... experiments, trials were excluded from analysis if the animal's body axis deviated by more than ±10 deg relative to a line drawn between the bath electrodes. In the trigeminal neuron ablation experiments, all trials were analyzed regardless of animal orientation because few animals were tested and field...

... concentrations (300 μmol l –1 ), trigeminal neurons responded with a greater change in[Ca 2+ ] i to MA (78% of KCl) than to CAP (43% of KCl). Furthermore, at 300 μmol l –1 , 48% of neurons responded to MA whereas only 16% responded to CAP. The increases in[Ca 2+ ] i induced by both MA and CAP were dependent upon...