What is the difference in neural firing between trials when the rat sought the conditioned response compared to when the rat did not? a Firing rate (Hz) 10 20 CS-R 10 CR No CR CR No CR 10 -20 20 40 Time (s) Spikes / sec Epikes / sec Behavior No respons, No response Reward-seeking more variable on reward-seeking no difference O higher on reward-seeking more variable on reward non-seeking higher on reward non-seeking