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The neurotoxin regulation model of human drug use proposes that during the course of human evolution, plant consumption played a key role. The hypothesis suggests that the compulsory consumption of both the nutrients and neurotoxins in plants selected for a system capable of maximizing the benefits of plant energy extraction while mitigating ...
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]
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 ...
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 ...
Many neurobiological theories of addiction place repeated or continued use of the drug in the path of addiction development. For example, researchers have theorized that addiction is the result of the shift from goal-directed actions to habits and ultimately, to compulsive drug-seeking and taking. [18] [19]
While EDP theory generally aligns with that of mainstream EP, it is distinguished by a conscious effort to reconcile theories of both evolution and development. [5] EDP theory diverges from mainstream evolutionary psychology in both the degree of importance placed on the environment in influencing behavior, and in how evolution has shaped the ...
The common biomolecular mechanisms underlying addiction – CREB and ΔFosB – were reviewed by Eric J. Nestler in a 2013 review. [3] Genetics and mental disorders may precipitate the severity of a drug addiction. It is estimated that 50% of healthy individuals developing an addiction can trace the cause to genetic factors. [4]
An addictive personality refers to a hypothesized set of personality traits that make an individual predisposed to developing addictions.This hypothesis states that there may be common personality traits observable in people suffering from addiction; however, the lack of a universally agreed upon definition has marked the research surrounding addictive personality.