Factors that positively or negatively mediate the effects of age on working memory across the adult life span
Por:
Cansino S., Torres-Trejo F., Estrada-Manilla C., Martínez-Galindo J.G., Hernández-Ramos E., Ayala-Hernández M., Gómez-Fernández T., Ramírez-González M.D., Ruiz-Velasco S.
Publicada:
1 jun 2018
Ahead of Print:
1 ene 2018
Resumen:
Working memory abilities significantly decrease with advancing age;
hence, the search for factors that may increase or mitigate this decline
is critical. Several factors have been identified that influence working
memory; however, their effects have been mainly assessed separately and
rarely together with other factors in the same sample. We examined 120
variables to search for factors that jointly act as mediators of working
memory decay across the adult life span. A sample of 1652 healthy adults
was assessed in spatial and verbal working memory domains. Structural
equation modeling analyses were conducted to search for potential
mediators that intervened between age and working memory. Only 14 and 10
variables reliably mediated spatial and verbal working memory,
respectively. Factors from several domains remained in the models, such
as individual characteristics, physiological traits, consumption habits,
and regular activities. These factors are sufficiently powerful to
influence working memory decline when they jointly interact, as in
everyday living.
Filiaciones:
Cansino S.:
Laboratory of NeuroCognition, Faculty of Psychology, National Autonomous University of Mexico, Mexico City, Mexico
Torres-Trejo F.:
Laboratory of NeuroCognition, Faculty of Psychology, National Autonomous University of Mexico, Mexico City, Mexico
Estrada-Manilla C.:
Laboratory of NeuroCognition, Faculty of Psychology, National Autonomous University of Mexico, Mexico City, Mexico
Martínez-Galindo J.G.:
Laboratory of NeuroCognition, Faculty of Psychology, National Autonomous University of Mexico, Mexico City, Mexico
Hernández-Ramos E.:
Laboratory of NeuroCognition, Faculty of Psychology, National Autonomous University of Mexico, Mexico City, Mexico
Ayala-Hernández M.:
Laboratory of NeuroCognition, Faculty of Psychology, National Autonomous University of Mexico, Mexico City, Mexico
Gómez-Fernández T.:
Laboratory of NeuroCognition, Faculty of Psychology, National Autonomous University of Mexico, Mexico City, Mexico
Ramírez-González M.D.:
Department of Pharmacology, School of Medicine, National Autonomous University of Mexico, Mexico City, Mexico
Ruiz-Velasco S.:
Department of Probability and Statistics, Applied Mathematics and Systems Research Institute, National Autonomous University of Mexico, Mexico City, Mexico
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