When Pavlov put food powder in the dog's mouth, and saliva was generated. That's an unconditioned stimulus giving rise to an unconditioned response.
⇑ Translate the sentence above by Google ⇑
Related: stimulus
Prev: Aerotropism A TROPISM in which the orientating stimulus is oxygen.
Next: They have the stimulus right there on the outside of their bodies in order to do the grooming.
