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  • "Why can't I stop?" Testing a two-factor theory of impulsivity and its application to substance misuse

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    Author(s)
    Gullo, Matthew J.
    Primary Supervisor
    Dawe, Sharon
    Other Supervisors
    Davis, Penny
    Jackson, Chris
    Year published
    2009
    Metadata
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    Abstract
    The misuse of alcohol and illicit substances remains a significant public health concern throughout the world. Recent advances in the understanding of biobehavioural processes involved in substance misuse hold great promise for enhancing prevention and treatment efforts. Specifically, there is converging evidence from the fields of personality and addiction neuroscience suggesting impulsive behaviour, and substance abuse specifically, is related to individual differences in the functioning of two neuropsychological systems. The first system is involved in the sensitivity to, and drive to obtain, rewarding stimuli (manifested ...
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    The misuse of alcohol and illicit substances remains a significant public health concern throughout the world. Recent advances in the understanding of biobehavioural processes involved in substance misuse hold great promise for enhancing prevention and treatment efforts. Specifically, there is converging evidence from the fields of personality and addiction neuroscience suggesting impulsive behaviour, and substance abuse specifically, is related to individual differences in the functioning of two neuropsychological systems. The first system is involved in the sensitivity to, and drive to obtain, rewarding stimuli (manifested as trait Reward Drive). The second system is related to the modulation or inhibition of approach to reward within the context of potential punishment (manifested as trait Rash Impulsiveness). Three studies were conducted in order to investigate the utility of a two-dimensional approach to impulsivity and substance misuse, and the specific mechanisms through which each dimension might convey risk...
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    Thesis Type
    Thesis (PhD Doctorate)
    Degree Program
    Doctor of Philosophy (PhD)
    School
    Griffith Health
    DOI
    https://doi.org/10.25904/1912/2971
    Copyright Statement
    The author owns the copyright in this thesis, unless stated otherwise.
    Item Access Status
    Public
    Subject
    impulsivity
    substance abuse
    substrance misuse
    alcohol misuse
    alcohol abuse
    drug misuse
    drug abuse
    substance misuse treatment
    neuropsychological systems
    Publication URI
    http://hdl.handle.net/10072/367540
    Collection
    • Theses - Higher Degree by Research

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