Why does it seems in similar cases sometimes classic conditioning happens and in othe

[neuroanalysis]

I'm slightly confused and was hoping you guys could correct me.

In classic conditioning as with Pavlov's dogs if we ring a bell just before a dog is given food, the bell with give the same response the food alone would have such as an excess of saliva. On a cellular level when two cells fire at a similar time one can cause the other cell to fire. What I don't understand is why this doesn't happen in cases of habituation. So we already have the connection fattening foods taste good and when we eat a burger it should strengthen the connection between this is a fattening food, you like fattening foods you like this burger, but this doesn't happen if we had burgers everyday we get bored of it.

So guys where am I going wrong here? On a cellular level why is one different than the other ?

[David Swift]

Without getting too technical, it's more complex than that. No baby needs to be conditioned to like mother's milk. We're not conditioned to like food, rather, it looks more like we're genetically programed to like food.