Examinando por Autor "Colom, Roberto"

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  • Miniatura
    Publicación
    Brain-intelligence relationships across childhood and adolescence: A latent-variable approach
    (Elsevier, 2018-05) Román,Francisco J.; Morillo Cuadrado, Daniel Vicente; Estrada, Eduardo; Escorial, Sergio; Karama, Sherif; Colom, Roberto; Morillo Cuadrado, Daniel Vicente
    The analysis of the relationships between cortical and intellectual development is a complex matter. Greater brain plasticity in brighter individuals has been suggested, but the associations between developmental cortical changes and variations in the general factor of intelligence (g) across time at the latent level have not been addressed. For filling this gap, here we relate longitudinal changes in g with developmental changes in cortical thickness and cortical surface area. One hundred and thirty-two children and adolescents representative of the population from the Pediatric MRI Data Repository completed the Wechsler Abbreviated Scale of Intelligence in three time points and MRI scans were also obtained (mean inter-registration interval ≈ 2 years, age range = 6.1 to 21.3 years). Longitudinal latent variable analyses revealed an increase in g scores amounting to a full standard deviation on average. Intelligence differences estimated at the latent level were significantly correlated related with cortical changes. Older individuals showed greater decrease in cortical values along with smaller increase in intelligence. Furthermore, thickness preservation in brighter individuals was observed at early adolescence (10–14 years).
  • Miniatura
    Publicación
    Can we reliably measure the general factor of intelligence (g) through commercial video games? Yes, we can!
    (Elsevier, 2015-11) Quiroga, M. Ángeles; Escorial, Sergio; Román, Francisco J.; Morillo Cuadrado, Daniel Vicente; Jarabo, Andrea; Privado, Jesús; Hernández, Miguel; Gallego, Borja; Colom, Roberto; Morillo Cuadrado, Daniel Vicente
    Here we show, for the very first time, that commercial video games can be used to reliably measure individual differences in general intelligence (g). One hundred and eighty eight university undergraduates took part in the study. They played twelve video games under strict supervision in the laboratory and completed eleven intelligence tests. Several factor models were tested for answering the question of whether or not video games and intelligence tests do measure the same underlying high-order latent factor. The final model revealed a very high relationship between the high-order latent factors representing video game and intelligence performance (r = .93). General performance scores derived from video games and intelligence tests showed a correlation value of .963 (R2adjusted). Therefore, performance on some video games captures a latent factor common to the variance shared by cognitive performance assessed by standard ability tests.