... in intracellular levels of cyclic GMP in sets of identified neurones in the ventral central nervous system. The most prominent cyclic-GMP-expressing cells are 34 neurones that appear to contain crustacean cardioactive peptide (CCAP). These CCAP cells show no detectable cyclic GMP at hatching or while the vermiform...

.... The cyclic contraction of the buccal muscles can be divided into three phases; the radula protraction phase, the radula retraction phase and the inactive phase. All the identified neurones make monosynaptic excitatory connections with the muscles that contract during the radula retraction phase. Bl and B2...

.... At the behavioural level, direction-selective motion detection can be described by essentially the same models in insects and man ( Hassenstein and Reichardt, 1956 ; van Santen and Sperling, 1984 , 1985 ). identified neurones synapse directionally selective motion detection visual system locust ©...

... , M. G. ( 1979 ). Morphology of identified neurons in the buccal ganglia of Lymnaea stagnalis . J. exp. Biol . 80 , 119 – 135 . 10.1242/jeb.80.1.119 Dieringer , N. , Koester , J. and Weiss , K. ( 1978 ). Adaptive changes in heart rate of Aplysia californica . J...

... that alter motoneuronal output. We have localized serotonin to identified neurones in the lobster ventral nerve cord and have shown further that the pentapeptide proctolin coexists with the amine in these cells. Such neurones provide a convenient system in which to study the functional interactions between...

... that was stimulated. * Present address: Department of Zoology, University of Cambridge, Downing Street, Cambridge CB2 3EJ, England. 12 10 1984 © 1985 by Company of Biologists 1985 Peptides identified neurones insect cardioregulation insect neuroendocrinology. Peptide...

...C. R. Mccrohan ABSTRACT Four identified neurone types (CV3, 7, 5 and 6), located in the ventral cerebral ganglia of Lymnaea stagnalis , are described. These cells have axonal projections in one or more of the nerves innervating the lips. In addition, they show rhythmic synaptic inputs leading...