... of naturally produced hums is highly context dependent(A.H.B. and M. Marchaterre, unpublished observations) while the evoked correlates are strictly electrophysiological phenomona that reflect the state of the pattern generator. Unlike the fictive hums and growls, fictive grunt trains were easily triggered...

...Stuart Thompson; Winsor H. Watson, III SUMMARY The nudibranch mollusc Melibe leonina swims by bending from side to side. We have identified a network of neurons that appears to constitute the central pattern generator (CPG) for this locomotor behavior, one of only a few such networks...

... length change or stimulation parameter. Thus, in response to cold acclimation, there appears to be a reduction in EMG duty cycle at low swimming temperatures that is probably due to an alteration in the operation of the pattern generator. This novel acclimation probably improves muscle power output...

... ( Bentley, 1969 ; Elepfandt, 1980 ) as well as some unidentified interneurones ( Bentley, 1969 ). insect campaniform sensilla pattern generator phonotaxis © 1987 The Company of Biologists Ltd. 1987 12 12 1986 † Present address: Fachbereich Biologie, Universität...

...F. Nagy; P. S. Dickinson ABSTRACT In the lobsters Jasus lalandii and Palinurus vulgaris , the rhythmical activity of the pyloric pattern generator of the stomatogastric nervous system is strongly modified by the firing of a single identified interneurone, whose activity we have recorded from...

..., it might render the motoneurones of the pyloric pattern generator more sensitive to inputs from a command oscillator, and contribute to switching on the pyloric motor pattern. † To whom correspondence and reprint requests should be sent. * Present address: Physiology Group, School of Biological...