scispace - formally typeset
Open AccessJournal ArticleDOI

Selective review of cognitive aging

TLDR
Questions related to age, how many distinct influences are contributing to the relations between age and cognitive functioning, do the differences between people increase with advancing age, and what is responsible for the discrepancies between cross-sectional and longitudinal age comparisons of cognitive functioning are reviewed.
Abstract
Research concerned with relations between adult age and cognitive functioning is briefly reviewed. The coverage is necessarily selective, and is organized in terms of five major questions. These are what abilities are related to age, how many distinct influences are contributing to the relations between age and cognitive functioning, do the differences between people increase with advancing age, what is responsible for the discrepancies between cross-sectional and longitudinal age comparisons of cognitive functioning, and what methods can be used to identify causes of age-related influences on cognition. Although definitive answers are not yet possible, quite a bit of information relevant to the questions is now available. Moreover, the existing information has implications for the design, analysis, and interpretation of cognitive and neuropsychological research concerned with aging.

read more

Citations
More filters
Journal ArticleDOI

Normal Cognitive Aging

TL;DR: The neurocognitive changes observed in normal aging are described, followed by a description of the structural and functional alterations seen in aging brains.
Journal ArticleDOI

The Impact of Age on Cognition

TL;DR: The most important changes in cognition with normal aging are declines in performance on cognitive tasks that require one to quickly process or transform information to make a decision, including measures of speed of processing, working memory and executive cognitive function.
Journal ArticleDOI

The Alzheimer's disease mitochondrial cascade hypothesis: progress and perspectives.

TL;DR: The mitochondrial cascade hypothesis unequivocally states in sporadic, late-onset AD, mitochondrial function affects amyloid precursor protein (APP) expression, APP processing, or beta amyloids (Aβ) accumulation and argues if an amyloidal cascade truly exists, mitochondria function triggers it.
Journal ArticleDOI

Association of Age-Related Hearing Loss With Cognitive Function, Cognitive Impairment, and Dementia: A Systematic Review and Meta-analysis.

TL;DR: Age-related hearing loss is a possible biomarker and modifiable risk factor for cognitive decline, cognitive impairment, and dementia and a small but significant association was found within all domains of cognitive function.
References
More filters
Journal ArticleDOI

The moderator–mediator variable distinction in social psychological research: Conceptual, strategic, and statistical considerations.

TL;DR: This article seeks to make theorists and researchers aware of the importance of not using the terms moderator and mediator interchangeably by carefully elaborating the many ways in which moderators and mediators differ, and delineates the conceptual and strategic implications of making use of such distinctions with regard to a wide range of phenomena.
Journal ArticleDOI

When does age-related cognitive decline begin?

TL;DR: Results from three methods of estimating retest effects in this project converge on a conclusion that some aspects of age-related cognitive decline begin in healthy educated adults when they are in their 20s and 30s.
Journal ArticleDOI

Executive Functioning as a Potential Mediator of Age-Related Cognitive Decline in Normal Adults.

TL;DR: Although age-related effects on various cognitive abilities were substantially reduced after statistical control of the variance in measures hypothesized to represent executive functioning, there was only weak evidence for the existence of distinct constructs corresponding to executive functioning or to aspects of executive control concerned with inhibition, updating, or time sharing.
Journal ArticleDOI

Individual differences in rates of change in cognitive abilities of older persons

TL;DR: The results suggest that change in cognitive function in old age primarily reflects person-specific factors rather than an inevitable developmental process.
Related Papers (5)