Ultrastructure of invertebrate synapses. - Synapse formation between identified invertebrate neurons in vitro. - Identified neurons and cellular homologies. - Functions of invertebrate glia. - Neuropeptides in invertebrates. - Purification characterisation and cellular distribution of insect neuropeptides with special emphasis on their relationship to biologically active peptides of vertebrates. - Neuroactive substances in the insect CNS. - Organization of conducting systems in simple invertebrates: Porifera Cnidaria and Stenophora. - Organisation and development of the peripheral nervous system in annelids. - Ontogenèse du système nerveux central des Chélicérates et sa signification éco-éthologique. - The nervous system of the Crustacea with special reference to the organisation of the sensory system. - Aspects of the functional and chemical anatomy of the insect brain. - Insect neurons: synaptic interactions circuits and the control of behavior. - Ontogenesis of the nervous system in Cephalopods. - Nervous system in Chaetognatha. - Neurobiology of the Echinodermata. - Tunicates. - Nervous mechanisms of spawning in regular echinoids. - Neural control mechanisms in bioluminescence. - Acoustic communication in crickets: Behavioral and neuronal mechanisms of song recognition and localization. - A model for decision making in the insect nervous system. - General conclusions. - Species Index. Language: English