PMID- 33667595 OWN - NLM STAT- MEDLINE DCOM- 20220223 LR - 20230920 IS - 1873-5118 (Electronic) IS - 0301-0082 (Print) IS - 0301-0082 (Linking) VI - 201 DP - 2021 Jun TI - Dopamine-related striatal neurophysiology is associated with specialization of frontostriatal reward circuitry through adolescence. PG - 101997 LID - S0301-0082(21)00011-3 [pii] LID - 10.1016/j.pneurobio.2021.101997 [doi] AB - Characterizing developmental changes in frontostriatal circuitry is critical to understanding adolescent development and can clarify neurobiological mechanisms underlying increased reward sensitivity and risk-taking and the emergence of psychopathology during this period. However, the role of striatal neurobiology in the development of frontostriatal circuitry through human adolescence remains largely unknown. We examined background connectivity during a reward-guided decision-making task ("reward-state"), in addition to resting-state, and assessed the association between age-related changes in frontostriatal connectivity and age-related changes in reward learning and risk-taking through adolescence. Further, we examined the contribution of dopaminergic processes to changes in frontostriatal circuitry and decision-making using MR-based assessments of striatal tissue-iron as a correlate of dopamine-related neurobiology. Connectivity between the nucleus accumbens (NAcc) and ventral anterior cingulate, subgenual cingulate, and orbitofrontal cortices decreased through adolescence into adulthood, and decreases in reward-state connectivity were associated with improvements reward-guided decision-making as well as with decreases in risk-taking. Finally, NAcc tissue-iron mediated age-related changes and was associated with variability in connectivity, and developmental increases in NAcc R2' corresponded with developmental decreases in connectivity. Our results provide evidence that dopamine-related striatal properties contribute to the specialization of frontostriatal circuitry, potentially underlying changes in risk-taking and reward sensitivity into adulthood. CI - Copyright (c) 2021 Elsevier Ltd. All rights reserved. FAU - Parr, Ashley C AU - Parr AC AD - Department of Psychiatry, University of Pittsburgh, Pittsburgh, PA, 14213, United States. Electronic address: acp73@pitt.edu. FAU - Calabro, Finnegan AU - Calabro F AD - Department of Psychiatry, University of Pittsburgh, Pittsburgh, PA, 14213, United States. FAU - Larsen, Bart AU - Larsen B AD - Department of Psychiatry, University of Pittsburgh, Pittsburgh, PA, 14213, United States; Department of Psychiatry, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, 19104, United States. FAU - Tervo-Clemmens, Brenden AU - Tervo-Clemmens B AD - Department of Psychiatry, University of Pittsburgh, Pittsburgh, PA, 14213, United States. FAU - Elliot, Samuel AU - Elliot S AD - Department of Psychiatry, University of Pittsburgh, Pittsburgh, PA, 14213, United States. FAU - Foran, Will AU - Foran W AD - Department of Psychiatry, University of Pittsburgh, Pittsburgh, PA, 14213, United States. FAU - Olafsson, Valur AU - Olafsson V AD - NUBIC, Northeastern University, Boston, MA, 02115, United States. FAU - Luna, Beatriz AU - Luna B AD - Department of Psychiatry, University of Pittsburgh, Pittsburgh, PA, 14213, United States. LA - eng GR - R01 MH080243/MH/NIMH NIH HHS/United States PT - Journal Article PT - Research Support, N.I.H., Extramural DEP - 20210302 PL - England TA - Prog Neurobiol JT - Progress in neurobiology JID - 0370121 RN - E1UOL152H7 (Iron) RN - VTD58H1Z2X (Dopamine) SB - IM MH - Adolescent MH - Adult MH - Dopamine MH - Humans MH - Iron MH - Magnetic Resonance Imaging MH - Neural Pathways MH - *Neurophysiology MH - *Reward PMC - PMC8096717 MID - NIHMS1683045 OTO - NOTNLM OT - Adolescent development OT - Dopamine OT - Functional connectivity OT - Reward OT - Tissue iron COIS- Declaration of Interests The authors declare no competing interests. EDAT- 2021/03/06 06:00 MHDA- 2022/02/24 06:00 PMCR- 2022/06/01 CRDT- 2021/03/05 20:11 PHST- 2020/08/11 00:00 [received] PHST- 2021/01/08 00:00 [revised] PHST- 2021/01/11 00:00 [accepted] PHST- 2021/03/06 06:00 [pubmed] PHST- 2022/02/24 06:00 [medline] PHST- 2021/03/05 20:11 [entrez] PHST- 2022/06/01 00:00 [pmc-release] AID - S0301-0082(21)00011-3 [pii] AID - 10.1016/j.pneurobio.2021.101997 [doi] PST - ppublish SO - Prog Neurobiol. 2021 Jun;201:101997. doi: 10.1016/j.pneurobio.2021.101997. Epub 2021 Mar 2.