March 11, 2011
Thrill-Seeking Females Work Hard For Their Next Fix
It seems that women become addicted to cocaine more easily than men and find it harder to give up. New research published in BioMed Central's open access journal Biology of Sex Differences reinforces this position by showing that the motivation of female rats to work for cocaine is much higher than males.
Researchers from the Molecular and Behavioral Neuroscience Institute, University of Michigan, found that rats bred to have an elevated stress response and increased impulsiveness are more easily trained to reward themselves with cocaine. They are also more determined, than similar rats with low impulsivity and lower stress responses, in pursuit of their next fix.
Whilst certain personality types are perhaps predisposed towards drug addiction Dr Jennifer Cummings explained, "An individual's sex continues to increase the likelihood of drug abuse."
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