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  1. Article: Can an 18-point clock-drawing scoring system predict dementia in elderly individuals with mild cognitive impairment?

    Babins, Lennie / Slater, Marie-Eve / Whitehead, Victor / Chertkow, Howard

    Journal of clinical and experimental neuropsychology

    2008  Volume 30, Issue 2, Page(s) 173–186

    Abstract: The purpose of this study was to develop a clock-drawing scoring system better suited to detecting possible early markers of dementia in individuals with mild cognitive impairment (MCI). We modified the scoring system of Freedman et al. (1994), in which ... ...

    Abstract The purpose of this study was to develop a clock-drawing scoring system better suited to detecting possible early markers of dementia in individuals with mild cognitive impairment (MCI). We modified the scoring system of Freedman et al. (1994), in which the major components are integrity of the circle, placement and size of the hands, and placement and sequence of the numbers. We rescored the clock-drawing test using a novel 18-point scoring system, which emphasizes hand elements-number of hands, direction indicated, and size differences. We retrospectively assessed 123 individuals (ages 58-88 years) selected from the Memory Clinic at the Jewish General Hospital in Montreal. These consisted of 21 normal elderly individuals (NORM group), 41 participants with mild cognitive impairment who did not develop dementia on follow-up visits (MCI-NP), 41 participants with mild cognitive impairment who became demented after a 48-month follow-up (MCI-D), and 20 participants diagnosed with Alzheimer's disease (AD). On the 18-point system, the MCI-NP and the MCI-D did not show any difference on overall total score (p = .166), However, using Pearson chi-squares to examine the within-categories effects comparing the mildly cognitively impaired groups (MCI-NP and MCI-D), there were three significant hand items that appear to be possible early markers of progression to dementia. The clock has two hands (p = .043), hour hand is towards correct number (p = .023), and size difference of the hands is respected (p = .004), all showed significant differences between progressors and nonprogressors. The 18-point clock-drawing scoring system may have advantages in better indicating MCI individuals more likely to progress to dementia.
    MeSH term(s) Aged ; Aged, 80 and over ; Analysis of Variance ; Chi-Square Distribution ; Cognition Disorders/complications ; Dementia/diagnosis ; Dementia/etiology ; Disease Progression ; Female ; Geriatric Assessment ; Humans ; Male ; Mental Status Schedule ; Middle Aged ; Neuropsychological Tests ; Predictive Value of Tests ; Psychometrics ; Retrospective Studies
    Language English
    Publishing date 2008-02
    Publishing country England
    Document type Journal Article
    ZDB-ID 605982-x
    ISSN 1744-411X ; 1380-3395 ; 0168-8634
    ISSN (online) 1744-411X
    ISSN 1380-3395 ; 0168-8634
    DOI 10.1080/13803390701336411
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article: ARAC--The Montreal Jewish General Hospital Alzheimer Risk Assessment Clinic.

    Schipper, Hyman M / Liberman, Adrienne / Kelner, Nora / Babins, Lennie / Fried, Lynda / Bilbul, Melanie / Goodman, Rachel

    The Canadian journal of neurological sciences. Le journal canadien des sciences neurologiques

    2011  Volume 38, Issue 4, Page(s) 600–611

    Abstract: Introduction: In parallel with robust efforts world-wide to develop effective neuroprotection for established disease, resources are being mobilized to delineate risk factors and implement preventive measures in a concerted effort to forestall the ... ...

