Need Recognition in Marketing

Have you ever wonder why when you see advertisement about some type of food that you like; it triggers your body to start reacting as if you where hungry? If yes then you have been a victim of "Need Recognition in Marketing", this is where some sort of Marketing where you are exposed to an Internal or External Stimulus and your react.

Like the old saying "Never go do the Grocery Shopping when you are hungry"! Why is that? Because you will come home with a lot of stuff that you would never have bought, due to you stomach thinking for your mind. And I know you have done this, so next time teat before you go to the grocery store and see what you buy.

When you think of water what happens to your body? This is an example of Need Recognition. Or why do most Beer Commercials have a flowing stream of mountain water? Is this to imply freshness and the water to make your feel thirsty? I bet it is; because that is how I see it when I see the Coors Commercials.