Final answer:
Electrical stimulation of the LH, which increases feeding behavior, is analogous to ghrelin, which increases appetite. Conversely, stimulation of the VMH, which suppresses hunger, is similar to the action of CCK, which induces satiety.
Step-by-step explanation:
The question 'Electrical stimulation of the LH is to electrical stimulation of the VMH as?' is referring to the comparison between the effects these two different areas of the brain have when stimulated. The LH (lateral hypothalamus) and VMH (ventromedial hypothalamus) play roles in regulating hunger and satiety.
Electrical stimulation of the LH typically leads to an increase in feeding behavior, whereas stimulation of the VMH often results in suppression of hunger. In this context, the LH can be thought of as analogous to substances that increase hunger or feeding behavior, while the VMH can be considered analogous to substances that decrease hunger or inhibit feeding behavior.
Given the options presented, the most appropriate analogy to the function of LH and VMH in terms of appetite regulation would be: 5) CCK is to ghrelin. Cholecystokinin (CCK) is a hormone that induces satiety and reduces eating, while ghrelin is known as the 'hunger hormone' and increases appetite, much like the LH. Therefore, CCK's satiety effect is to ghrelin's hunger effect as electrical stimulation of the VMH is to stimulation of the LH.