Abstract:
AIMS:The study explores how speech measures may be linked to language profiles in participants with Alzheimer's disease (AD) and how these profiles could distinguish AD from changes associated with normal aging. METHODS:We analysed simple sentences spoken by older adults with and without AD. Spectrographic analysis of temporal and acoustic characteristics was carried out using the Praat software. RESULTS:We found that measures of speech, such as variations in the percentage of voice breaks, number of periods of voice, number of voice breaks, shimmer (amplitude perturbation quotient), and noise-to-harmonics ratio, characterise people with AD with an accuracy of 84.8%. DISCUSSION:These measures offer a sensitive method of assessing spontaneous speech output in AD, and they discriminate well between people with AD and healthy older adults. This method of evaluation is a promising tool for AD diagnosis and prognosis, and it could be used as a dependent measure in clinical trials.
journal_name
Dement Geriatr Cogn Disordjournal_title
Dementia and geriatric cognitive disordersauthors
Meilán JJ,Martínez-Sánchez F,Carro J,López DE,Millian-Morell L,Arana JMdoi
10.1159/000356726subject
Has Abstractpub_date
2014-01-01 00:00:00pages
327-34issue
5-6eissn
1420-8008issn
1421-9824pii
000356726journal_volume
37pub_type
杂志文章abstract:BACKGROUND/AIMS:Elderly patients with dementia have a higher risk of falls and fractures as compared to cognitively intact elderly subjects. To investigate whether psychological distress of the caregiver might predispose older persons with Alzheimer disease (AD) to falls and fractures, we performed a prospective cohort...
journal_title:Dementia and geriatric cognitive disorders
pub_type: 杂志文章
doi:10.1159/000288774
更新日期:2010-01-01 00:00:00
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journal_title:Dementia and geriatric cognitive disorders
pub_type: 杂志文章
doi:10.1159/000101957
更新日期:2007-01-01 00:00:00
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journal_title:Dementia and geriatric cognitive disorders
pub_type: 杂志文章
doi:10.1159/000295115
更新日期:2010-01-01 00:00:00
abstract:BACKGROUND/AIMS:The frontal assessment battery (FAB) is reported to be a useful tool for screening frontal function. However, the neural substrates involved remain to be elucidated. The aim of the present study was to identify the brain regions responsible for FAB performance in patients with early dementia. We sought ...
journal_title:Dementia and geriatric cognitive disorders
pub_type: 杂志文章
doi:10.1159/000198687
更新日期:2009-01-01 00:00:00
abstract::Psychosis is common in patients with Alzheimer's disease (AD) and contributes substantially to patient morbidity and caregiver distress. Antipsychotic medications are used to treat psychosis and other psychiatric or behavioral symptoms in AD, although optimal treatment guidelines have been elusive. Choosing the most a...
journal_title:Dementia and geriatric cognitive disorders
pub_type: 杂志文章,评审
doi:10.1159/000074279
更新日期:2004-01-01 00:00:00
abstract:BACKGROUND:Memantine is a moderate affinity N-methyl-D-aspartate receptor antagonist approved for treatment of Alzheimer's disease (AD). In AD, tau is abnormally hyperphosphorylated. However, no significant changes of phosphorylated tau levels in CSF are found at follow-up in studies with AD patients. It has been shown...
journal_title:Dementia and geriatric cognitive disorders
pub_type: 杂志文章
doi:10.1159/000107099
更新日期:2007-01-01 00:00:00
abstract::The aim of this study was to determine the frequency of ubiquitin-positive inclusions (UPI) in dementia lacking distinctive histology (DLDH), and their relationship to other pathologic features, such as hippocampal sclerosis (HpScl), as well as genetic factors. Routine and immunohistochemical studies were carried out ...
