The topographic organization of skilled movements seem to be particularly plastic. The author describes how they addressed this issue in their study, and what methods they used. The motor cortex is topographically organized into maps of different body parts. We used to think that the function of motor cortex was to drive individual muscles, but more recently we have learned that it is also organized to make complex movements. In this podcast Prof. Cam Teskey of the University of Calgary discuses in detail the emergence and topography of complex movement representation, as well as their plasticity during development.