1. Conscientiousness associated with efficiency of the salience/ventral attention network: Replication in three samples using individualized parcellation
- Author
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Tyler A. Sassenberg, Philip C. Burton, Laetitia Mwilambwe-Tshilobo, Rex E. Jung, Aldo Rustichini, R. Nathan Spreng, and Colin G. DeYoung
- Subjects
Conscientiousness ,Individualized parcellation ,Ventral attention network ,Salience network ,Efficiency ,Neurosciences. Biological psychiatry. Neuropsychiatry ,RC321-571 - Abstract
Conscientiousness, and related constructs impulsivity and self-control, have been related to structural and functional properties of regions in the prefrontal cortex (PFC) and anterior insula. Network-based conceptions of brain function suggest that these regions belong to a single large-scale network, labeled the salience/ventral attention network (SVAN). The current study tested associations between conscientiousness and resting-state functional connectivity in this network using two community samples (N's = 244 and 239) and data from the Human Connectome Project (N = 1000). Individualized parcellation was used to improve functional localization accuracy and facilitate replication. Functional connectivity was measured using an index of network efficiency, a graph theoretical measure quantifying the capacity for parallel information transfer within a network. Efficiency of a set of parcels in the SVAN was significantly associated with conscientiousness in all samples. Findings are consistent with a theory of conscientiousness as a function of variation in neural networks underlying effective prioritization of goals.
- Published
- 2023
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