“We wanted to determine whether, at baseline, there were structural differences in the cortex of those who were able to maintain sobriety for at least 12 months after treatment than those who relapsed within 12 months of treatment,” said Durazzo. “We found that individuals . AD – both abstainers and future -. Our Results also indicated that relapse showed structural abnormalities of the most important of the SAB. “Durazzo described this network as not only involved in the experience of pleasure and aversion, but also in the regulation of mood, higher level cognitive abilities such as problem solving, reasoning, decision making, planning and control, and Judgement of pulses. “Abnormal BRS biology may also play an important role in the development and persistence of all forms of” he said.
Durazzo and colleagues used magnetic resonance imaging (MRI) to examine the components of SAB 75 (71 men, 4 women) seeking treatment of individuals with AD a week of abstinence and 43 controls (39 men, 4 women). The AD participants were followed for 12 months after the initial examination, and classified as abstainers (n = 24, without alcohol) and relapse (n = 51, alcohol).
Durazzo added that these results suggest that individuals who show the greatest degree of neurobiological abnormalities in BRS at baseline may be at greater risk of relapse. “In particular, the deficiencies in the normal operation of the BRS are associated with impaired problem solving, reasoning, decision making, planning and judgment, mood and impulse control,” he said. “It can interfere with the ability to cope with the stress and demands of everyday life and leave people more vulnerable to relapse.”
The results will be published in June 2011 on the number of the journal Alcoholism: Clinical & Experimental Research and are currently available from See you soon.
“A series of brain imaging findings are emerging that can be used to predict which patients may need a longer stay or hospital stay more intensive monitoring, or more accurately a monitoring plan designed to prevent relapse,” said Tapert. “For example, individuals with smaller areas of reward-related frontal lobe of the brain may need external constraints to prevent them from returning to heavy drinking of alcohol.”
“A considerable amount of research has examined the psychological, psychiatric, socio-demographic and behavioral associated with relapse after treatment, but as the brain biology and function contribute to relapse is not well understood,” said Durazzo. “This research indicates that further neuroimaging studies as brain biology and function contribute to relapse is necessary to develop more effective medications and behavioral treatments for addictive disorders.”
At least 60 percent of people treated for alcohol disorder will relapse, usually within six months of treatment. Because the brain’s reward system (BRS) is involved in the development and maintenance of all forms of addictive disorders, this study compared the components thickness, surface area and volume of the neocortex of SAB among three groups: light drinkers, alcohol-dependent (AD) who are still abstinent after treatment, and those who relapse. Results support the influence of neurobiological factors on recidivism.
“The SAB is a set of regions / structures in the frontal and temporal lobes, limbic system, basal ganglia and other subcortical structures that form a functional network that is involved in determining whether a substance or experience is pleasant or unpleasant to use – including the ‘alcohol, food and other substances, “said Timothy C. Durazzo, assistant adjunct professor in the Department of Radiology at the University of California at San Francisco and corresponding author for the study. ‘BRS also deals with how we behave in response to pleasant or unpleasant substance or situation ”
“If the BRS is not healthy or well-developed, which could lead to problems of delaying gratification, keeping emotions in guiding decisions, and receive rewards in small, healthy day to day events,” said Susan F. Tapert, acting chief of psychology at the VA San Diego Healthcare System and professor of psychiatry at the University of California at San Diego. “Anomalies of the brain could then result in intakes more frequent, intense or harmful use of alcohol or other intoxicants.”