German Language Adaptation of the NAVS (NAVS-G) and of the NAT (NAT-G): Testing Grammar in Aphasia
Grammar provides the framework for understanding and producing language. In aphasia, an acquired language disorder, grammatical deficits are diversified and widespread. However, the few assessments for testing grammar in the German language do not consider current linguistic, psycholinguistic, and f...
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| Format: | Article |
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MDPI AG
2021-04-01
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| Series: | Brain Sciences |
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| Online Access: | https://www.mdpi.com/2076-3425/11/4/474 |
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| author | Ruth Ditges Elena Barbieri Cynthia K. Thompson Sandra Weintraub Cornelius Weiller Marek-Marsel Mesulam Dorothee Kümmerer Nils Schröter Mariacristina Musso |
| author_facet | Ruth Ditges Elena Barbieri Cynthia K. Thompson Sandra Weintraub Cornelius Weiller Marek-Marsel Mesulam Dorothee Kümmerer Nils Schröter Mariacristina Musso |
| author_sort | Ruth Ditges |
| collection | DOAJ |
| description | Grammar provides the framework for understanding and producing language. In aphasia, an acquired language disorder, grammatical deficits are diversified and widespread. However, the few assessments for testing grammar in the German language do not consider current linguistic, psycholinguistic, and functional imaging data, which have been shown to be crucial for effective treatment. This study developed German language versions of the Northwestern Assessment of Verbs and Sentences (NAVS-G) and the Northwestern Anagram Test (NAT-G) to examine comprehension and production of verbs, controlling for the number and optionality of verb arguments, and sentences with increasing syntactic complexity. The NAVS-G and NAT-G were tested in 27 healthy participants, 15 right hemispheric stroke patients without aphasia, and 15 stroke patients with mild to residual aphasia. Participants without aphasia showed near-perfect performance, with the exception of (object) relative sentences, where accuracy was associated with educational level. In each patient with aphasia, deficits in more than one subtest were observed. The within and between population-groups logistic mixed regression analyses identified significant impairments in processing syntactic complexity at the verb and sentence levels. These findings indicate that the NAVS-G and NAT-G have potential for testing grammatical competence in (German) stroke patients. |
| first_indexed | 2024-03-10T12:30:08Z |
| format | Article |
| id | doaj.art-a21577dbca01434d865889aa99705148 |
| institution | Directory Open Access Journal |
| issn | 2076-3425 |
| language | English |
| last_indexed | 2024-03-10T12:30:08Z |
| publishDate | 2021-04-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Brain Sciences |
| spelling | doaj.art-a21577dbca01434d865889aa997051482023-11-21T14:45:05ZengMDPI AGBrain Sciences2076-34252021-04-0111447410.3390/brainsci11040474German Language Adaptation of the NAVS (NAVS-G) and of the NAT (NAT-G): Testing Grammar in AphasiaRuth Ditges0Elena Barbieri1Cynthia K. Thompson2Sandra Weintraub3Cornelius Weiller4Marek-Marsel Mesulam5Dorothee Kümmerer6Nils Schröter7Mariacristina Musso8Department of Neurology, University Medical Center Freiburg, Breisacherstrasse 64, 79106 Freiburg, GermanyDepartment of Communication Sciences and Disorders, Northwestern University, Evanston, IL 60208, USADepartment of Communication Sciences and Disorders, Northwestern University, Evanston, IL 60208, USAMesulam Center for Cognitive Neurology and Alzheimer’s Disease, Feinberg School of Medicine, Northwestern University, Chicago, IL 60611, USADepartment of Neurology, University Medical Center Freiburg, Breisacherstrasse 64, 79106 Freiburg, GermanyMesulam Center for Cognitive Neurology and Alzheimer’s Disease, Feinberg School of Medicine, Northwestern University, Chicago, IL 60611, USADepartment of Neurology, University Medical Center Freiburg, Breisacherstrasse 64, 79106 Freiburg, GermanyDepartment of Neurology, University Medical Center Freiburg, Breisacherstrasse 64, 79106 Freiburg, GermanyDepartment of Neurology, University Medical Center Freiburg, Breisacherstrasse 64, 79106 Freiburg, GermanyGrammar provides the framework for understanding and producing language. In aphasia, an acquired language disorder, grammatical deficits are diversified and widespread. However, the few assessments for testing grammar in the German language do not consider current linguistic, psycholinguistic, and functional imaging data, which have been shown to be crucial for effective treatment. This study developed German language versions of the Northwestern Assessment of Verbs and Sentences (NAVS-G) and the Northwestern Anagram Test (NAT-G) to examine comprehension and production of verbs, controlling for the number and optionality of verb arguments, and sentences with increasing syntactic complexity. The NAVS-G and NAT-G were tested in 27 healthy participants, 15 right hemispheric stroke patients without aphasia, and 15 stroke patients with mild to residual aphasia. Participants without aphasia showed near-perfect performance, with the exception of (object) relative sentences, where accuracy was associated with educational level. In each patient with aphasia, deficits in more than one subtest were observed. The within and between population-groups logistic mixed regression analyses identified significant impairments in processing syntactic complexity at the verb and sentence levels. These findings indicate that the NAVS-G and NAT-G have potential for testing grammatical competence in (German) stroke patients.https://www.mdpi.com/2076-3425/11/4/474syntactic competenceaphasiaaphasia’s therapy |
| spellingShingle | Ruth Ditges Elena Barbieri Cynthia K. Thompson Sandra Weintraub Cornelius Weiller Marek-Marsel Mesulam Dorothee Kümmerer Nils Schröter Mariacristina Musso German Language Adaptation of the NAVS (NAVS-G) and of the NAT (NAT-G): Testing Grammar in Aphasia Brain Sciences syntactic competence aphasia aphasia’s therapy |
| title | German Language Adaptation of the NAVS (NAVS-G) and of the NAT (NAT-G): Testing Grammar in Aphasia |
| title_full | German Language Adaptation of the NAVS (NAVS-G) and of the NAT (NAT-G): Testing Grammar in Aphasia |
| title_fullStr | German Language Adaptation of the NAVS (NAVS-G) and of the NAT (NAT-G): Testing Grammar in Aphasia |
| title_full_unstemmed | German Language Adaptation of the NAVS (NAVS-G) and of the NAT (NAT-G): Testing Grammar in Aphasia |
| title_short | German Language Adaptation of the NAVS (NAVS-G) and of the NAT (NAT-G): Testing Grammar in Aphasia |
| title_sort | german language adaptation of the navs navs g and of the nat nat g testing grammar in aphasia |
| topic | syntactic competence aphasia aphasia’s therapy |
| url | https://www.mdpi.com/2076-3425/11/4/474 |
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