News tagged with reward system
Low dopamine levels during withdrawal promote relapse to smoking
Mark Twain said, "Giving up smoking is the easiest thing in the world. I know because I've done it thousands of times." Many smokers would agree that it's difficult to stay away from cigarettes. A new study in Biological Ps ...
Medicine & Health / Psychology & Psychiatry
Feb 08, 2012 |
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Enzyme might be target for treating smoking, alcoholism at same time
An enzyme that appears to play a role in controlling the brain's response to nicotine and alcohol in mice might be a promising target for a drug that simultaneously would treat nicotine addiction and alcohol abuse in people, ...
Sep 12, 2011 |
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Faulty signaling in brain increases craving for sugar and drugs
When glutamate and dopamine do not collaborate as they should in the brain's signal system, the kick that alcohol, sugar, or other drugs induce increases. This is shown in a new Swedish-Canadian study on mice being published ...
Medicine & Health / Neuroscience
Aug 30, 2011 |
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Feeding hormone ghrelin modulates ability of rewarding food to evoke dopamine release
New research findings to be presented at the upcoming annual meeting of the Society for the Study of Ingestive Behavior (SSIB), the foremost society for research into all aspects of eating and drinking behavior, finds that ...
Jul 12, 2011 |
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New brain research suggests eating disorders impact brain function
Bulimia nervosa is a severe eating disorder associated with episodic binge eating followed by extreme behaviors to avoid weight gain such as self-induced vomiting, use of laxatives or excessive exercise. It is poorly understood ...
Medicine & Health / Psychology & Psychiatry
Jul 11, 2011 |
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Abnormal brain structure linked to chronic cocaine abuse
Researchers at the University of Cambridge have identified abnormal brain structures in the frontal lobe of cocaine users' brains which are linked to their compulsive cocaine-using behaviour. Their findings were published ...
Medicine & Health / Neuroscience
Jun 21, 2011 |
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New leads on the causes of alcoholism
In order to develop new medications for alcoholism, researchers need to understand how alcohol acts on the brain's reward system. A previously unknown mechanism has been shown to block the rewarding effects of alcohol on ...
Apr 04, 2011 |
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Genetic changes behind sweet tooth
The substance ghrelin plays an important role in various addictions, such as alcoholism and binge-eating. It also impacts on sugar consumption, which is due, in part, to genetic factors, reveals new research from the University ...
Apr 04, 2011 |
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Integrity of the brain's reward system is linked to relapse following treatment
The brain reward system (BRS) is involved in developing/maintaining addictive disorders, as well as relapse. New findings show that alcohol dependent individuals -- both future abstainers and relapsers -- have significantly ...
Mar 15, 2011 |
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Unlocking the secrets of our compulsions
Researchers have shed new light on dopamine's role in the brain's reward system, which could provide insight into impulse control problems associated with addiction and a number of psychiatric disorders.
Dec 08, 2010 |
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Drug decreases alcohol cravings
Rapamycin, an FDA-approved drug prescribed to prevent the rejection of transplanted organs, has been shown for the first time to decrease excessive alcohol consumption, binge drinking, and alcohol-seeking behavior in rodents. ...
Nov 02, 2010 |
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Why the craving for cocaine won't go away
People who have used cocaine run a great risk of becoming addicted, even after long drug-free periods. Now researchers at Linköping University and their colleagues can point to a specific molecule in the brain as a possible ...
Medicine & Health / Neuroscience
Sep 16, 2010 |
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Biochemical pathway may link addiction, compulsive eating
Ezlopitant, a compound known to suppress craving for alcohol in humans, was shown to decrease consumption of sweetened water by rodents in a study by researchers at the Ernest Gallo Clinic and Research Center, which is affiliated ...
Sep 01, 2010 |
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Sensitivity to alcohol odors may indicate a genetic predisposition to alcohol dependence
Single nucleotide polymorphisms (SNPs) are DNA sequence variations that occur when a single nucleotide in the genome sequence is altered. Prior research suggested an association between SNPs in a gene that encodes aspects ...
Sep 01, 2010 |
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Psychopaths' brains wired to seek rewards, no matter the consequences
The brains of psychopaths appear to be wired to keep seeking a reward at any cost, new research from Vanderbilt University finds. The research uncovers the role of the brain's reward system in psychopathy ...
Medicine & Health / Neuroscience
Mar 14, 2010 |
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