Decline in the dendency to respond to an event that has become familiar through repeated exposure.

i.e. smells, sound of car

Increased responsiveness, or sensitivity, to an event that has been repeated.

i.e. Loud noise, car that ends up in your lane

A Neutral stumulus (NS) that is paired with the UCS during classical conditioning.

i.e. feeders footsteps

The acquired response produced by the conditioned stimulus in anticipation of the US.

i.e. Dog salivates (CR) when hearing the feeder's footsteps

Responding to a new stimulus in a way similar to the response produced by an established CS.

i.e. "Little Albert" conditioned to fear white rats; fear extended to rabbits, fur coats

Responding differently to a new stimulus than one responds to an established CS

i.e. Little Alberts fear didn't extend to a block of wood

Presenting a CS repeatedly, after conditioning, without the UCS, resulting in a loss in responding.

i.e. Food no longer follows a bell, so dog gradually stops salivating in response to the bell

Recovery of an extinguished CR after a period of nonexposure to the CS

note: Sometimes the CR isn't as strong as it once was