Drug addiction and abuse clearly have a negative impact on today's society. It's no secret that drugs kill brain cells and that addiction is difficult to break. Study after study has shown that drugs are addictive. Several studies have been conducted to address drug abuse and addiction in the United States of America and how it affects people under the influence. A study was conducted in which rats were given long periods of access to the drug, which is of great interest given its ability to model many symptoms of human substance use disorder. Adult male Sprague-Dawley rats received 5 minutes of access to a 0.15% saccharin solution followed by the opportunity to self-administer saline or heroin for 3 hours (brief access) or 6 hours (extended access). After 16–18 matings, terminal saccharin intake was used to classify rats into small or large suppressors and to respond while the drug was screened accordingly. If rats that are more avoidant of the taste stimulus associated with heroin would show the greatest drug escalation over time, the greatest willingness to work for the drug, and the greatest heroin-induced relapse. Rats were used as active participants and the amount of heroin was measured in terms of taste when introduced to the rats. The procedure involved adding saline solution and heroin to the water. Say no to plagiarism. Get a tailor-made essay on "Why Violent Video Games Shouldn't Be Banned"? Get an original essay This study resulted in only 5% of short-access rats reaching criteria for large suppressors. This large suppressant did not differ from small suppressors in drug-taking behavior. There was a 50% rate of rats with prolonged access to saccharin-heroin that were largely dependent on suppressants and were the ones that showed the greatest escalation in drug intake. They also exhibited drug loading behavior, as well as the greatest symptomatic relapse behaviors. The study concluded that rats would avoid taking a taste cue when paired with drugs of abuse administered to the experimenter, including morphine, cocaine, ethanol, amphetamines and heroin. The second study on drug addiction highlighted the effect of stress-induced changes in motivation. take the medicine. This study involved Iranian drug addicts and people who have never used drugs in their life to undergo the Stroop addiction test. The goal was to see if culture mattered in drug addiction. Participants included drug addicts, with a medical history of opium and heroin abuse, who were in a methadone maintenance treatment program. Only non-abusers with a history of never having abused drugs or alcohol participated in the study as controls. The study found that drug addicts had a higher attentional bias for drug-related stimuli than non-drug addicts, after the effects of age and education were controlled for. The results indicate that drug-related attention bias is culture-free, the limitation of the study being that the majority of testers were men. The third study consisted of drug abuse treatment, including the type of treatment and duration of different approaches. Over 10,000 patients were divided into different treatment centers to determine the severity of which drugs are being abused and how they are abused. The present study included 10,010 DATOS customers who were interviewed from 1991 to 1993 and also customers who received.