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  2. Substance dependence - Wikipedia

    en.wikipedia.org/wiki/Substance_dependence

    Substance dependence, also known as drug dependence, is a biopsychological situation whereby an individual's functionality is dependent on the necessitated re-consumption of a psychoactive substance because of an adaptive state that has developed within the individual from psychoactive substance consumption that results in the experience of withdrawal and that necessitates the re-consumption ...

  3. Addiction psychology - Wikipedia

    en.wikipedia.org/wiki/Addiction_psychology

    This model classifies addiction as a diagnosable disease just as cancer or diabetes. It attributes addiction to a chemical imbalance in an individual's brain associated with genetics or environmental factors. [3] The other model is the choice model of addiction, which contends that addiction is a result of voluntary actions rather than brain ...

  4. Addiction - Wikipedia

    en.wikipedia.org/wiki/Addiction

    Models of addiction risk that have been proposed in psychology literature include: an affect dysregulation model of positive and negative psychological affects, the reinforcement sensitivity theory of impulsiveness and behavioral inhibition, and an impulsivity model of reward sensitization and impulsiveness.

  5. Psychological dependence - Wikipedia

    en.wikipedia.org/wiki/Psychological_dependence

    Psychological dependence develops through consistent and frequent exposure to a stimulus. After sufficient exposure to a stimulus capable of inducing psychological dependence (e.g., drug use), an adaptive state develops that results in the onset of withdrawal symptoms that negatively affect psychological function upon cessation of exposure.

  6. Personality theories of addiction - Wikipedia

    en.wikipedia.org/wiki/Personality_theories_of...

    Models of addiction risk that have been proposed in psychology literature include an affect dysregulation model of positive and negative psychological affects, the reinforcement sensitivity theory model of impulsiveness and behavioral inhibition, and an impulsivity model of reward sensitization and impulsiveness. [1] [5] [6]

  7. Addictive behavior - Wikipedia

    en.wikipedia.org/wiki/Addictive_behavior

    There are two main forms of addiction: substance use disorders (including alcohol, tobacco, drugs and cannabis) and behavioral addiction (including sex, gambling, eating and shoplifting). [4] The parallels and distinctions between behavioral addictions and other compulsive behavior disorders like bulimia nervosa and obsessive-compulsive ...

  8. Substance abuse - Wikipedia

    en.wikipedia.org/wiki/Substance_abuse

    [1] Dependence liability is the average rating of the scores for intensity of pleasure, psychological dependence, and physical dependence. [1] Social harm is the average rating of the scores for drug intoxication, health-care costs, and other social harms. [1]

  9. Addiction-related structural neuroplasticity - Wikipedia

    en.wikipedia.org/wiki/Addiction-related...

    The animal models of addiction are particularly useful because animals that are addicted to a substance show behaviors similar to human addicts. This implies that the structural changes that can be observed after the animal ingests a drug can be correlated with an animal's behavioral changes, as well as with similar changes occurring in humans.