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![Nicotinic alpha7 receptors (indicated by red arrowheads) are next to a synapse between two brain cells in the prefrontal cortex. Stimulation of the nicotinic alpha7 receptors allows the cells to communicate and thus generate higher cognition. (Image from Dr. C. Paspalas, Yale University)](https://biz-file.com/c/1307/137709-208x117.jpg)
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