Verbal intelligence and leisure activities are associated with cognitive performance and resting-state electroencephalogram

Ferrari-Díaz, Martina and Bravo-Chávez, Ricardo Iván and Silva-Pereyra, Juan and Fernández, Thalía and García-Peña, Carmen and Rodríguez-Camacho, Mario (2022) Verbal intelligence and leisure activities are associated with cognitive performance and resting-state electroencephalogram. Frontiers in Aging Neuroscience, 14. ISSN 1663-4365

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Abstract

Cognitive reserve (CR) is the adaptability of cognitive processes that helps to explain differences in the susceptibility of cognitive or daily functions to resist the onslaught of brain-related injury or the normal aging process. The underlying brain mechanisms of CR studied through electroencephalogram (EEG) are scarcely reported. To our knowledge, few studies have considered a combination of exclusively dynamic proxy measures of CR. We evaluated the association of CR with cognition and resting-state EEG in older adults using three of the most frequently used dynamic proxy measures of CR: verbal intelligence, leisure activities, and physical activities. Multiple linear regression analyses with the CR proxies as independent variables and cognitive performance and the absolute power (AP) on six resting-state EEG components (beta, alpha1, alpha2, gamma, theta, and delta) as outcomes were performed. Eighty-eight healthy older adults aged 60–77 (58 female) were selected from previous study data. Verbal intelligence was a significant positive predictor of perceptual organization, working memory, processing speed, executive functions, and central delta power. Leisure activities were a significant positive predictor of posterior alpha2 power. The dynamic proxy variables of CR are differently associated with cognitive performance and resting-state EEG. Implementing leisure activities and tasks to increase vocabulary may promote better cognitive performance through compensation or neural efficiency mechanisms.

Item Type: Article
Subjects: Research Scholar Guardian > Medical Science
Depositing User: Unnamed user with email support@scholarguardian.com
Date Deposited: 07 Oct 2023 09:26
Last Modified: 07 Oct 2023 09:26
URI: http://science.sdpublishers.org/id/eprint/1436

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