| A | B |
| stimulus | a detectable change in the internal or external environment |
| internal stimulus | stimulus that happens IN side the organism |
| internal stimulus | example: feeling of hunger or thirst, headache |
| external stimulus | stimulus that happens OUT side the organism |
| external stimulus | example: pinch, touch, heat, light, cold, etc. |
| habituation | an animal learns not to respond to a repeated stimulus that conveys little or no information |
| habituation | example: ticking of a clock |
| imprinting | learning that is limited to a specific time period in an animal's life and that is usually irreversible |
| imprinting | example: ducklings following mother |
| trial and error learning | animal learns to associate one of its own behavioral acts with a positive or negative effect |
| trial and error learning | example: Coyote learning hard way not to attack porcupine nose first |
| conditioning | response linked to a reward or punishment |
| conditioning | example: dog - can opener |
| Instincts | something you are born with |
| Instincts | Example: cat landing on its feet. |