A companion tech brief (Wells, 2007a) introduced the Martian, a simple agent system serving as a platform for investigations of meanings-based, affect-driven unsupervised learning processes. The purpose of using a Martian as an investigation platform is to introduce a biologically homologous agent platform that is complex enough to introduce biologically reasonable constraints on the learning processes without introducing so much complexity of detail in the anatomy of the agent as to render analysis of learning phenomena untenable. This tech brief provides a basic definition of the lower sensorimotor anatomy of the Martian.
