Basic forms of cognitive plasticity extended into the oldest-old: Retest learning, age, and cognitive functioning

Article Abstract:

A self-guided retest training paradigm involving psychometric abilities was used to investigate whether performance improvement with training is possible for older adults in their sixties and seventies and whether high levels of cognitive functioning provide an advantage in moderating these hypothesized age-related declines in plasticity. The oldest-old showed substantial improvements in performance despite a decline in learning magnitude relative to the young-old.

United States, Science & research, Research, Psychometrics, Cognition in old age, Old age cognition

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A dynamic investigation of cognitive dedifferentiation with control for retest: Evidence from the Swiss interdisciplinary longitudinal study on the oldest old

Article Abstract:

The main objective of the study was to introduce and discuss the divariate dual change score model with retest effects to the cross-out and the category-fruit tasks. It is believed that BDCSM with the estimation of retest effects is a useful analytical tool for examination of hypothesis of dedifferentiation of cognitive abilities in old and very old age, as well as other hypothesis implicitly or explicitly involving dynamic relations between its constituents.

Cognition

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Age effects in coding tasks: Componential analysis and test of the sensory deficit hypothesis

Article Abstract:

Multiple forms of a symbol-digit substitution task were used to provide a componential analysis of age differences in coding task performance. The study illustrates the utility of componential analysis and offers direct support for the hypothesis that sensory deficits affect performance on tasks used to assess intelligence.

Cognition disorders, Cognitive disorders, Age (Psychology), Age differences (Psychology), Task analysis

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