Comprehension of syntax and grammar in dementia

محفوظ في:
التفاصيل البيبلوغرافية
الحاوية / القاعدة:Alzheimer's & Dementia vol. 21 (Dec 1, 2025)
المؤلف الرئيسي: Ayyar, Anusha
مؤلفون آخرون: N, Shivashankar, Varghese, Mathew, Philip, Mariamma
منشور في:
John Wiley & Sons, Inc.
الموضوعات:
الوصول للمادة أونلاين:Citation/Abstract
Full Text - PDF
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LEADER 00000nab a2200000uu 4500
001 3286914671
003 UK-CbPIL
022 |a 1552-5260 
022 |a 1552-5279 
024 7 |a 10.1002/alz70857_106883  |2 doi 
035 |a 3286914671 
045 0 |b d20251201 
100 1 |a Ayyar, Anusha  |u Octave Speech Centre, Bengaluru, Karnataka, India, 
245 1 |a Comprehension of syntax and grammar in dementia 
260 |b John Wiley & Sons, Inc.  |c Dec 1, 2025 
513 |a Journal Article 
520 3 |a Background Sentence comprehension involves the interaction of various complex linguistic (syntactic and grammatical structures) as well as non‐linguistic processes (working memory). There is a lack of consensus among research studies regarding the presence of sentence comprehension deficits in dementia as well as the underlying causes. The present study was conducted to investigate the specific nature and causes of breakdown in sentence comprehension abilities in Kannada (Dravidian Indian language) speaking persons with dementia. Method 103 persons with mild and moderate dementia [Alzheimer's Disease (n&#xa0;=&#xa0;55); Vascular dementia (n&#xa0;=&#xa0;31); and Frontotemporal dementia (n&#xa0;=&#xa0;17)] as well as 64 normal age matched subjects participated in the study. The effect of sentence length and complexity was assessed using the ‘Revised Token Test ‘(RTT‐Kannada). Grammaticality judgement was evaluated using the ‘Linguistic Profile Test’ (LPT‐Kannada). Baseline scores of cognitive abilities were ascertained using the `Hindi Mental Scale Examination’ (HMSE). Result ANOVA and post‐hoc tests revealed a statistically significant difference (p&#xa0;<0.001) between the control group and dementia group (mild and moderate) on the total score of RTT and LPT as well as on the subsections. In the RTT, a declining trend in performance from R1 to R10 (increasing sentence length and complexity) was observed in all the 3 groups, with a steeper decline in the moderate dementia group. In the LPT, the most significant deficits were observed for conditional clauses and participle constructions. A qualitative response analysis was also carried out. Pearson's correlation coefficient showed a strong positive correlation (p&#xa0;<0.001) between the syntactic comprehension tests (LPT and RTT) as well as between the HMSE scores and syntactic processing skills. Conclusion The results of the study demonstrated the presence of syntactic and grammatical processing deficits in dementia. The study highlights that grammatical incompetence could suggest a genuine linguistic deficit whereas sentence structure analysis through post interpretation, could place higher demands on working memory. Hence cognitive resource deficits could also be a possible underlying cause for the syntactic comprehension deficits. Further studies are required to explore the interaction of cognitive processes and syntactic comprehension deficits. 
653 |a Kannada language 
653 |a Sentence structure 
653 |a Comprehension 
653 |a Hindi language 
653 |a Syntactic processing 
653 |a Cognition 
653 |a Dementia 
653 |a Politics 
653 |a Grammaticality 
653 |a Cognitive ability 
653 |a Conditional clauses 
653 |a Frontotemporal 
653 |a Short term memory 
653 |a Syntactic structures 
653 |a Variance analysis 
653 |a Syntax 
653 |a Linguistics 
653 |a Syntactic complexity 
653 |a Tests 
653 |a Groups 
653 |a Alzheimer's disease 
700 1 |a N, Shivashankar  |u National Institute of Mental Health And Neurosciences, Bengaluru, Karnataka, India, 
700 1 |a Varghese, Mathew  |u St John's Medical College, Bengaluru, Karnataka, India, 
700 1 |a Philip, Mariamma  |u National Institute of Mental Health and Neurosciences, Bengaluru, India, 
773 0 |t Alzheimer's & Dementia  |g vol. 21 (Dec 1, 2025) 
786 0 |d ProQuest  |t Consumer Health Database 
856 4 1 |3 Citation/Abstract  |u https://www.proquest.com/docview/3286914671/abstract/embedded/6A8EOT78XXH2IG52?source=fedsrch 
856 4 0 |3 Full Text - PDF  |u https://www.proquest.com/docview/3286914671/fulltextPDF/embedded/6A8EOT78XXH2IG52?source=fedsrch