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Studies have proven that genetic variations and differences in our neurobiology can alter an individual's vulnerability to developing an addiction. [32] Estimates have shown that around 40%-60% of the susceptibility of an individual to develop an addiction to drugs, nicotine, and alcohol is allotted to genetic variables. [ 32 ]
Studies that followed up on the contribution of environmental enrichment to addiction produced mixed results. A replication study found that both caged and "park" rats showed a decreased preference for morphine compared to Alexander's original study; the author suggested a genetic reason for the difference Alexander initially observed. [6]
Addiction is a neuropsychological disorder characterized by a persistent and intense urge to use a drug or engage in a behavior that produces natural reward, despite substantial harm and other negative consequences.
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.
The study analyzed search queries mentioning gambling, addiction, addict, anonymous or hotline — such as gambling addiction hotline — from January 2016 through June 2024.
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 ...
A 2012 study conducted by the National Center on Addiction and Substance Abuse at Columbia University concluded that the U.S. treatment system is in need of a “significant overhaul” and questioned whether the country’s “low levels of care that addiction patients usually do receive constitutes a form of medical malpractice.”
Twin studies, adoption studies, and artificial selection studies have shown that a person's genes can predispose them to developing alcoholism. Evidence from twin studies show that concordance rates for alcoholism are higher for monozygotic twins than dizygotic twins—76% for monozygotic twins and 61% for dizygotic twins. [10]