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Aug21
Map Hunger Cycles through Neuron Activity

Map neural pathways of your hunger, and you’ll likely discover codes that drive you to satisfy hunger. When that mental process pushes you to eat more than is  necessary for survival, it helps to see what brain regions take part in the feeding cycle.

With brain imaging techniques … Ivan de Araujo, Duke University Medical Center , and colleagues mapped brain activity of whole neurons networks involved in multiple feeding-related brain areas across a full cycle of hunger-satisfaction-hunger. Check out their findings in the August 17, 2006, issue of the journal Neuron, which is published by Cell Press.

The researchers identified neurons that were sensitive to changes in satiety states as lab animals satisfied their hunger. They measured how neurons changed their activity over the different phases of a feeding cycle, reflecting the physiological state of the animals. In the next round of research … hopefully they will come up with ways that these codes can be rewritten in minds where signals got screwed and hunger bells ring too much and too early. We’ll be following this one.


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