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Nicotine has been shown in a variety of studies to improve cognitive function including learning, memory and attention. Nicotine both stimulates and desensitizes nicotinic receptors, thus acting both as an agonist and a net antagonist. The relative roles of these two actions for nicotine-induced cognitive improvement have not yet been fully determined. We and others have found that acute nicotinic...
Nicotine has been found in many studies to improve cognitive function. However, some studies have not found this effect and others have seen nicotine-induced impairments. Systemic administration bathes the brain with drugs. However, the brain is quite intricately organized with various regions playing very different roles in the bases of cognitive function. We have examined the role of nicotinic receptors...
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