journal_title:Dementia and geriatric cognitive disorders
pub_type: 杂志文章
doi:10.1159/000077168
更新日期:2004-01-01 00:00:00
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journal_title:Dementia and geriatric cognitive disorders
pub_type: 杂志文章
doi:10.1159/000140804
更新日期:2008-01-01 00:00:00
abstract::The membrane-bound glycoprotein, amyloid precursor protein (APP), plays a central role in Alzheimer's disease (AD). The present paper investigates the neuritogenic-neurotoxic properties of this protein and relates them to possible aetiopathological mechanisms in AD. Marked differences in neuritic differentiation were ...
journal_title:Dementia and geriatric cognitive disorders
pub_type: 杂志文章
doi:10.1159/000051234
更新日期:2001-01-01 00:00:00
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journal_title:Dementia and geriatric cognitive disorders
pub_type: 杂志文章,评审
doi:10.1159/000507078
更新日期:2020-01-01 00:00:00
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journal_title:Dementia and geriatric cognitive disorders
pub_type: 杂志文章
doi:10.1159/000151241
更新日期:2008-01-01 00:00:00
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journal_title:Dementia and geriatric cognitive disorders
pub_type: 杂志文章
doi:10.1159/000323867
更新日期:2011-01-01 00:00:00
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journal_title:Dementia and geriatric cognitive disorders
pub_type: 杂志文章
doi:10.1159/000089251
更新日期:2006-01-01 00:00:00
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journal_title:Dementia and geriatric cognitive disorders
pub_type: 历史文章,杂志文章
doi:10.1159/000017171
更新日期:1999-09-01 00:00:00
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journal_title:Dementia and geriatric cognitive disorders
pub_type: 杂志文章
doi:10.1159/000088249
更新日期:2005-01-01 00:00:00
abstract:AIM:The aim of this study was standardization and validation of the Mini-Mental State Examination (MMSE) in the general Croatian aging population. METHODS:Three-hundred and forty-four participants underwent the MMSE test, 217 cognitively healthy subjects without neurological and psychiatric disorders and 127 patients ...
journal_title:Dementia and geriatric cognitive disorders
pub_type: 杂志文章
doi:10.1159/000339596
更新日期:2012-01-01 00:00:00
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journal_title:Dementia and geriatric cognitive disorders
pub_type: 杂志文章
doi:10.1159/000319535
更新日期:2010-01-01 00:00:00
abstract:BACKGROUND:Studies of associations between serum lipids and Alzheimer's disease (AD) or other dementias in the elderly show conflicting results, perhaps due to misclassification of the various dementias. METHODS:For 358 nursing home residents, serum lipids were studied at admission and diagnoses established at autopsy...
journal_title:Dementia and geriatric cognitive disorders
pub_type: 杂志文章
doi:10.1159/000189268
更新日期:2009-01-01 00:00:00
abstract::Donepezil HCI is a piperidine-based reversible acetylcholinesterase (AChE) inhibitor, chemically distinct from other cholinesterase (ChE) inhibitors and rationally designed to treat the symptoms of Alzheimer's disease (AD). It is highly selective for AChE in the central nervous system (CNS), with little or no affinity...
journal_title:Dementia and geriatric cognitive disorders
pub_type: 杂志文章,评审
doi:10.1159/000051201
更新日期:1998-01-01 00:00:00
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journal_title:Dementia and geriatric cognitive disorders
pub_type: 杂志文章
doi:10.1159/000194658
更新日期:2009-01-01 00:00:00
abstract::We assessed the role of the APOE genotype and prion protein polymorphism at codon 129 in predicting the clinical duration of 92 neuropathologically confirmed sporadic Alzheimer's disease patients. Analyses of survival showed that the absence of the APOE epsilon 4 allele in heterozygous codon 129 PRNP carriers is a neg...
journal_title:Dementia and geriatric cognitive disorders
pub_type: 杂志文章
doi:10.1159/000119730
更新日期:2008-01-01 00:00:00
abstract:BACKGROUND/AIMS:To investigate neuroanatomical substrates of unawareness of memory deficits in patients with early Alzheimer's disease (AD). METHODS:We compared regional perfusion deficits between AD patients with awareness (n = 19) and unawareness (n = 19). SPECT data were analyzed by statistical brain imaging method...
