Cephalic
Step-by-step explanation:
The cephalic phase reflex of gastric secretion, which is relatively brief, takes place before food enters the stomach
The smell, taste, sight, or thought of food triggers this type of reflex
For example, when we bring a piece of food item to our lips, impulses from receptors in our taste buds or the nose are relayed to our brain, which returns signals that increase gastric secretion to prepare our stomach for digestion
This enhanced secretion is a conditioned reflex, which means it occurs only if we like or want a particular food
Depression and loss of appetite are two factors which can suppress the cephalic reflex