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Author
R.A. Kievit
H. van Rooijen
J.M. Wicherts
L.J. Waldorp
K.-J. Kan
H.S. Scholte
D. Borsboom
Year
2012
Title
Intelligence and the brain: a model-based approach
Journal
Cognitive Neuroscience
Volume | Issue number
3 | 2
Pages (from-to)
89-97
Document type
Article
Faculty
Faculty of Social and Behavioural Sciences (FMG)
Institute
Psychology Research Institute (PsyRes)
Abstract
Various biological correlates of general intelligence (g) have been reported. Despite this, however, the relationship between neurological measurements and g is not fully clear. We use structural equation modeling to model the relationship between behavioral Wechsler Adult Intelligence Scale (WAIS) estimates of g and neurological measurements (voxel-based morphometry and diffusion tensor imaging of eight regions of interest). We discuss psychometric models that explicate the relationship between g and the brain in a manner in line with the scientific study of g. Fitting the proposed models to the data, we find that a MIMIC model (for multiple indicators, multiple causes), where the contributions of different brain regions to a unidimensional g are estimated separately, provides the best fit against the data.
URL
go to publisher's site
Language
English
Permalink
http://hdl.handle.net/11245/1.380551

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