Abstract
Working memory plays a crucial role in our daily lives, and brain imaging has been used to predict working memory performance. Here, we present an improved connectome-based predictive modeling approach for building a predictive model of individual working memory performance from whole-brain functional connectivity. The model was built using n-back task-based fMRI and resting-state fMRI data from the Human Connectome Project. Compared to prior models, our model was more interpretable, demonstrated a closer connection to the known anatomical and functional network. The model also demonstrates strong generalization on nine other cognitive behaviors from the HCP database and can well predict the working memory performance of healthy individuals in external datasets. By comparing the differences in prediction effects of different brain networks and anatomical feature analysis on n-back tasks, we found the essential role of some networks in differentiating between high and low working memory loads conditions.
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Data availability
The data that support the findings of this study are openly available in Human Connectome Project S1200 release at [http://www.humanconnectome.org/] and OpenfMRI database at [https://www.openfmri.org/] (accession number is ds000115).
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Funding
This research was supported by grants from NSFC (62176045), by Sichuan Science and Technology Program (2023YFS0191),111 project (B12027), and the Fundamental Research Funds for the Central Universities (ZYGX2020FRJH014).
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HY wrote the main manuscript text. All authors reviewed the manuscript and made revisions to the manuscript.
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Yang, H., Zhang, J., Jin, Z. et al. Using modular connectome-based predictive modeling to reveal brain-behavior relationships of individual differences in working memory. Brain Struct Funct 228, 1479–1492 (2023). https://doi.org/10.1007/s00429-023-02666-3
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DOI: https://doi.org/10.1007/s00429-023-02666-3