Individualized Prediction of Reading Comprehension Ability Using Gray Matter Volume

Reading comprehension is a crucial reading skill for learning and putatively contains 2 key components: reading decoding and linguistic comprehension. Current understanding of the neural mechanism underlying these reading comprehension components is lacking, and whether and how neuroanatomical featu...

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Published in:Cerebral cortex (New York, N.Y. 1991) Vol. 28; no. 5; p. 1656
Main Authors: Cui, Zaixu, Su, Mengmeng, Li, Liangjie, Shu, Hua, Gong, Gaolang
Format: Journal Article
Language:English
Published: United States 01.05.2018
Subjects:
Comprehension - physiology
Connectome
Datasets as Topic - statistics & numerical data
Female
Gray Matter - diagnostic imaging
Gray Matter - physiology
Humans
Individuality
Magnetic Resonance Imaging
Male
Predictive Value of Tests
Reading
Sex Characteristics
ISSN:1460-2199, 1460-2199
Online Access:Get more information
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Summary:Reading comprehension is a crucial reading skill for learning and putatively contains 2 key components: reading decoding and linguistic comprehension. Current understanding of the neural mechanism underlying these reading comprehension components is lacking, and whether and how neuroanatomical features can be used to predict these 2 skills remain largely unexplored. In the present study, we analyzed a large sample from the Human Connectome Project (HCP) dataset and successfully built multivariate predictive models for these 2 skills using whole-brain gray matter volume features. The results showed that these models effectively captured individual differences in these 2 skills and were able to significantly predict these components of reading comprehension for unseen individuals. The strict cross-validation using the HCP cohort and another independent cohort of children demonstrated the model generalizability. The identified gray matter regions contributing to the skill prediction consisted of a wide range of regions covering the putative reading, cerebellum, and subcortical systems. Interestingly, there were gender differences in the predictive models, with the female-specific model overestimating the males' abilities. Moreover, the identified contributing gray matter regions for the female-specific and male-specific models exhibited considerable differences, supporting a gender-dependent neuroanatomical substrate for reading comprehension.
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ISSN:1460-2199
1460-2199
DOI:10.1093/cercor/bhx061