journal_title:Dementia and geriatric cognitive disorders
pub_type: 杂志文章
doi:10.1159/000119594
更新日期:2008-01-01 00:00:00
abstract:BACKGROUND AND PURPOSE:Cognitive impairment (CI) is frequent after stroke, but data from population-based stroke cohorts on the natural course of CI are limited. The purpose of this study was to determine changes in cognitive status over 3 years after stroke. METHODS:Data were collected from the Erlangen Stroke Projec...
journal_title:Dementia and geriatric cognitive disorders
pub_type: 杂志文章
doi:10.1159/000327358
更新日期:2011-01-01 00:00:00
abstract:AIMS:To investigate the effects of rivastigmine capsule 3-12 mg/day over 24 weeks on activities of daily living (ADLs) in patients with dementia associated with Parkinson's disease (PDD). METHODS:Post hocanalysis of a prospective, multicenter, randomized, double-blind, placebo-controlled trial in patients with PDD (>o...
journal_title:Dementia and geriatric cognitive disorders
pub_type: 杂志文章,多中心研究,随机对照试验
doi:10.1159/000305100
更新日期:2010-01-01 00:00:00
abstract:BACKGROUND:Our aim was to evaluate and compare the diagnostic properties of 5 screening tests for the diagnosis of mild Alzheimer disease (AD). METHODS:We conducted a prospective and cross-sectional study of 92 patients with mild AD and of 68 healthy controls from our Department of Neurology. The diagnostic properties...
journal_title:Dementia and geriatric cognitive disorders
pub_type: 杂志文章
doi:10.1159/000469658
更新日期:2017-01-01 00:00:00
abstract::We evaluated the sensitivity and specificity of our French version of Addenbrooke's cognitive examination (ACE) to detect dementia in our patient population. One hundred and fifty-eight cases were included in the study. In our patient series, the sensitivity for diagnosing dementia with a Mini-Mental State Examination...
journal_title:Dementia and geriatric cognitive disorders
pub_type: 杂志文章
doi:10.1159/000080965
更新日期:2005-01-01 00:00:00
abstract::Although myoclonus commonly occurs in a later stage of Alzheimer's disease (AD), the pathological basis of this symptom is still unclear. In order to elucidate the neuropathological substrate of myoclonus in AD, we quantitatively assessed neuronal density and volume, with a discrimination between small and large neuro...
journal_title:Dementia and geriatric cognitive disorders
pub_type: 杂志文章
doi:10.1159/000017106
更新日期:1999-03-01 00:00:00
abstract:BACKGROUND/AIMS:To explore the presenting and early symptoms of dementia with Lewy bodies (DLB). METHOD:Patients with mild dementia fulfilling diagnostic criteria for DLB (n = 61) and Alzheimer's disease (AD) (n = 109) were recruited from outpatient dementia clinics in western Norway. At diagnosis, caregivers were ask...
journal_title:Dementia and geriatric cognitive disorders
pub_type: 杂志文章
doi:10.1159/000333072
更新日期:2011-01-01 00:00:00
abstract:BACKGROUND/AIMS:Increased cerebrospinal fluid (CSF) tau, decreased CSF amyloid-beta42 (Abeta42) and the apolipoprotein E gene (APOE) epsilon4 allele predict progression from mild cognitive impairment (MCI) to Alzheimer's disease (AD). Here, we investigated these markers to assess their predictive value and influence on...
journal_title:Dementia and geriatric cognitive disorders
pub_type: 杂志文章
doi:10.1159/000216841
更新日期:2009-01-01 00:00:00
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journal_title:Dementia and geriatric cognitive disorders
pub_type: 杂志文章
doi:10.1159/000264632
更新日期:2010-01-01 00:00:00