Fig. 2. Comparison of the characteristics of the nitrergic motor patterns determined from 50 s stretches of activity. Depending on the mean bursting frequency, this observation period covered 26–57 cycles. Asterisks mark significant differences (sign-test: P<0.05; N=5). (A) Frequency of bursting. (B) Mean duty cycle (burst duration divided by cycle period). (C) Intra-burst frequency. (D) Number of units distinguishable in the extracellular recordings by visual inspection. cl, closer; op, opener; Hydrox., hydroxylamine; ODQ, 1H-(1,2,4)oxa-diazolo(4,3a)-quinoxalin-1-one; SNP, sodium nitroprusside. Values are mean + S.D.