    Abstract Introduction: In parallel with robust efforts world-wide to develop effective neuroprotection for established disease, resources are being mobilized to delineate risk factors and implement preventive measures in a concerted effort to forestall the anticipated Alzheimer disease (AD) epidemic. A review of heritable and 'acquired' dementia risk factors, many operating at midlife, is presented in a companion paper.
    Objectives: In 2009, an Alzheimer Risk Assessment Clinic (ARAC) was established at the Jewish General Hospital (Montreal) to address the concerns increasingly being voiced by active middle-aged individuals at risk for AD. A positive family history of AD and/or perceived changes in personal cognitive function (predominantly short-term memory) are main reasons for referral. The primary objectives of ARAC are to (i) ascertain, inform and mitigate the risks of developing AD in cognitively-healthy persons aged 40-65 based on best available medical and epidemiological evidence, (ii) conduct scientific research on midlife dementia risk and prevention in this population and (iii) provide instruction in dementia risk assessment and management to health professionals, clinical/research fellows, medical residents and students. ARAC infrastructure, evaluation protocol, risk profile classification scheme, interventions, knowledge dissemination program, case vignettes, and seminal research projects are described.
    Conclusions: It is hoped that ARAC and similar initiatives will help prevent or delay dementia by innovating effective interventions based on increasingly nuanced estimation of modifiable AD risk in presymptomatic persons.
    MeSH term(s) Adult ; Aged ; Alzheimer Disease/diagnosis ; Alzheimer Disease/epidemiology ; Alzheimer Disease/etiology ; Canada/epidemiology ; Hospitals, General ; Hospitals, Proprietary ; Humans ; Middle Aged ; Neuropsychological Tests ; Risk Assessment/methods ; Risk Factors ; Surveys and Questionnaires
    Language English
    Publishing date 2011-03-28
    Publishing country England
    Document type Journal Article ; Research Support, Non-U.S. Gov't ; Review
    ZDB-ID 197622-9
    ISSN 0317-1671
    ISSN 0317-1671
    DOI 10.1017/s0317167100012142
    Database MEDical Literature Analysis and Retrieval System OnLINE

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    Zs.A 1203: Show issues Location:
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  3. Article ; Online: The profile of executive functioning in amnestic mild cognitive impairment: disproportionate deficits in inhibitory control.

    Johns, Erin K / Phillips, Natalie A / Belleville, Sylvie / Goupil, Diane / Babins, Lennie / Kelner, Nora / Ska, Bernadette / Gilbert, Brigitte / Massoud, Fadi / de Boysson, Chloé / Duncan, Hilary D / Chertkow, Howard

    Journal of the International Neuropsychological Society : JINS

    2012  Volume 18, Issue 3, Page(s) 541–555

    Abstract: Amnestic mild cognitive impairment (aMCI) represents a group of individuals who are highly likely to develop Alzheimer's disease (AD). Although aMCI is typically conceptualized as involving predominantly deficits in episodic memory, recent studies have ... ...

    Abstract Amnestic mild cognitive impairment (aMCI) represents a group of individuals who are highly likely to develop Alzheimer's disease (AD). Although aMCI is typically conceptualized as involving predominantly deficits in episodic memory, recent studies have demonstrated that deficits in executive functioning may also be present, and thorough categorization of cognitive functioning in MCI may improve early diagnosis and treatment of AD. We first provide an extensive review of neuropsychology studies that examined executive functioning in MCI. We then present data on executive functioning across multiple sub-domains (divided attention, working memory, inhibitory control, verbal fluency, and planning) in 40 aMCI patients (single or multiple domain) and 32 normal elderly controls (NECs). MCI patients performed significantly worse than NECs in all 5 sub-domains, and there was impairment (>1.0 SD below the mean of NECs) in all sub-domains. Impairment on each test was frequent, with 100% of MCI patients exhibiting a deficit in at least one sub-domain of executive functioning. Inhibitory control was the most frequently and severely impaired. These results indicate that executive dysfunction in multiple sub-domains is common in aMCI and highlights the importance of a comprehensive neuropsychological evaluation for fully characterizing the nature and extent of cognitive deficits in MCI.
    MeSH term(s) Aged ; Aged, 80 and over ; Cognition Disorders/etiology ; Cognition Disorders/psychology ; Cognitive Dysfunction/complications ; Executive Function/physiology ; Female ; Humans ; Inhibition (Psychology) ; Male ; Middle Aged ; Neuropsychological Tests
    Language English
    Publishing date 2012-05
    Publishing country England
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 1230632-0
    ISSN 1469-7661 ; 1355-6177
    ISSN (online) 1469-7661
    ISSN 1355-6177
    DOI 10.1017/S1355617712000069
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  4. Article: Cognitive estimation impairment in Alzheimer disease and mild cognitive impairment.

    Levinoff, Elise J / Phillips, Natalie A / Verret, Louis / Babins, Lennie / Kelner, Nora / Akerib, Vivian / Chertkow, Howard

    Neuropsychology

    2006  Volume 20, Issue 1, Page(s) 123–132

    Abstract: Intact executive functioning is believed to be required for performance on tasks requiring cognitive estimations. This study used a revised version of a cognitive estimations test (CET) to investigate whether patients with Alzheimer's disease (AD) and ... ...

