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Neurons that control overeating also drive appetite for cocaine
Date:6/24/2012

feeding circuits during development, which then impacts the adult response to drugs and novelty in the environment."

Horvath and his team argue that the hypothalamus, which controls vital functions such as body temperature, hunger, thirst fatigue and sleep, is key to the development of higher brain functions. "These hunger-promoting neurons are critically important during development to establish the set point of higher brain functions, and their impaired function may be the underlying cause for altered motivated and cognitive behaviors," he said.

"There is this contemporary view that obesity is associated with the increased drive of the reward circuitry," Horvath added. "But here, we provide a contrasting view: that the reward aspect can be very high, but subjects can still be very lean. At the same time, it indicates that a set of people who have no interest in food, might be more prone to drug addiction."


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Contact: Karen N. Peart
203-432-1326
Yale University
Source:Eurekalert

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