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When the stomach has been empty for a period, it begins to contract. These contractions are commonly experienced as 'hunger pangs' and serve as a physical signal to the brain that prompts the initiation of feeding behavior.

Stomach Contractions as a Hunger Signal

A research subject consumes a large meal and reports feeling completely full. An hour later, a researcher uses a special device to artificially induce the specific stomach contractions that are normally associated with being empty. What is the most likely sensation the subject will report as a direct result of these contractions?

A patient has undergone a medical procedure that prevents their stomach from contracting, eliminating the physical sensation of 'hunger pangs'. Despite the absence of this specific signal, the patient still reports feeling the need to eat at regular mealtimes. Based on this information, what is the most logical conclusion about the body's system for regulating eating?

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