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Habituation is also proclaimed to be a form of implicit learning, which is commonly the case with continually repeated stimuli. This characteristic is consistent with the definition of habituation as a procedure, but to confirm habituation as a process, additional characteristics must be demonstrated. Also observed is spontaneous recovery. That ...
In 1964, a new WHO committee found these definitions to be inadequate, and suggested using the blanket term 'drug dependence': The definition of addiction gained some acceptance, but confusion in the use of the terms addiction and habituation and misuse of the former continued. Further, the list of drugs abused increased in number and diversity.
Drug addiction, which belongs to the class of substance-related disorders, is a chronic and relapsing brain disorder that features drug seeking and drug abuse, despite their harmful effects. [31] This form of addiction changes brain circuitry such that the brain's reward system is compromised, [ 32 ] causing functional consequences for stress ...
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 ...
addictive drug – psychoactive substances that with repeated use are associated with significantly higher rates of substance use disorders, due in large part to the drug's effect on brain reward systems; dependence – an adaptive state associated with a withdrawal syndrome upon cessation of repeated exposure to a stimulus (e.g., drug intake)
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.
This model proposes that habituation is a neurological holographic wavelet interference of opponent processes that explains learning, vision, hearing, taste, balance, smell, motivation, and emotions. Beyond addictive behavior, opponent-process theory can in principle explain why processes (i.e. situations or subjective states) that are aversive ...
Drug tolerance or drug insensitivity is a pharmacological concept describing subjects' reduced reaction to a drug following its repeated use. Increasing its dosage may re-amplify the drug's effects; however, this may accelerate tolerance, further reducing the drug's effects.