Fig. 8. (A) Instantaneous electric organ discharge (EOD) rate (black and red) and the spike density function (SDF) (blue) during a ten rotation session. The six black lines represent rotations where the novelty response (NR) did occur (above threshold at time of NR maximum), while the four red lines represent rotations where the NR did not occur. Therefore, the probability for this stimulus series is 0.60 or 60%. (B) The effect of stimulus type on probability. T+A is significantly greater than Tub and Amp (^*P<0.05). Probabilities for all stimulus types containing LL are approximately equal (P>0.07). Error bars equal ± 2 s.e.m. Tub, tuberous electrosense; Amp, ampullary electrosense; LL, mechanosensory lateral line.