... (OA) to the BG circuit produced concentration-dependent (10 −8 –10 −4 mol l −1 ) modulatory actions on the spontaneous burst activity of the bilaterally paired B67 pharyngeal motor neurons (MNs). OA increased B67's burst duration and the number of impulses per burst. These effects reflected actions...

...M. J. Brierley; A. J. Ashworth; J. R. Banks; R. J. Balment; C. R. McCrohan SUMMARY Bursting activity in type 1 Dahlgren cells was studied using intra- and extracellular recording from an in vitro preparation of the caudal neurosecretory system of the euryhaline flounder. 45% of cells showed...

.... The application of 5-HT induced action potentials in silent cells. In spontaneously active neurones, 5-HT increased the firing rate and either induced firing or enhanced bursting activity. The effect of 5-HT was dose-dependent within the range 1–100 μmol l −1 in cells of the intact organ. The effect persisted...

...David F. Russell ABSTRACT The burst pattern of the gastric mill rhythm was studied by varying its cycle period in in vitro preparations comprising the stomatogastric (STG), oesophageal and (paired) commissural ganglia. Reset tests using intracellular polarization of identified STG neurones showed...