... of the exopodite reductor motor neurone. The inhibitory effect of serotonin on the motor neurone was dose-dependent and its spike discharge was completely suppressed for long periods by 1 mmol l -1 serotonin perfusion. Nonspiking local interneurones in the terminal abdominal ganglion showed either a membrane...

... (e-mail: labhart@zool.unizh.ch ) 19 4 2001 © The Company of Biologists Limited 2001 2001 polarization vision photoreceptor interneurone model neurone spatial integration review cricket Gryllus campestris. Skylight polarization offers insects a useful reference...

... Limited 1989 DESCENDING INTERNEURONES OF THE LOCUST REPORTING DEVIATION FROM FLIGHT COURSE: WHAT IS THEIR ROLE IN STEERING? BY C. H. F. ROWELL Institute of Zoology, Basel University, Rheinsprung 9, 4051-Basel, Switzerland Summary Some descending intemeurones (DNs) in insects encode deviation from flight...

... that abdominal pumping ceases for the first seconds of flight. Our data indicate that this phenomenon is not due to inhibition of the respiratory system, since most interneurones and some motoneurones maintain a respiratory rhythm during the onset of flight activity. Likely explanations for the cessation...

...J. M. RAMIREZ; K.G. PEARSON Interneurones in the respiratory rhythm generator of the locust were identified by means of intracellular recording and staining techniques. A description is made of the properties and structures of nine intersegmental neurones which reset the respiratory rhythm when...

...H. REICHERT; C. H. F. ROWELL Simultaneous intracellular recordings were made in locusts from (a) flight motor neurones and (b) output interneurones of the flight oscillator. The insects were mounted with the head at the centre of rotation of an artificial horizon. During fictive flight...

... inter neurones. Eachswim interneurone provides axon branches in both pedal ganglia and the axonruns in the pedal commissure. Interneurone axon branches occur in thelateral neuropile of each pedal ganglion, in the region of motor neurone branching.The swim interneurones presumably play a major role...

...I. D. HARROW; D. B. SATTELLE 1. Ionophoresis of acetylcholine (ACh) onto the cell body membrane of an identified giant interneurone (GI2) in the central nervous system of the cockroach Periplaneta americana induced a depolarizing response at resting potential which was attributed to a population...

... not observed to spike in response to movements of the optomotor stimulus, but subthreshold oscillations of 5–10 mV, in phase with the response of the identified optomotor interneurone D1, were observed. Three motoneurones, the second pleuroaxillary, the subalar and the dorsal longitudinal to the more medial...