Alexis Fernandez-Preiksa

The bell and the dog.

This is classical conditioning, and I'm going to give you a very, very, very quick overview because this is how habits are learnt and broken as well.

So Pavlov...

the psychologist or psychiatrist who ran this study, it was this sounding of a bell.

What he would do is he would sound a bell and then feed a dog, okay?

So the bell sound was the conditioned stimulus.

It's what you were conditioned to learn.

It was this learnt thing, okay?

It was a conditioned stimulus and they had associated it or paired it with food and food was the unconditioned stimulus, okay?

So food, they're always going to salivate when they have food because it's unconditioned.

It's just this innate thing that they're going to do.

And then they started introducing the bell parrot with food.

And then the aim was that eventually when you would hear the bell, even without the food, the dogs would start salivating even if the food wasn't present because they had this condition.

They'd conditioned themselves to...

learn that that stimulus equaled food or salivating because they thought food was going to come.

Okay.

However, when it came to, so that was the conditioned response, the salivating to the bell was the conditioned response.

Okay.

But if you kept ringing the bell enough times and you didn't pair the bell with food, eventually

the salivating would stop with the bell, okay?