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) The lateral hypothalamus functions to inhibit eating.
B) The changes in eating noted in the first study may be due to damage to axon 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) Glial cells within the lateral hypothalamus are key for the control of eating.
E) Cannot draw a conclusion based on this study.

Question

Quizplus · Accepted Answer

If a radiofrequency lesion of a brain area alters feeding but kainic acid injected into the same brain region did not,the changes in eating noted in the first study may be due to damage to axon fibers that are passing through the lateral hypothalamus.

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