Journal
DEVELOPMENTAL REVIEW
Volume 28, Issue 1, Pages 62-77Publisher
ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/j.dr.2007.08.003
Keywords
adolescence; prefrontal cortex; nucleus accumbens; impulsivity; reward; development; risk-taking
Categories
Funding
- NIDA NIH HHS [R01 DA018879, R01 DA018879-04, R01 DA18879] Funding Source: Medline
- NIDA NIH HHS [R01 DA018879-04, R01 DA018879] Funding Source: Medline
- NIMH NIH HHS [MH73175, R01 MH073175, P50 MH62196, R01 MH073175-04, P50 MH062196-050004, P50 MH062196] Funding Source: Medline
- NIMH NIH HHS [R01 MH073175, P50 MH062196-050004, P50 MH062196, R01 MH073175-04] Funding Source: Medline
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Adolescence is a developmental period characterized by suboptimal decisions and actions that give rise to an increased incidence of unintentional injuries and violence, alcohol and drug abuse, unintended pregnancy and sexually transmitted diseases. Traditional neurobiological and cognitive explanations for adolescent behavior have failed to account for the nonlinear changes in behavior observed during adolescence, relative to childhood and adulthood. This review provides a biologically plausible conceptualization of the neural mechanisms underlying these nonlinear changes in behavior, as a heightened responsiveness to incentives while impulse control is still relatively immature during this period. Recent human imaging and animal studies provide a biological basis for this view, suggesting differential development of limbic reward systems relative to top-down control systems during adolescence relative to childhood and adulthood. This developmental pattern may be exacerbated in those adolescents with a predisposition toward risk-taking, increasing the risk for poor outcomes. (c) 2007 Elsevier Inc. All rights reserved.
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