Introduction to synaptic circuits, Gordon M.Shepherd and Christof Koch; membrane properties and neurotransmitter actions, David A.McCormick; peripheral ganglia, Paul R.Adams and Christof Koch; spinal cord - ventral horn, Robert E.Burke; olfactory bulb, Gordon M.Shepherd, and Charles A.Greer; retina, Peter Sterling; cerebellum, Rodolfo R.Llinas and Kerry D.Walton; thalamus, S.Murray Sherman and Christof Koch; basal ganglia, Charles J.Wilson; olfactory cortex, Lewis B.Haberly; hippocampus, Thomas H.Brown and Anthony M.Zador; neocortex, Rodney J.Douglas and Kevan A.C.Martin; Gordon M.Shepherd. Appendix: Dendretic electrotonus and synaptic integration.