    Abstract Intact executive functioning is believed to be required for performance on tasks requiring cognitive estimations. This study used a revised version of a cognitive estimations test (CET) to investigate whether patients with Alzheimer's disease (AD) and mild cognitive impairment (MCI) were impaired on the CET compared with normal elderly controls (NECs). Neuropsychological tests were administered to determine the relationship between CET performance and other cognitive domains. AD patients displayed impaired CET performance when compared with NECs but MCI patients did not. Negative correlations between tests of working memory (WM) and semantic memory and the CET were found in NECs and AD patients, indicating that these cognitive domains were important for CET performance. Regression analysis suggests that AD patients were unable to maintain semantic information in WM to perform the task. The authors conclude that AD patients display deficits in working memory, semantic memory, and executive function, which are required for adequate CET performance.
    MeSH term(s) Aged ; Alzheimer Disease/diagnosis ; Alzheimer Disease/psychology ; Attention ; Cognition Disorders/diagnosis ; Cognition Disorders/psychology ; Cohort Studies ; Concept Formation ; Female ; Humans ; Male ; Memory, Short-Term ; Middle Aged ; Neuropsychological Tests/statistics & numerical data ; Pilot Projects ; Problem Solving ; Psychometrics ; Reference Values ; Reproducibility of Results ; Verbal Learning
    Language English
    Publishing date 2006-01
    Publishing country United States
    Document type Journal Article
    ZDB-ID 1042412-x
    ISSN 1931-1559 ; 0894-4105
    ISSN (online) 1931-1559
    ISSN 0894-4105
    DOI 10.1037/0894-4105.20.1.123
    Database MEDical Literature Analysis and Retrieval System OnLINE

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    In stock of ZB MED Cologne/Königswinter

    Zs.A 3002: Show issues Location:
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  5. Article ; Online: Executive functions in frontotemporal dementia and Lewy body dementia.

    Johns, Erin K / Phillips, Natalie A / Belleville, Sylvie / Goupil, Diane / Babins, Lennie / Kelner, Nora / Ska, Bernadette / Gilbert, Brigitte / Inglis, Gary / Panisset, Michel / de Boysson, Chloé / Chertkow, Howard

    Neuropsychology

    2009  Volume 23, Issue 6, Page(s) 765–777

    Abstract: Diagnosis of different types of dementia is often based on clinical symptomatology rather than underlying pathology; therefore, accurate diagnosis depends on a thorough description of cognitive functioning in different dementias. Furthermore, direct ... ...

    Abstract Diagnosis of different types of dementia is often based on clinical symptomatology rather than underlying pathology; therefore, accurate diagnosis depends on a thorough description of cognitive functioning in different dementias. Furthermore, direct comparison of cognitive functions between different types of dementia is necessary for differential diagnosis. Executive dysfunction is common in several types of dementia, including frontotemporal dementia (FTD) and Lewy body dementia (LBD); however, FTD and LBD patients have never been directly compared on measures of executive functioning. The authors compared the performance of 17 FTD and 15 LBD patients on 6 measures of executive functioning in terms of statistical group differences, mean severity of clinical impairment in comparison to normal controls, and frequency of impairment. Results indicated a remarkably similar pattern of performance across all areas examined in terms of mean performance, as well as degree and frequency of impairment. Only the Stroop test produced results that could potentially differentiate the patient groups. These findings suggest that both FTD and LBD should be considered disorders involving executive dysfunction.
    MeSH term(s) Aged ; Analysis of Variance ; Cognition Disorders/etiology ; Executive Function/physiology ; Female ; Frontotemporal Dementia/complications ; Humans ; Inhibition (Psychology) ; Lewy Body Disease/complications ; Male ; Memory, Short-Term/physiology ; Mental Status Schedule ; Middle Aged ; Neuropsychological Tests ; Verbal Behavior/physiology
    Language English
    Publishing date 2009-11
    Publishing country United States
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 1042412-x
    ISSN 1931-1559 ; 0894-4105
    ISSN (online) 1931-1559
    ISSN 0894-4105
    DOI 10.1037/a0016792
    Database MEDical Literature Analysis and Retrieval System OnLINE

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    In stock of ZB MED Cologne/Königswinter

    Zs.A 3002: Show issues Location:
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