Processing speed and working memory are predicted by components of successful aging: a HUNT study.

Background: Research has demonstrated that cognitive heterogeneity occurs with aging both within and between individuals. The purpose of this study was to explore whether the cognitive heterogeneity in aging was related to the subgroups of successful and usual aging.

Method: Participants were a representative sample of normal older adults (n = 65, age range 70-89 years).

Subjective working memory predicts objective memory in cognitively normal aging: a HUNT study.

Background: Recent studies have shown that subjective memory is multi-, rather than uni-dimensional, in line with the results of objective memory tests. The purpose of this study was to investigate whether there is an association between aspects of memory measured by the subjective Meta-Memory Questionnaire (MMQ) and aspects of memory measured by the objective Wechsler Memory Scale-III (WMS-III) and Wechsler Adult Intelligence Scale-III (WAIS-III) tests in cognitively normal older adults.

Method: The study subjects (n = 106) were cognitively normal, were aged 57-89 years and had participated in the third wave of the North-Trøndelag Health survey (HUNT3).

Lifestyle predictors of successful aging: A 20-year prospective HUNT study.

Background: Lifestyle factors predicting successful aging as a unified concept or as separate components of successful aging are important for understanding healthy aging, interventions and preventions. The main objective was to investigate the effect of midlife predictors on subsequent successful aging 20 years later.

Materials And Methods: Data were from a population-based health survey, the Nord-Trøndelag Health Study (HUNT), with an average follow-up of 22.

Subjective working and declarative memory in dementia and normal aging.

Objective: Subjective memory complaints are common in both elderly individuals and patients with dementia. This study investigated the power of subjective memory, divided into declarative and working memory, to differentiate between patients with dementia and normal elderly individuals.

Method: Two groups of participants, patients with dementia (n = 117) and normal elderly individuals (n = 117), individually matched with regard to age, gender, and education.

Smoking and Obesity as Risk Factors in Frontotemporal Dementia and Alzheimer's Disease: The HUNT Study.

Background: Few studies have assessed smoking and obesity together as risk factors for frontotemporal dementia (FTD) and Alzheimer's disease (AD).

Objective: To study smoking and obesity as risk factors for FTD and AD.

Methods: Ninety patients with FTD and 654 patients with AD were compared with 116 cognitively healthy elderly individuals in a longitudinal design with 15-31 years between measurements of risk factors before the dementia diagnosis.

Anxiety and Depression as Risk Factors in Frontotemporal Dementia and Alzheimer's Disease: The HUNT Study.

Background: The roles of both anxiety and depression as risk factors for frontotemporal dementia (FTD) and Alzheimer's disease (AD) have not been previously investigated together.

Objective: To study anxiety and depression as independent risk factors for FTD and AD.

Methods: Eighty-four patients with FTD and 556 patients with AD were compared with 117 cognitively healthy (CH), elderly individuals.

Selective impact of disease on short-term and long-term components of self-reported memory: a population-based HUNT study.

Background: Subjective memory is commonly considered to be a unidimensional measure. However, theories of performance-based memory suggest that subjective memory could be divided into more than one dimension.

Objective: To divide subjective memory into theoretically related components of memory and explore the relationship to disease.

Prevalence and correlates of successful aging in a population-based sample of older adults: the HUNT study.

Background: The factors influencing successful aging (SA) are of great interest in an aging society. The aims of this study were to investigate the prevalence of SA, the relative importance across age of the three components used to define it (absence of disease and disability, high cognitive and physical function, and active engagement with life), and its correlates.

Methods: Data were extracted from the population-based cross-sectional Nord-Trøndelag Health Study (HUNT3 2006-2008).

A Confirmatory Factor Analytic Study of the Wechsler Memory Scale-III in an Elderly Norwegian Sample.

This study compared the factor structure of the translated Wechsler Memory Scale-III (WMS-III), which is the latest available version in Norway, with the original U.S. version.

Headache as a predictor for dementia: The HUNT Study.

Background: The impact of headache on dementia is largely unknown. This study examined the association between headache and dementia using data from a large population-based study.

Methods: This population-based study used data from the Nord-Trøndelag Health Surveys performed in 1995-1997 (HUNT2) and 2006-2008 (HUNT3).

Factor structure of the Norwegian version of the WAIS-III in a clinical sample: the arithmetic problem.

Confirmatory Factor Analyses (CFA) of the Wechsler Adult Intelligence Scale-III (WAIS-III) lend partial support to the four-factor model proposed in the test manual. However, the Arithmetic subtest has been especially difficult to allocate to one factor. Using the new Norwegian WAIS-III version, we tested factor models differing in the number of factors and in the placement of the Arithmetic subtest in a mixed clinical sample (n = 272).