Figure 4.

Dependence of spike adaptation on the short-term stimulus history. The normalized response to deviant tones was analyzed depending on the number of standard tones presented right before. Spike activity was normalized to the mean response over all trials for one stimulus configuration. “Zero” standards means that there was deviant presented followed by a second one. Mean values from all units analyzed are given (±SEM). Activity from deviant stimuli after 10 or more standard stimuli in a row were analyzed together.