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Memory-like effects in brain reward pathway could contribute to drug addiction. The effects of nicotine upon brain regions involved in addiction mirror those of cocaine, according to new neuroscience research. A single 15-minute exposure to nicotine caused a long-term increase in the excitability of neurons involved in reward, according to a study published in The Journal of Neuroscience.
Nicotine in the Brain. It's in the brain that nicotine does its most work and damage. There are millions of neurons, cells that transfer information throughout the nervous system. Between two neurons is the synapse, across which information is sent.icotine in the Brain. It's in the brain that nicotine does its most work and damage. There are millions of neurons, cells that transfer information throughout the nervous system. Between two neurons is the synapse, across which information is sent.