Machine generated contents note: Chapter 1 -- Optical and Genetic Approaches toward Understanding Spinal Circuits 3 -- Joseph R. Fetcho Chapter 2 -- Spinal Motoneurons: Synaptic Inputs and Receptor Organization 21 -- Robert E. W. Fyffe Chapter 3 -- S-HT Receptors and the Neuromodulatory Control of Spinal -- Caord Function 47 -- Function 47 -- Shawn chman, Sandra M. Garraway, David W Machacek, and -- Ilrbara L. Shay Chapter 4 -- Advances in Measuring Active Dendritic Currents in Spinal Motoneurons ---- J. Heckman and Robert H. Lee Chhapter 5 -- stigating the Synaptic Control of Human Motoneurons: -- W Techniques, Analyses, and Insights from Animal Models 107 -- ll K. Powers and Kemal S. Tiirker Chapter 6 -- Use of Correlational Methods to Investigate the Organization -- pinal Networks for Pattern Generation 135 -- a M. Hamm, Martha L. McCurdy, Tamara V Trqnk, -- imir V Turkin Chapter 7 -- -Motor Experience during the Development of Motility -- k Embryos171 -- A. Sharp and Anne Bekoff -- Chapter 8 -- Transformation of Descending Commands into Muscle Activity -- by Spinal Intereurons in Behaving Primates 193 -- Steve I. Perlmutter and Yifat Prut Chapter 9 -- Muscle Afferent Feedback during Human Walking 215 -- Thomas Sinkjaer, Jens B. Nielsen, Michael Voigt, Michel Ladouceur, -- Michael Grey, and Jacob B. Andersen Chapter 10 -- Canine Motor Neuron Disease: A View from the Motor Unit 231 -- Martin J. Pinter, Timothy C. Cope, Linda C. Cork, Sherril L. Green, -- and Mark M. Rich Chapter 11 -- Structural Plasticity of Motoneuron Dendrites Caused by Axotomy 251 -- P. Kenneth Rose, Victoria MacDermid, and Monica Neuber-Hess Chapter 12 -- How Does Nerve Injury Strengthen Ia-Motoneuron Synapses? 271 -- Timothy C. Cope, Kevin Seburn, and Charles R. Buck Chapter 13 -- The Organization of Distributed Proprioceptive Feedback -- in the Chronic Spinal Cat 305 -- Richard Nichols and Timothy C. Cope In dex 327 -- i,.