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Through this model, addiction is viewed as a choice and is studied through components of the brain such as reward, stress, and memory. [5] Substance addictions may be related to drugs, alcohol and smoking, [ 6 ] process addictions are related to non-substance-related behavior, such as gambling, spending money, sexual activity, gaming, spending ...
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.
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]
Almost all major recreational drugs are secondary plant compounds or a close chemical analog. [12] It is well established that in both present and past contexts plants have been used for medicinal purposes. [12] A core premise of evolutionary theory is that a trait cannot evolve unless it contributes to an individual's reproductive fitness ...
An addiction is, by definition, a form of compulsion, and involves operant reinforcement. For example, dopamine is released in the brain's reward system and is a motive for behaviour (i.e. the compulsions in addiction development through positive reinforcement). [19] There are two main differences between compulsion and addiction.
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 ...
Personality theories of addiction are psychological models that associate personality traits or modes of thinking (i.e., affective states) with an individual's proclivity for developing an addiction. Data analysis demonstrates that psychological profiles of drug users and non-users have significant differences and the psychological ...
These models specifically examine how these aspects play a role in a range of topics but mainly psychiatry, health and human development. The term is generally used to describe a model advocated by George L. Engel in 1977. The model builds upon the idea that "illness and health are the result of an interaction between biological, psychological ...