In the Eyeblink experiment, repeated pairings a tone (CS) an…

In the Eyeblink experiment, repeated pairings a tone (CS) and a puff of air applied to the eye (US) eventually elicited eyeblinking behavior in response to the tone alone.  However, delaying the presentation of the puff after the tone elicited less eyeblinking behavior in response to the tone alone.  These results suggest