Academic Journal
Earlier adolescent substance use onset predicts stronger connectivity between reward and cognitive control brain networks
| Title: | Earlier adolescent substance use onset predicts stronger connectivity between reward and cognitive control brain networks |
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| Authors: | David G. Weissman, Roberta A. Schriber, Catherine Fassbender, Olivia Atherton, Cynthia Krafft, Richard W. Robins, Paul D. Hastings, Amanda E. Guyer |
| Source: | Developmental Cognitive Neuroscience, Vol 16, Iss C, Pp 121-129 (2015) |
| Publisher Information: | Elsevier, 2015. |
| Publication Year: | 2015 |
| Collection: | LCC:Neurophysiology and neuropsychology |
| Subject Terms: | Adolescence, fMRI, Striatum, Cognitive regulation, Resting state, Neurophysiology and neuropsychology, QP351-495 |
| More Details: | Background: Early adolescent onset of substance use is a robust predictor of future substance use disorders. We examined the relation between age of substance use initiation and resting state functional connectivity (RSFC) of the core reward processing (nucleus accumbens; NAcc) to cognitive control (prefrontal cortex; PFC) brain networks. Method: Adolescents in a longitudinal study of Mexican-origin youth reported their substance use annually from ages 10 to 16 years. At age 16, 69 adolescents participated in a resting state functional magnetic resonance imaging scan. Seed-based correlational analyses were conducted using regions of interest in bilateral NAcc. Results: The earlier that adolescents initiated substance use, the stronger the connectivity between bilateral NAcc and right dorsolateral PFC, right dorsomedial PFC, right pre-supplementary motor area, right inferior parietal lobule, and left medial temporal gyrus. Discussion: The regions that demonstrated significant positive linear relationships between the number of adolescent years using substances and connectivity with NAcc are nodes in the right frontoparietal network, which is central to cognitive control. The coupling of reward and cognitive control networks may be a mechanism through which earlier onset of substance use is related to brain function over time, a trajectory that may be implicated in subsequent substance use disorders. |
| Document Type: | article |
| File Description: | electronic resource |
| Language: | English |
| ISSN: | 1878-9293 1878-9307 |
| Relation: | http://www.sciencedirect.com/science/article/pii/S1878929315000675; https://doaj.org/toc/1878-9293; https://doaj.org/toc/1878-9307 |
| DOI: | 10.1016/j.dcn.2015.07.002 |
| Access URL: | https://doaj.org/article/d41e6d7356024081ac9c747c42f8bbd4 |
| Accession Number: | edsdoj.41e6d7356024081ac9c747c42f8bbd4 |
| Database: | Directory of Open Access Journals |
| ISSN: | 18789293 18789307 |
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| DOI: | 10.1016/j.dcn.2015.07.002 |
| Published in: | Developmental Cognitive Neuroscience |
| Language: | English |