Cognitive reserve and network efficiency as compensatory mechanisms of the effect of aging on phonemic fluency.

ABSTRACT: Compensation in cognitive aging is a topic of recent interest. However, factors contributing to cognitive compensation in functions such as phonemic fluency (PF) are not completely understood. Using cross-sectional data, we investigated cognitive reserve (CR) and network efficiency in young (32-58 years) versus old (59-84 years) individuals with high versus low performance in PF. ANCOVA was used to investigate the interaction between CR, age, and performance in PF. Random forest and graph theory analyses were conducted to study the contribution of cognition to PF and efficiency measures, respectively. Higher CR increased performance in PF and reduced age-related differences in PF. A slightly higher number of cognitive functions contributed to performance in high CR groups. The networks wer

SUBMITTER: Gonzalez-Burgos L 

PROVIDER: S-EPMC7746387 | biostudies-literature | 2020 Nov

REPOSITORIES: biostudies-literature