The past two centuries have witnessed an unprecedented rise in human life expectancy.
Sustaining longer lives with reduced periods of disability will require an understanding of the …

Intelligence—the ability to learn, reason and solve problems—is at the forefront of
behavioural genetic research. Intelligence is highly heritable and predicts important …

For more than 50 years, psychologists, gerontologists, and, more recently, neuroscientists
have considered the possibility of successful aging. How to define successful aging remains …

Hearing loss with increasing age adversely affects the ability to understand speech, an effect
that results partly from reduced audibility. The aims of this study were to establish whether …

Clear associations of sleep, cognitive performance, and behavioral problems have been
demonstrated in meta-analyses of studies in adults. This meta-analysis is the first to …

Recent evidence suggests a positive impact of bilingualism on cognition, including later
onset of dementia. However, monolinguals and bilinguals might have different baseline …

Objective: Examine age group effects and sex differences by applying a comprehensive
computerized battery of identical behavioral measures linked to brain systems in youths that …

The original Lothian Birth Cohorts of 1921 (LBC1921) and 1936 (LBC1936) were designed
as follow-up studies to the Scottish Mental Surveys of 1932 (SMS1932) and 1947 …

This cohort profile describes the origins, tracing, recruitment, testing and follow-up of the
University of Edinburgh-based Lothian Birth Cohorts of 1921 (LBC1921; N= 550) and 1936 …

Personality and Individual Differences is a state-of-the-art undergraduate textbook that
covers the salient and recent literature on personality, intellectual ability, motivation and …