This study is an elegant example of yet another way that addiction 'hijacks' the reward system. The phasic release of dopamine triggers us to seek things that, in theory, help us to adapt to our environment," commented Dr. John Krystal, editor of Biological Psychiatry. "However, in addiction the phasic release of dopamine is heightened and it triggers the pursuit of abused substances. This disturbance of dopamine function would, conceivably, make it that much harder to avoid seeking drugs of abuse."
According to the authors, these findings indicate that medications which could help elevate tonic dopamine levels during withdrawal may be successful treatment strategies for nicotine-dependent individuals attempting to quit smoking. Theoretically, such a treatment could help normalize any fluctuating dopamine levels from the sudden lack of nicotine, and also lessen the dopamine-influenced urges to seek out the nicotine, leading to relapse.
This study is an elegant example of yet another way that addiction 'hijacks' the reward system. The phasic release of dopamine triggers us to seek things that, in theory, help us to adapt to our environment," commented Dr. John Krystal, editor of Biological Psychiatry. "However, in addiction the phasic release of dopamine is heightened and it triggers the pursuit of abused substances. This disturbance of dopamine function would, conceivably, make it that much harder to avoid seeking drugs of abuse."According to the authors, these findings indicate that medications which could help elevate tonic dopamine levels during withdrawal may be successful treatment strategies for nicotine-dependent individuals attempting to quit smoking. Theoretically, such a treatment could help normalize any fluctuating dopamine levels from the sudden lack of nicotine, and also lessen the dopamine-influenced urges to seek out the nicotine, leading to relapse.
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