Fig. 9.

Adaptation of escape circuitry after unilateral ablation of trigeminal neurons. (A) Percentage of short- and long-latency behavioral responses elicited by stimuli applied to the intact side 1, 3 or 7 days after trigeminal ablation. Open squares indicate the percentage of trials that failed to elicit escape behavior. Included in this category are trials in which the animal righted itself after being knocked over by the stimulus jet. Four animals were tested on days 1 and 3; two animals were tested on day 7. (B) Percentage of short- and long-latency behavioral responses elicited by stimuli applied to the ablated side 1, 3 or 7 days after trigeminal ablation. Four animals were tested on days 1 and 3; two animals were tested on day 7. (C) Percentage of misdirected short- and long-latency behavioral responses elicited by stimuli applied to the ablated side 1, 3 or 7 days after trigeminal ablation. In these trials, the animal turned toward the stimulus rather than away. Diamonds indicate the percentage of misdirected responses elicited by stimuli applied to the intact side.