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Adolescent Substance Use and the Brain: Behavioral, Cognitive and Neuroimaging Correlates

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TLDR
This review focuses on the neurobiological divergences associated with adolescent substance use, derived from a cross-sectional, retrospective, and longitudinal studies, and highlights how the use of these substances during adolescence may relate to behavioral and neuroimaging-based outcomes.
Abstract
Adolescence is an important ontogenetic period that is characterized by behaviors such as enhanced novelty-seeking, impulsivity, and reward preference, which can give rise to an increased risk for substance use. While substance use rates in adolescence are generally on a decline, the current rates combined with emerging trends, such as increases in e-cigarette use, remain a significant public health concern. In this review, we focus on the neurobiological divergences associated with adolescent substance use, derived from a cross-sectional, retrospective, and longitudinal studies, and highlight how the use of these substances during adolescence may relate to behavioral and neuroimaging-based outcomes. Identifying and understanding the associations between adolescent substance use and changes in cognition, mental health, and future substance use risk may assist our understanding of the consequences of drug exposure during this critical window.

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References
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Journal ArticleDOI

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TL;DR: Developmental changes in prefrontal cortex and limbic brain regions of adolescents across a variety of species, alterations that include an apparent shift in the balance between mesocortical and mesolimbic dopamine systems likely contribute to the unique characteristics of adolescence.
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Drug Addiction and Its Underlying Neurobiological Basis: Neuroimaging Evidence for the Involvement of the Frontal Cortex

TL;DR: An integrated model of drug addiction that encompasses intoxication, bingeing, withdrawal, and craving is proposed, and results imply that addiction connotes cortically regulated cognitive and emotional processes, which result in the overvaluing of drug reinforcers, the undervalued of alternative rein forcers, and deficits in inhibitory control for drug responses.
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Pharmacology of cannabinoid cb1 and cb2 receptors

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The brain reward circuitry in mood disorders

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