In recent years, epidemiologists have given increased attention to cognition, especially to
the dementing illnesses that occur in old age. Central to this study is the measurement of …

This paper introduces a methodological approach to the dynamics of cognitively normal (ie,
successful) aging compared with aging accompanied by different types of cognitive …

Choosing the measure of cognition in an epidemiologic study investigating cognitive
changes over time is a challenging question. A powerful measure must be able to detect …

The nature and extent of possible age-related changes in cognitive function have primarily
been examined in nonrandom samples, and have not been well described in population …

Background: Research into the pathophysiology of age-associated cognitive function and
decline requires a valid estimate of cognitive function. However, this estimation can be …

Epidemiologists are making increasing use of measures of cognitive function, both in studies
of dementing illnesses (1-6) as well as broader population-based studies of the health and …

The effects on mortality of cognitive impairment and 3-year declines in cognitive function
were examined among community-dwelling adults aged 68 years or more. Data were taken …

PURPOSE: This study examines the association between socioeconomic status and
cognitive decline in a community-based cohort of well-functioning older adults and seeks to …

Background Research into ageing-related pathology relies not only on exploration of
disease aetiology, but also a clear understanding of the normal ageing process. The present …

In a community population of persons over the age of 65, cognitive function was assessed
using brief performance tests on two occasions 3 years apart. Those with fewer years of …