Imagine That Feeding Behavior Was Eliminated When a Radio-Frequency Lesion

question 57

Multiple Choice

Imagine that feeding behavior was eliminated when a radio-frequency lesion was used to damage the lateral hypothalamus of a rat, which suggested that cells within this region initiate feeding. If a subsequent study failed to observe a change in feeding after injection of kainic acid into the lateral hypothalamus, what conclusion would be appropriate?

• A) Glial cells within the lateral hypothalamus are key for the control of eating.
• B) The changes in eating noted in the first study are due to fibers that are passing through the lateral hypothalamus.
• C) The changes in eating are due to damage to cell bodies within the lateral hypothalamus, and these act to initiate eating.
• D) The lateral hypothalamus functions to inhibit eating.
• E) The investigator should have chosen a different inhibitory amino acid.

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