You walk out into bright sunlight. you immediately reach in your purse and get your sunglasses. putting on your sunglasses to escape the sun's bright light is an example of

putting on your sunglasses to escape the sun's bright light is an example of: Negative reinforcement

Negative reinforcement is a response toward a specific stimulus that is done to prevent prolong exposure to that stimulus.

Another example of negative reinforcement: pinching your nose when you smell something horrible