...Alexandra M. Yarger; Wolfgang Stein ABSTRACT The mechanisms of rhythmic motor pattern generation have been studied in detail in vitro , but the long-term stability and sources of variability in vivo are often not well described. The crab stomatogastric ganglion contains the well-characterized...

... decreased pyloric cycle frequency when conduction in the single input nerve to the stomatogastric ganglion, the stomatogastric nerve (stn), was blocked and cycle frequency was relatively low(average 0.34 Hz) (A), but had no effect on pyloric cycle frequency (B) or gastric cycle frequency (C) when the stn...

... of these CPGs are located in the stomatogastric ganglion (STG):the gastric mill circuit controls the chewing movements of three teeth in the gastric mill, and the pyloric CPG generates the rhythmic movement of the pyloric filter apparatus ( Hartline and Maynard, 1975 ; Maynard and Dando, 1974 ). The motor...

... patterns in the crab Cancer pagurus . AGR has a bipolar cell body in the stomatogastric ganglion; it was activated by tension increase in gastric mill powerstroke muscles. While two spike initiation zones accounted for its spontaneous activity, active membrane properties (sag potentials, spike frequency...

..., with CabTRP Ia being approximately 500 times more potent than CabTRP Ib. RIA performed on HPLC-separated C. borealis stomatogastric ganglion (STG) extract revealed that CabTRP Ia is the only detectable TRP-like moiety in this ganglion. Incubation of synthetic CabTRP Ia with the isolated STG excited...

...Andrew E. Christie; Petra Skiebe; Eve Marder ABSTRACT The crustacean stomatogastric ganglion, which is situated in the ophthalmic artery, can be modulated by both intrinsically released molecules and hormones. In the crab Cancer borealis , over a dozen neuroactive compounds have been identified...

...Bing Zhang; Ronald M. Harris-Warrick ABSTRACT The gastropyloric receptor (GPR) cells are a set of cholinergic/serotonergic mechanosensory neurons that modulate the activity of neural networks in the crab stomatogastric ganglion (STG). Stimulation of these cells evokes a variety of slow modulatory...

... resolved this peak into two immunoreactive peaks, one of which retained its bioactivity. The effects of peak E were blocked by the CCK antagonist proglumide. These results are consistent with a role for peak E in the feeding-induced activation of the gastric mill. stomatogastric ganglion spiny lobster...

...Bruce R. Johnson; Jack H. Peck; Ronald M. Harris-Warrick ABSTRACT We examined the temperature sensitivity of graded chemical synaptic strength within the pyloric circuit of the spiny lobster stomatogastric ganglion. Cooling from 20.4°C to 11.3°C reduced the graded synaptic potential (GSP) amplitude...

... of crustacean neuropil. II. Distribution of synaptic contacts on identified motor neurons in lobster stomatogastric ganglion . J. Neurocytol . 5 , 239 – 266 . 10.1007/BF01181658 Krenz , W. D. and Fischer , P. ( 1988 ). Ionic conductances in crustacean stomatogastric neurons in primary...

... neurones connect the suboesophageal ganglion with the tritocerebral lobes of the brain, and with the first ganglion of the stomatogastric nervous system, the frontal ganglion. 22 08 1989 © 1990 by Company of Biologists 1990 insects stomatogastric ganglion strand receptor visceral...

... in the stomatogastric ganglion (STG), and in somata in the oesophageal ganglion and commissural ganglia. Staining was blocked by preincubating the antiserum with RPCH, as well as with a number of adipokinetic hormones (AKHs) and related peptides. Synthetic RPCH had strong actions on the pyloric rhythm of the isolated...

...Barbara Beltz; Judith S. Eisen; Robert Flamm; Ronald M. Harris-Warrick; Scott L. Hooper; Eve Marder ABSTRACT The serotonergic innervation of the stomatogastric ganglion (STG) of three decapod crustacean species, Panulirus interruptus, Homarus americanus and Cancer irroratus, was studied...