Rats were tested in either (a) a stabilimeter in which a distinctive cue was presented prior to a startle producing loud tone, or (b) a hurdle box in which hurdle crossing terminated the same distinctive cue. Experimental Ss [subjects] which had previously experienced the cue paired with frustrative-nonreward showed, as compared to control Ss, (a) more vigorous startle responses in the stabilimeter, and (b) increasingly faster hurdle crossing over test trials. The apparent energizing and reinforcing effects associated with the cue for experimental Ss were interpreted as supporting the position that stimuli associated with frustrative-nonreward may come to elicit a learned drive of conditioned frustration.