Processing sentence negation in spanish-speaking people with aphasia
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Notice bibliographique
Résumé
Background People with aphasia (PWA) experience difficulty producing and comprehending sentences, but relatively little is known about their processing of sentences with negation, a universal phenomenon in human language. Previous studies that have investigated the processing of sentence negation in aphasia have yielded mixed results. In some investigations, people with nonfluent aphasia did not have greater difficulty generating sentences with negation as compared to affirmative sentences. In contrast, other studies found lower accuracy in processing sentences with negation compared to sentences without negation.Aim The aim of this study was to advance our understanding of negation processing in PWA. The study asked whether Spanish-speaking people with nonfluent aphasia have difficulty comprehending and producing sentences with negation markers and whether that difficulty varies across sentence structures and tasks.Methods Ten native speakers of Spanish participated in the study: five people with nonfluent aphasia and a control group of five neurologically healthy people. A negation battery was designed that included four tasks: Sentence-Picture Matching Task, Anagram Task, Repetition Task, and Say-the-Opposite Task. The stimuli in the task conditions included sentences with different argument structures (subject-verb vs. subject-verb-object), tense (sentences with verbs in present simple vs. present progressive tense), and negative concord (never/always; something/anything).Results Analyses of performance accuracy demonstrated that, across all tasks, neurologically healthy people performed at ceiling. For the PWA, response accuracy varied across tasks, with higher performance on the Sentence-Picture Matching and the Anagram tasks and lower performance on the Repetition and Say-the-Opposite tasks. Further analysis of the Say-the-Opposite task demonstrated an interaction between argument structure and negation as well as an effect of negative concord. No reliable effect of tense was observed. Furthermore, the errors committed by the participants demonstrated difficulty with morphosyntactic aspects of the negation markers.Conclusions The results support the view that people with nonfluent aphasia have difficulty with negation but that difficulty varies across tasks and is modulated by morphosyntactic properties of the negation markers. The present study highlights the advantages of employing task batteries with varying sentence structures rather than single tasks in order to further our understanding of the processing of sentences with negation.
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Imitation des enseignantsNi prévalence calibrée, ni vérité terrain. Validation humaine à venir. Apprise à partir de 10 348 étiquettes directes de Codex et de 10 348 étiquettes directes de Gemma. Le mode candidate est l'union des têtes enseignantes seuillées; le consensus est leur intersection. Ces sorties portent le statut machine_predicted_unvalidated et ne sont ni des étiquettes humaines ni des étiquettes directes de modèles de pointe.
Scores Codex et Gemma par catégorie
| Catégorie | Codex | Gemma |
|---|---|---|
| Métarecherche | 0,000 | 0,000 |
| Méta-épidémiologie (sens strict) | 0,000 | 0,000 |
| Méta-épidémiologie (sens large) | 0,000 | 0,000 |
| Bibliométrie | 0,000 | 0,001 |
| Études des sciences et des technologies | 0,000 | 0,000 |
| Communication savante | 0,000 | 0,000 |
| Science ouverte | 0,000 | 0,000 |
| Intégrité de la recherche | 0,000 | 0,000 |
| Charge utile insuffisante (le modèle a refusé de juger) | 0,000 | 0,000 |
Scores machine (provisoires)
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Scores de référence d'un modèle non mature (critères de maturité non atteints, 7 itérations). Un score ordonne; il n'affirme jamais une catégorie.
score_only:v0-immature-baseline · tel quel depuis la passe de notation : score_only signifie que le nombre peut ordonner les travaux, et qu'aucune étiquette de catégorie n'en découle