Mutualistic Coupling Between Vocabulary and Reasoning Supports Cognitive Development During Late Adolescence and Early Adulthood.
Neuroscience in Psychiatry Network,
Dolan, Raymond J
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Kievit, R., Lindenberger, U., Goodyer, I., Jones, P., Fonagy, P., Bullmore, E., Neuroscience in Psychiatry Network,, & et al. (2017). Mutualistic Coupling Between Vocabulary and Reasoning Supports Cognitive Development During Late Adolescence and Early Adulthood.. Psychological Science, 28 (10), 1419-1431. https://doi.org/10.1177/0956797617710785
One of the most replicable findings in psychology is the positive manifold: the observation that individual differences in cognitive abilities are universally positively correlated. Investigating the developmental origin of the positive manifold is crucial to understanding it. In a large longitudinal cohort of adolescents and young adults ( N = 785; n = 566 across two waves, mean interval between waves = 1.48 years; age range = 14-25 years), we examined developmental changes in two core cognitive domains, fluid reasoning and vocabulary. We used bivariate latent change score models to compare three leading accounts of cognitive development: g-factor theory, investment theory, and mutualism. We showed that a mutualism model, which proposes that basic cognitive abilities directly and positively interact during development, provides the best account of developmental changes. We found that individuals with higher scores in vocabulary showed greater gains in matrix reasoning and vice versa. These dynamic coupling pathways are not predicted by other accounts and provide a novel mechanistic window into cognitive development.
cognitive development, fluid reasoning, longitudinal modeling, mutualism, open data, vocabulary
The Neuroscience in Psychiatry Network is supported by a strategic award from the Wellcome Trust to the University of Cambridge and University College London (095844/Z/11/Z). R. A. Kievit is supported by the Wellcome Trust (Grant No. 107392/Z/15/Z) and the UK Medical Research Council (MC-A060-5PR61). P. Fonagy is funded by a National Institute for Health Research (NIHR) Senior Investigator Award (NF-SI-0514-10157). P. Fonagy was in part supported by the NIHR Collaboration for Leadership in Applied Health Research and Care (CLAHRC) North Thames at Barts Health National Health Service (NHS) Trust. The views expressed are those of the authors and not necessarily those of the NHS, the NIHR, or the UK Department of Health.
Wellcome Trust (107392/Z/15/Z)
Wellcome Trust (095844/Z/11/Z)
Medical Research Council (MC_UP_1401/1)
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External DOI: https://doi.org/10.1177/0956797617710785
This record's URL: https://www.repository.cam.ac.uk/handle/1810/273712
Attribution 4.0 International
Licence URL: http://creativecommons.org/licenses/by/4.0/
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