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A new study focused has found that frustration could be an additional factor in substance use disorders.The findings of the study were published in the journal 'Psychopharmacology'. A team from The University of Texas Medical Branch at Galveston (UTMB), which focused on drug addiction research, has pioneered a new way to study frustration as a factor in substance use disorders.Traditional addiction research has focused on three aspects of substance use disorders: craving, impulsivity, or habit. Scientists hypothesized that a fourth factor, frustration, could also lead to an escalation of drug use and addiction.The study noted that research into the role of frustration and substance use disorders is sparse, but a number of studies suggest that persons with substance use disorders have lower frustration tolerance. Studies have shown that sensitivity to frustration correlates with relapse among those with substance use disorders.The UTMB studies used a rat model to focus on frustration-related behaviour. Rats can be trained to press a lever for food or drugs (reinforcers), and frustration is defined as when a subject is unable to achieve a reinforcer, receives less of a reinforcer than anticipated, or has to work harder to achieve a reinforcer."An example of frustration behaviour is when someone can't get the channel on the TV to change or when an elevator takes too long to arrive. People will often respond to both situations by pressing the button repeatedly or holding the button longer with repeated attempts. This typical human response to frustration is the same in rats. In our study, rats were trained to press a lever for delivery of either a sucrose pellet or an intravenous infusion of a synthetic opioid. If they didn't get what they expected, they would press the lever more frequently and for longer periods of time," said Dr Thomas A. Green, of UTMB's Department of Pharmacology and Toxicology."When a rat presses a lever repeatedly that was supposed to deliver a banana-flavoured sucrose pellet, but the pellets never arrive, they hold the levers down longer as the frustration builds," he said.Tileena Vasquez, a doctoral candidate in UTMB's Department of Pharmacology and Toxicology and the lead author of the paper, said the study showed all rats would press a lever for intravenous infusions of fentanyl, a synthetic opioid, but about 10 per cent of rats would escalate their intake of fentanyl to about double that of the average rat."Even as the escalating rats take massive amounts of drug, their bar presses get longer (in some cases up to 10 minutes long), even though long bar presses do not increase the amount of drug delivered," Vasquez said, adding that the conclusion is that these susceptible rats, even though they are taking as much fentanyl as their bodies can handle, are frustrated that they are still not getting enough drug to satisfy them.Green said that the study has obvious implications for future studies of opioid use disorder and will help scientists understand how frustration, as well as craving, impulsivity, and habit, can lead to opioid escalation.( With inputs from ANI )Disclaimer: This post has been auto-published from an agency feed without any modifications to the text and has not been reviewed by an editor

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Technology :Frustration could be additional factor in substance use disorders, claims study

A clinical research focused on drug addiction, led by the scientists at The University of Texas Medical Branch at Galveston (UTMB), has found a new way to study frustration as a factor in substance use disorders. ...

Health :Study reveals frustration could be an additional factor of addiction

A new study focused has found that frustration could be an additional factor in substance use disorders. ...