searchLink fieldCode="AR" term="%22Burani%2C+Cristina%22">Burani, Cristina</searchLink><br /><searchLink fieldCode="AR" term="%22Vallar%2C+Giuseppe%22">Vallar, Giuseppe</searchLink> – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Cognitive+Neuropsychology%22">Cognitive Neuropsychology</searchLink>. Jul2002, Vol. 19 Issue 5, p421-444. 24p. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Dyslexia%22">Dyslexia</searchLink><br /><searchLink fieldCode="DE" term="%22Reading%22">Reading</searchLink><br /><searchLink fieldCode="DE" term="%22Unilateral+neglect%22">Unilateral neglect</searchLink> – Name: SubjectGeographic Label: Geographic Terms Group: Su Data: <searchLink fieldCode="DE" term="%22Italy%22">Italy</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: This study investigated whether and to what extent the reading performance of six Italian right-brain-damaged patients with left neglect dyslexia was affected by lexical variables. The lexicality of responses (either words or nonwords) and the distribution of substitution vs. omission neglect errors were measured. Patients were given the following tasks: (1) reading aloud monomorphemic words of different frequencies and nonwords with different degrees of similarity to real words (Experiment 1); (2) reading aloud morphologically complex (suffixed) derived words and morphologically complex (suffixed) nonwords (Experiment 2). Patients could be distinguished in terms of their sensitivity to the lexical status of the target. Four patients exhibited lexicality effects in their reading performance, while two patients did not. The dissociation is discussed in terms of the interaction between defective visuospatial analysis, which characterises neglect, and higher-order lexical knowledge. The suggestion is made that lexical effects in neglect dyslexia reflect a relative preservation of visuospatial processing of the left side of the letter string, its absence a more severe neglect disorder. This interpretation of the occurrence of lexical effects in left neglect dyslexia in terms of severity of the spatial disorder is specific to the domain of reading, however, and does not extend to other manifestations of unilateral spatial neglect. Finally, the relationship between error type (omissions vs. substitutions) and the absence vs. presence of lexical effects is considered. [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of Cognitive Neuropsychology is the property of Taylor & Francis Ltd and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.) |
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| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.1080/02643290244000013 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 24 StartPage: 421 Subjects: – SubjectFull: Dyslexia Type: general – SubjectFull: Reading Type: general – SubjectFull: Unilateral neglect Type: general – SubjectFull: Italy Type: general Titles: – TitleFull: Lexical effects in left neglect dyslexia: A study in Italian patients. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Arduino, Lisa S. – PersonEntity: Name: NameFull: Burani, Cristina – PersonEntity: Name: NameFull: Vallar, Giuseppe IsPartOfRelationships: – BibEntity: Dates: – D: 01 M: 07 Text: Jul2002 Type: published Y: 2002 Identifiers: – Type: issn-print Value: 02643294 Numbering: – Type: volume Value: 19 – Type: issue Value: 5 Titles: – TitleFull: Cognitive Neuropsychology Type: main |
| ResultId | 1 |