Actions of GABA agonists and antagonists on invertebrate nerves and muscles / T.A. Miller and A.E. Chalmers -- GABA receptors of the insect central nervous system / S.C.R. Lummis, R.D. Pinnock, and D.B. Sattelle -- Responses to GABA and other neurotransmitters in insect central neuronal somata in vitro / Rainer Neumann, George Lees, David J. Beadle, and Jack A. Benson -- GABA-related systems as targets for insecticides / Fumio Matsumura, Keiji Tanaka, and Yoshihisa Ozoe -- Bicycloorthocarboxylates : potent insecticides acting at the GABA-regulated chloride ionophore / Christopher J. Palmer and John E. Casida -- Bicyclic phosphorus esters : insecticidal properties and binding sites in the housefly / Yoshihisa Ozoe -- Neurotoxic insecticides as antagonists of the GABAA receptor function / Jeffrey R. Bloomquist, Pamela M. Adams, and David M. Soderlund -- Interactions of insecticides with GABA-operated and voltage-dependent chloride channels / M.E. Eldefrawi, D.B. Gant, I.M. Abalis, and A.T. Eldefrawi -- GABA transaminase and glutamic acid decarboxylase as targets for insecticides / biochemical and toxicological assessment / D.W. Gammon, H.L. Gingrich, G. Sander, R.R. Stewart, and P.A. VanDerWerf -- Octopamine in insects : control of hemolymph lipid and visceral muscle in locusts / Ian Orchard and Angela B. Lange -- Phenylethanolamine receptors as selective targets for pesticide action / James A. Nathanson -- Effects of octopaminergic agents on the sex pheromone mediated behavior of adult Lepidoptera / C.E. Linn, Jr. and W.L. Roelofs -- Effects of formamidines on acarine dispersal and reproduction / Charles O. Knowles -- Actions of drugs and pesticides on components of octopaminergic neurotransmission / J.M. Wierenga and Robert M. Hollingworth -- N-acetylation of octopamine : a potential target for insecticide development / R.G.H. Downer and R.J. Martin -- Sodium channels : primary targets for insecticide action? / Y. Pichon, M. Pelhate, and U. Heilig -- Neuronal target sites of insecticides / Toshio Narahashi -- Enhancement of veratridine-dependent sodium channel activation by pyrethroids and DDT analogs / David M. Soderlund, Jeffrey R. Bloomquist, Syed M. Ghiasuddin, and Adam M. Stuart -- Insect synaptosomes in superfusion : a technique to investigate the actions of ion channel directed neurotoxicants by monitoring their effects on transmitter release / Russell A. Nicholson, Peter Baines, and Philip S. Robinson -- Methyllycaconitine, a potent natural insecticide active on the cholinergic receptor / K.R. Jennings, D.G. Brown, D.P. Wright, Jr., and A.E. Chalmers -- Anthelmintics affecting GABA and acetylcholine receptors on Ascaris muscle bags / K.A.F. Gration and I.D. Harrow -- Noncompetitive antagonism of glutamate receptors / P.N.R. Usherwood -- Panel discussion. Role of biochemical, physiological, and neurochemical research in the insecticide discovery process / A.E. Lund, D.W. Gammon, S.M. Sieburth, M.A. Brown, M.E. Schroeder, and K.R. Jennings.